[hibernate-commits] Hibernate SVN: r16307 - in core/branches/SQL_GEN_REDESIGN/src/main: antlr/v3 and 4 other directories.

Author: steve.ebersole(a)jboss.com Date: 2009-04-13 12:42:44 -0400 (Mon, 13 Apr 2009) New Revision: 16307 Added: core/branches/SQL_GEN_REDESIGN/src/main/antlr/v3/ core/branches/SQL_GEN_REDESIGN/src/main/antlr/v3/order/ core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/render/ core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/render/TableAliasBuilder.java core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/ core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/ASTFactoryImpl.java core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/AliasRef.java core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/Column.java core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/ExpectedTypeAware.java core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/HqlResolver.java core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/Name.java core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/PersisterTableProcesser.java core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/RowValueConstructorList.java core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/Table.java core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/Typed.java core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/load/ core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/load/LoadPlan.java Log: Added: core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/render/TableAliasBuilder.java =================================================================== --- core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/render/TableAliasBuilder.java (rev 0) +++ core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/render/TableAliasBuilder.java 2009-04-13 16:42:44 UTC (rev 16307) @@ -0,0 +1,68 @@ +/* + * Hibernate, Relational Persistence for Idiomatic Java + * + * Copyright (c) 2009, Red Hat Middleware LLC or third-party contributors as + * indicated by the @author tags or express copyright attribution + * statements applied by the authors. All third-party contributions are + * distributed under license by Red Hat Middleware LLC. + * + * This copyrighted material is made available to anyone wishing to use, modify, + * copy, or redistribute it subject to the terms and conditions of the GNU + * Lesser General Public License, as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License + * for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this distribution; if not, write to: + * Free Software Foundation, Inc. + * 51 Franklin Street, Fifth Floor + * Boston, MA 02110-1301 USA + */ +package org.hibernate.sql.ast.phase.hql.render; + +import org.hibernate.persister.entity.Queryable; +import org.hibernate.persister.collection.QueryableCollection; + +/** + * TODO : javadoc + * + * @author Steve Ebersole + */ +public interface TableAliasBuilder { + + public static class AliasRoot { + private final String base; + + public AliasRoot(String base) { + this.base = base; + } + + public String generate(int suffix) { + return base + Integer.toString( suffix ) + '_'; + } + + public boolean equals(Object o) { + if ( this == o ) { + return true; + } + if ( o == null || getClass() != o.getClass() ) { + return false; + } + AliasRoot aliasRoot = ( AliasRoot ) o; + return base.equals( aliasRoot.base ); + } + + public int hashCode() { + return base.hashCode(); + } + } + + public AliasRoot getSqlAliasRoot(Queryable persister, String alias); + + public AliasRoot getSqlAliasRoot(QueryableCollection persister, String alias); + + public AliasRoot getSimpleSqlAliasRoot(QueryableCollection persister); +} Added: core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/ASTFactoryImpl.java =================================================================== --- core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/ASTFactoryImpl.java (rev 0) +++ core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/ASTFactoryImpl.java 2009-04-13 16:42:44 UTC (rev 16307) @@ -0,0 +1,50 @@ +/* + * Hibernate, Relational Persistence for Idiomatic Java + * + * Copyright (c) 2009, Red Hat Middleware LLC or third-party contributors as + * indicated by the @author tags or express copyright attribution + * statements applied by the authors. All third-party contributions are + * distributed under license by Red Hat Middleware LLC. + * + * This copyrighted material is made available to anyone wishing to use, modify, + * copy, or redistribute it subject to the terms and conditions of the GNU + * Lesser General Public License, as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License + * for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this distribution; if not, write to: + * Free Software Foundation, Inc. + * 51 Franklin Street, Fifth Floor + * Boston, MA 02110-1301 USA + */ +package org.hibernate.sql.ast.phase.hql.resolve; + +import org.hibernate.sql.ast.common.NodeFactory; + +/** + * TODO : javadoc + * + * @author Steve Ebersole + */ +public class ASTFactoryImpl extends NodeFactory implements HqlResolveTokenTypes { + public Class getASTNodeType(int tokenType) { + switch ( tokenType ) { + case TABLE : + return Table.class; + case COLUMN : + return Column.class; + case ALIAS_REF : + return AliasRef.class; + case NAME : + return Name.class; + case ROW_VALUE_CONSTRUCTOR_LIST : + return RowValueConstructorList.class; + default: + return determineDefaultNodeClass(); + } + } +} Added: core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/AliasRef.java =================================================================== --- core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/AliasRef.java (rev 0) +++ core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/AliasRef.java 2009-04-13 16:42:44 UTC (rev 16307) @@ -0,0 +1,41 @@ +/* + * Hibernate, Relational Persistence for Idiomatic Java + * + * Copyright (c) 2009, Red Hat Middleware LLC or third-party contributors as + * indicated by the @author tags or express copyright attribution + * statements applied by the authors. All third-party contributions are + * distributed under license by Red Hat Middleware LLC. + * + * This copyrighted material is made available to anyone wishing to use, modify, + * copy, or redistribute it subject to the terms and conditions of the GNU + * Lesser General Public License, as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License + * for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this distribution; if not, write to: + * Free Software Foundation, Inc. + * 51 Franklin Street, Fifth Floor + * Boston, MA 02110-1301 USA + */ +package org.hibernate.sql.ast.phase.hql.resolve; + +import org.hibernate.sql.ast.common.Node; + +/** + * TODO : javadoc + * + * @author Steve Ebersole + */ +public class AliasRef extends Node { + public AliasRef() { + } + + public AliasRef(String alias) { + setType( HqlResolveTokenTypes.ALIAS_REF ); + setText( alias ); + } +} Added: core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/Column.java =================================================================== --- core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/Column.java (rev 0) +++ core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/Column.java 2009-04-13 16:42:44 UTC (rev 16307) @@ -0,0 +1,55 @@ +/* + * Hibernate, Relational Persistence for Idiomatic Java + * + * Copyright (c) 2009, Red Hat Middleware LLC or third-party contributors as + * indicated by the @author tags or express copyright attribution + * statements applied by the authors. All third-party contributions are + * distributed under license by Red Hat Middleware LLC. + * + * This copyrighted material is made available to anyone wishing to use, modify, + * copy, or redistribute it subject to the terms and conditions of the GNU + * Lesser General Public License, as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License + * for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this distribution; if not, write to: + * Free Software Foundation, Inc. + * 51 Franklin Street, Fifth Floor + * Boston, MA 02110-1301 USA + */ +package org.hibernate.sql.ast.phase.hql.resolve; + +import org.hibernate.sql.ast.common.Node; + +/** + * TODO : javadoc + * + * @author Steve Ebersole + */ +public class Column extends Node { + private String selectAlias; + + public Column() { + } + + public Column(String tableAlias, String columnName) { + super(); + setType( HqlResolveTokenTypes.COLUMN ); + setText( '{' + tableAlias + '.' + columnName + '}' ); + addChild( new AliasRef( tableAlias ) ); + addChild( new Name( columnName ) ); + } + + public Column injectSelectAlias(String selectAlias) { + this.selectAlias = selectAlias; + return this; + } + + public String getSelectAlias() { + return selectAlias; + } +} Added: core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/ExpectedTypeAware.java =================================================================== --- core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/ExpectedTypeAware.java (rev 0) +++ core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/ExpectedTypeAware.java 2009-04-13 16:42:44 UTC (rev 16307) @@ -0,0 +1,35 @@ +/* + * Hibernate, Relational Persistence for Idiomatic Java + * + * Copyright (c) 2009, Red Hat Middleware LLC or third-party contributors as + * indicated by the @author tags or express copyright attribution + * statements applied by the authors. All third-party contributions are + * distributed under license by Red Hat Middleware LLC. + * + * This copyrighted material is made available to anyone wishing to use, modify, + * copy, or redistribute it subject to the terms and conditions of the GNU + * Lesser General Public License, as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License + * for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this distribution; if not, write to: + * Free Software Foundation, Inc. + * 51 Franklin Street, Fifth Floor + * Boston, MA 02110-1301 USA + */ +package org.hibernate.sql.ast.phase.hql.resolve; + +import org.hibernate.type.Type; + +/** + * TODO : javadoc + * + * @author Steve Ebersole + */ +public interface ExpectedTypeAware extends Typed { + public void setExpectedType(Type expectedType); +} Added: core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/HqlResolver.java =================================================================== --- core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/HqlResolver.java (rev 0) +++ core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/HqlResolver.java 2009-04-13 16:42:44 UTC (rev 16307) @@ -0,0 +1,303 @@ +/* + * Hibernate, Relational Persistence for Idiomatic Java + * + * Copyright (c) 2009, Red Hat Middleware LLC or third-party contributors as + * indicated by the @author tags or express copyright attribution + * statements applied by the authors. All third-party contributions are + * distributed under license by Red Hat Middleware LLC. + * + * This copyrighted material is made available to anyone wishing to use, modify, + * copy, or redistribute it subject to the terms and conditions of the GNU + * Lesser General Public License, as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License + * for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this distribution; if not, write to: + * Free Software Foundation, Inc. + * 51 Franklin Street, Fifth Floor + * Boston, MA 02110-1301 USA + */ +package org.hibernate.sql.ast.phase.hql.resolve; + +import java.util.HashMap; + +import antlr.ASTFactory; +import antlr.RecognitionException; +import antlr.collections.AST; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import org.hibernate.MappingException; +import org.hibernate.QueryException; +import org.hibernate.engine.SessionFactoryImplementor; +import org.hibernate.persister.collection.QueryableCollection; +import org.hibernate.persister.entity.Queryable; +import org.hibernate.sql.ast.alias.DefaultTableAliasGenerator; +import org.hibernate.sql.ast.util.ASTPrinter; +import org.hibernate.sql.ast.util.ErrorHandlerDelegateImpl; +import org.hibernate.sql.ast.util.ErrorHandlerDelegate; +import org.hibernate.sql.ast.alias.TableAliasGenerator; +import org.hibernate.sql.ast.phase.hql.resolve.expression.ExpressionResolutionStrategyStack; +import org.hibernate.sql.ast.phase.hql.resolve.expression.DefaultExpressionResolutionStrategy; +import org.hibernate.sql.ast.phase.hql.resolve.expression.SelectClauseExpressionResolutionStrategy; +import org.hibernate.sql.ast.phase.hql.resolve.expression.FunctionArgumentExpressionResolutionStrategy; +import org.hibernate.type.AssociationType; +import org.hibernate.util.StringHelper; + +/** + * TODO : javadoc + * + * @author Steve Ebersole + */ +public class HqlResolver extends GeneratedHqlResolver { + private static final Logger log = LoggerFactory.getLogger( HqlResolver.class ); + + private final SessionFactoryImplementor sessionFactory; + private final ErrorHandlerDelegate parseErrorHandler = new ErrorHandlerDelegateImpl(); + private final ASTPrinter printer = new ASTPrinter( HqlResolveTokenTypes.class ); + + private final TableAliasGenerator tableAliasGenerator; + private final PersisterTableProcesser persisterTableProcesser; + + private ExpressionResolutionStrategyStack expressionResolverStack = new ExpressionResolutionStrategyStack(); + + private AST collectionFilterCondition; + + public HqlResolver(SessionFactoryImplementor sessionFactory) { + super(); + super.setASTFactory( new ASTFactoryImpl() ); + this.sessionFactory = sessionFactory; + // todo : make this configurable + this.tableAliasGenerator = new DefaultTableAliasGenerator( sessionFactory.getDialect() ); + this.persisterTableProcesser = new PersisterTableProcesser( getASTFactory() ); + expressionResolverStack.push( new DefaultExpressionResolutionStrategy( this ) ); + } + + public ASTPrinter getPrinter() { + return printer; + } + + + // overrides of Antlr infastructure methods ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + + public void reportError(RecognitionException e) { + getParseErrorHandler().reportError( e ); + } + + public void reportError(String s) { + getParseErrorHandler().reportError( s ); + } + + public void reportWarning(String s) { + getParseErrorHandler().reportWarning( s ); + } + + public ErrorHandlerDelegate getParseErrorHandler() { + return parseErrorHandler; + } + + static public void panic() { + //overriden to avoid System.exit + throw new QueryException( "Parser: panic" ); + } + + public void setASTFactory(ASTFactory astFactory) { + throw new UnsupportedOperationException( "not allowed!" ); + } + + + // handle trace logging ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + + public void traceIn(String ruleName, AST tree) { + if ( inputState.guessing > 0 ) { + return; + } + String prefix = StringHelper.repeat( '-', (traceDepth++ * 2) ) + "-> "; + String traceText = ruleName + " (" + buildTraceNodeName(tree) + ")"; + trace( prefix + traceText ); + } + + private String buildTraceNodeName(AST tree) { + return tree == null + ? "???" + : tree.getText() + " [" + printer.getTokenTypeName( tree.getType() ) + "]"; + } + + public void traceOut(String ruleName, AST tree) { + if ( inputState.guessing > 0 ) { + return; + } + String prefix = "<-" + StringHelper.repeat( '-', (--traceDepth * 2) ) + " "; + trace( prefix + ruleName ); + } + + private void trace(String msg) { + System.out.println( msg ); +// log.trace( msg ); + } + + + // semantic action overrides ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + + private HashMap aliasToTableSpaceMap = new HashMap(); + + public Table.TableSpace resolveTableSpaceByAlias(String alias) { + return ( Table.TableSpace ) aliasToTableSpaceMap.get( alias ); + } + + protected AST resolveEntityPersister(AST entityName, AST alias, AST filter) { + final Queryable persister = ( Queryable ) sessionFactory.getEntityPersister( entityName.getText() ); + final String aliasText = alias.getText(); + + Table.EntityTableSpace tableSpace = new Table.EntityTableSpace( persister, aliasText ); + aliasToTableSpaceMap.put( aliasText, tableSpace ); + + TableAliasGenerator.TableAliasRoot aliasRoot = tableAliasGenerator.generateSqlAliasRoot( persister, aliasText ); + + Table table = persisterTableProcesser.buildTables( + persister, + aliasRoot, + tableSpace + ); + + if ( filter != null ) { + String filteredCollectionRole = filter.getText(); + QueryableCollection filteredCollectionPersister = + ( QueryableCollection ) sessionFactory.getCollectionPersister( filteredCollectionRole ); + collectionFilterCondition = persisterTableProcesser.handleCollectionFilterConditions( + table, + aliasRoot, + filteredCollectionPersister + ); + } + + return table; + } + + protected void postProcessQuery(AST query) { + if ( collectionFilterCondition != null ) { + AST selectClause = query.getFirstChild(); + AST fromClause = selectClause.getNextSibling(); + AST whereClause = fromClause.getNextSibling(); + if ( whereClause == null ) { + // there was no where-clause, group-by-clause or having-clause... + whereClause = astFactory.create( WHERE, "where" ); + fromClause.setNextSibling( whereClause ); + } + else if ( whereClause.getType() == GROUP_BY ) { + // there was no where-clause, but was a group-by-clause + AST groupByClause = whereClause; + whereClause = astFactory.create( WHERE, "where" ); + whereClause.setNextSibling( groupByClause ); + fromClause.setNextSibling( whereClause ); + } + assert whereClause.getType() == WHERE : "mis-structured AST"; + log.trace( printer.showAsString( collectionFilterCondition, "collection-filter key condition" ) ); + appendSearchCondition( collectionFilterCondition, whereClause ); + collectionFilterCondition = null; + } + } + + protected AST resolveCollectionPersister(AST collectionRole, AST alias) { + return super.resolveCollectionPersister( collectionRole, alias ); + } + + protected void applyPropertyJoin(AST lhs, AST rhs, AST propertyName, AST joinType, AST with) { + final AST correlation = generateAssociationJoinCondition( lhs, rhs, propertyName ); + AST on = astFactory.create( ON, "on" ); + if ( with == null ) { + on.addChild( correlation ); + } + else { + AST and = astFactory.create( AND, "and" ); + and.addChild( correlation ); + and.addChild( with ); + on.addChild( and ); + } + + AST join = astFactory.create( JOIN, "join" ); + join.addChild( joinType ); + join.addChild( rhs ); + join.addChild( on ); + + lhs.addChild( join ); + } + + private AST generateAssociationJoinCondition(AST lhs, AST rhs, AST propertyName) { + final String propertyNameText = propertyName.getText(); + Table lhsTable = ( Table ) lhs; + Table.TableSpace lhsTableSpace = lhsTable.getTableSpace(); + String lhsTableAlias = lhsTableSpace.getContainingTable( propertyNameText ).getAliasText(); + String[] lhsJoinColumns = lhsTableSpace.getPropertyColumnNames( propertyNameText ); + + AssociationType propertyType = ( AssociationType ) lhsTableSpace.getPropertyType( propertyNameText ); + String rhsPropertyName = propertyType.getRHSUniqueKeyPropertyName(); + Table.TableSpace rhsTableSpace = ( ( Table ) rhs ).getTableSpace(); + String rhsTableAlias; + String[] rhsJoinColumns; + if ( rhsPropertyName == null ) { + // reference to RHS PK + rhsTableAlias = rhsTableSpace.getJoinIntoTable().getAliasText(); + rhsJoinColumns = rhsTableSpace.getJoinIntoColumns(); + } + else { + // reference to RHS property-ref + Table rhsTable = rhsTableSpace.getContainingTable( rhsPropertyName ); + rhsTableAlias = rhsTable.getAliasText(); + rhsJoinColumns = rhsTableSpace.getPropertyColumnNames( rhsPropertyName ); + } + + if ( lhsJoinColumns.length != rhsJoinColumns.length ) { + throw new MappingException( "Association had unequal number of columns : " + propertyType.getName() ); + } + + return persisterTableProcesser.generateJoinCorrelation( lhsTableAlias, lhsJoinColumns, rhsTableAlias, rhsJoinColumns ); + } + + protected AST generateIndexValueCondition(AST lhs, AST rhs, AST propertyName, AST selector) { + return super.generateIndexValueCondition( lhs, rhs, propertyName, selector ); + } + + protected void startSelectClause() { + expressionResolverStack.push( new SelectClauseExpressionResolutionStrategy( this ) ); + } + + protected void finishSelectClause() { + expressionResolverStack.pop(); + } + + protected void startFunction() { + expressionResolverStack.push( new FunctionArgumentExpressionResolutionStrategy( this ) ); + } + + protected void finishFunction() { + expressionResolverStack.pop(); + } + + protected void appendSearchCondition(AST condition, AST container) { + if ( container.getFirstChild() == null ) { + container.setFirstChild( condition ); + } + else { + AST and = getASTFactory().create( AND, "and" ); + and.setFirstChild( container.getFirstChild() ); + and.addChild( condition ); + container.setFirstChild( and ); + } + } + + protected AST resolvePropertyReference(AST persisterAlias, AST propertyName) { + final String aliasText = persisterAlias.getText(); + final String propertyNameText = propertyName.getText(); + + return expressionResolverStack.getCurrent().resolvePropertyReference( aliasText, propertyNameText ); + } + + protected AST resolveAliasReference(AST aliasReference) { + return expressionResolverStack.getCurrent().resolveAliasReference( aliasReference.getText() ); + } +} Added: core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/Name.java =================================================================== --- core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/Name.java (rev 0) +++ core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/Name.java 2009-04-13 16:42:44 UTC (rev 16307) @@ -0,0 +1,41 @@ +/* + * Hibernate, Relational Persistence for Idiomatic Java + * + * Copyright (c) 2009, Red Hat Middleware LLC or third-party contributors as + * indicated by the @author tags or express copyright attribution + * statements applied by the authors. All third-party contributions are + * distributed under license by Red Hat Middleware LLC. + * + * This copyrighted material is made available to anyone wishing to use, modify, + * copy, or redistribute it subject to the terms and conditions of the GNU + * Lesser General Public License, as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License + * for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this distribution; if not, write to: + * Free Software Foundation, Inc. + * 51 Franklin Street, Fifth Floor + * Boston, MA 02110-1301 USA + */ +package org.hibernate.sql.ast.phase.hql.resolve; + +import org.hibernate.sql.ast.common.Node; + +/** + * TODO : javadoc + * + * @author Steve Ebersole + */ +public class Name extends Node { + public Name() { + } + + public Name(String name) { + setType( HqlResolveTokenTypes.NAME ); + setText( name ); + } +} Added: core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/PersisterTableProcesser.java =================================================================== --- core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/PersisterTableProcesser.java (rev 0) +++ core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/PersisterTableProcesser.java 2009-04-13 16:42:44 UTC (rev 16307) @@ -0,0 +1,226 @@ +/* + * Hibernate, Relational Persistence for Idiomatic Java + * + * Copyright (c) 2009, Red Hat Middleware LLC or third-party contributors as + * indicated by the @author tags or express copyright attribution + * statements applied by the authors. All third-party contributions are + * distributed under license by Red Hat Middleware LLC. + * + * This copyrighted material is made available to anyone wishing to use, modify, + * copy, or redistribute it subject to the terms and conditions of the GNU + * Lesser General Public License, as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License + * for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this distribution; if not, write to: + * Free Software Foundation, Inc. + * 51 Franklin Street, Fifth Floor + * Boston, MA 02110-1301 USA + */ +package org.hibernate.sql.ast.phase.hql.resolve; + +import antlr.ASTFactory; +import antlr.collections.AST; + +import org.hibernate.persister.entity.Queryable; +import org.hibernate.persister.entity.Joinable; +import org.hibernate.persister.MappedTableMetadata; +import org.hibernate.persister.collection.QueryableCollection; +import org.hibernate.sql.ast.alias.TableAliasGenerator; + +/** + * TODO : javadoc + * + * @author Steve Ebersole + */ +public class PersisterTableProcesser implements HqlResolveTokenTypes { + private final ASTFactory astFactory; + + public PersisterTableProcesser(ASTFactory astFactory) { + this.astFactory = astFactory; + } + + public Table buildTables(Queryable persister, TableAliasGenerator.TableAliasRoot aliasRoot, Table.EntityTableSpace tableSpace) { + MappedTableMetadata tableMetadata = persister.getMappedTableMetadata(); + + final String drivingTableName = tableMetadata.getDrivingTableName(); + final String[] drivingTableJoinColumns = tableMetadata.getIdentifierColumnNames(); + final String drivingTableAlias = aliasRoot.generate( 0 ); + final Table drivingTable = generateTableReference( drivingTableName, drivingTableAlias ); + tableSpace.registerTable( drivingTable ); + + int suffix = 0; + + MappedTableMetadata.JoinedTable[] tables = tableMetadata.getJoinedTables(); + for ( int i = 0; i < tables.length; i++ ) { + final String joinTableAlias = aliasRoot.generate( ++suffix ); + final Table table = generateTableReference( tables[i].getName(), joinTableAlias ); + tableSpace.registerTable( table ); + + final AST join = astFactory.create( JOIN, "join" ); + drivingTable.addChild( join ); + join.setFirstChild( tables[i].useInnerJoin() ? astFactory.create( INNER, "inner" ) : astFactory.create( LEFT, "left outer" ) ); + join.addChild( table ); + + final AST on = astFactory.create( ON, "on" ); + join.addChild( on ); + on.setFirstChild( generateJoinCorrelation( drivingTableAlias, drivingTableJoinColumns, joinTableAlias, tables[i].getKeyColumns() ) ); + } + + return drivingTable; + } + + public Table buildTables( + QueryableCollection collectionPersister, + TableAliasGenerator.TableAliasRoot aliasRoot, + Table.CollectionTableSpace tableSpace) { + if ( collectionPersister.isOneToMany() ) { + Table table = buildTables( + ( Queryable ) collectionPersister.getElementPersister(), + aliasRoot, + tableSpace.getEntityElementTableSpace() + ); + tableSpace.setCollectionTable( table ); + return table; + } + else { + Table associationTable = generateTableReference( + collectionPersister.getTableName(), + aliasRoot.generateCollectionTableAlias() + ); + tableSpace.setCollectionTable( associationTable ); + + if ( collectionPersister.isManyToMany() ) { + Queryable elementPersister = ( Queryable ) collectionPersister.getElementPersister(); + Table drivingTable = buildTables( + elementPersister, + aliasRoot, + tableSpace.getEntityElementTableSpace() + ); + + AST join = astFactory.create( JOIN, "join" ); + associationTable.addChild( join ); + join.addChild( astFactory.create( LEFT, "left outer" ) ); + join.addChild( drivingTable ); + + String[] entityFkColumnNames = collectionPersister.getElementColumnNames(); + String[] entityPkColumnNames = elementPersister.getKeyColumnNames(); + + AST on = astFactory.create( ON, "on" ); + join.addChild( on ); + on.setFirstChild( + generateJoinCorrelation( + associationTable.getAliasText(), + entityFkColumnNames, + drivingTable.getAliasText(), + entityPkColumnNames + ) + ); + } + return associationTable; + } + } + + public AST handleCollectionFilterConditions( + Table drivingEntityTable, + TableAliasGenerator.TableAliasRoot aliasRoot, + QueryableCollection filteredCollectionPersister) { + Table collectionKeyTable = drivingEntityTable; + + if ( !filteredCollectionPersister.isOneToMany() ) { + // need to deal with the collection table, which is where the collection-key would be... + Table associationTable = generateTableReference( + filteredCollectionPersister.getTableName(), + aliasRoot.generateCollectionTableAlias() + ); + + String[] entityFkColumnNames = filteredCollectionPersister.getElementColumnNames(); + String[] entityPkColumnNames = ( ( Joinable ) filteredCollectionPersister.getElementPersister() ).getKeyColumnNames(); + + AST join = astFactory.create( JOIN, "join" ); + drivingEntityTable.addChild( join ); + join.addChild( astFactory.create( LEFT, "left outer" ) ); + join.addChild( associationTable ); + + AST on = astFactory.create( ON, "on" ); + join.addChild( on ); + on.setFirstChild( + generateJoinCorrelation( + drivingEntityTable.getAliasText(), + entityPkColumnNames, + associationTable.getAliasText(), + entityFkColumnNames + ) + ); + + collectionKeyTable = associationTable; + } + + return generateCollectionFilterRestriction( + collectionKeyTable.getAliasText(), + filteredCollectionPersister.getKeyColumnNames() + ); + } + + private Table generateTableReference(String tableName, String alias) { + Table tableReference = ( Table ) astFactory.create( TABLE, "table" ); + tableReference.addChild( astFactory.create( NAME, tableName ) ); + tableReference.addChild( astFactory.create( ALIAS, alias ) ); + return tableReference; + } + + public AST generateJoinCorrelation( + String lhsAlias, + String[] lhsColumns, + String rhsAlias, + String[] rhsColumns) { + AST correlation = generateJoinCorrelation( lhsAlias, lhsColumns[0], rhsAlias, rhsColumns[0] ); + if ( lhsColumns.length > 1 ) { + for ( int i = 1; i < lhsColumns.length; i++ ) { + AST previous = correlation; + correlation = astFactory.create( AND, "and" ); + correlation.setFirstChild( previous ); + correlation.addChild( generateJoinCorrelation( lhsAlias, lhsColumns[i], rhsAlias, rhsColumns[i] ) ); + } + } + return correlation; + } + + public AST generateJoinCorrelation(String lhsAlias, String lhsColumn, String rhsAlias, String rhsColumn) { + AST lhs = astFactory.create( COLUMN, "column" ); + lhs.addChild( astFactory.create( ALIAS_REF, lhsAlias ) ); + lhs.addChild( astFactory.create( NAME, lhsColumn ) ); + + AST rhs = astFactory.create( COLUMN, "column" ); + rhs.addChild( astFactory.create( ALIAS_REF, rhsAlias ) ); + rhs.addChild( astFactory.create( NAME, rhsColumn ) ); + + AST correlation = astFactory.create( EQUALS_OP, "=" ); + correlation.addChild( lhs ); + correlation.addChild( rhs ); + + return correlation; + } + + private AST generateCollectionFilterRestriction(String alias, String[] keyColumns) { + // todo : for now we restrict this to single-column FKs + // Looks like this is true of old code as well... + + AST column = astFactory.create( COLUMN, "column" ); + column.addChild( astFactory.create( ALIAS_REF, alias ) ); + column.addChild( astFactory.create( NAME, keyColumns[0] ) ); + + AST param = astFactory.create( NAMED_PARAM, "collection-filter-key" ); // todo : put this in a well known place + + AST correlation = astFactory.create( EQUALS_OP, "=" ); + correlation.addChild( column ); + correlation.addChild( param ); + + return correlation; + } + +} Added: core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/RowValueConstructorList.java =================================================================== --- core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/RowValueConstructorList.java (rev 0) +++ core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/RowValueConstructorList.java 2009-04-13 16:42:44 UTC (rev 16307) @@ -0,0 +1,75 @@ +/* + * Hibernate, Relational Persistence for Idiomatic Java + * + * Copyright (c) 2009, Red Hat Middleware LLC or third-party contributors as + * indicated by the @author tags or express copyright attribution + * statements applied by the authors. All third-party contributions are + * distributed under license by Red Hat Middleware LLC. + * + * This copyrighted material is made available to anyone wishing to use, modify, + * copy, or redistribute it subject to the terms and conditions of the GNU + * Lesser General Public License, as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License + * for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this distribution; if not, write to: + * Free Software Foundation, Inc. + * 51 Franklin Street, Fifth Floor + * Boston, MA 02110-1301 USA + */ +package org.hibernate.sql.ast.phase.hql.resolve; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import org.hibernate.sql.ast.common.Node; +import org.hibernate.type.Type; +import org.hibernate.type.ComponentType; + +import antlr.collections.AST; + +/** + * TODO : javadoc + * + * @author Steve Ebersole + */ +public class RowValueConstructorList extends Node implements ExpectedTypeAware { + private static final Logger log = LoggerFactory.getLogger( RowValueConstructorList.class ); + + private Type hibernateType; + + public RowValueConstructorList() { + setType( HqlResolveTokenTypes.ROW_VALUE_CONSTRUCTOR_LIST ); + setText( "row-value-ctor-list" ); + } + + public void setExpectedType(Type expectedType) { + if ( hibernateType != null ) { + log.info( "Over-setting expected type [{} -> {}]", hibernateType.getName(), expectedType.getName() ); + } + hibernateType = expectedType; + if ( expectedType.isComponentType() ) { + final ComponentType componentType = ( ComponentType ) expectedType; + final Type[] subtypes = componentType.getSubtypes(); + final int length = subtypes.length; + if ( length == getNumberOfChildren() ) { + AST child = getFirstChild(); + for ( int i = 0, max = subtypes.length; i < max; i++ ) { + if ( child instanceof ExpectedTypeAware ) { + log.debug( "propogating expected type info for component sub-property [{}]", componentType.getPropertyNames()[i] ); + ( ( ExpectedTypeAware ) child ).setExpectedType( subtypes[i] ); + } + child = child.getNextSibling(); + } + } + } + } + + public Type getHibernateType() { + return hibernateType; + } +} Added: core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/Table.java =================================================================== --- core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/Table.java (rev 0) +++ core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/Table.java 2009-04-13 16:42:44 UTC (rev 16307) @@ -0,0 +1,237 @@ +package org.hibernate.sql.ast.phase.hql.resolve; + +import java.util.ArrayList; +import java.util.List; + +import org.hibernate.sql.ast.common.Node; +import org.hibernate.sql.ast.alias.ImplicitAliasGenerator; +import org.hibernate.sql.ast.util.DisplayableNode; +import org.hibernate.persister.entity.Queryable; +import org.hibernate.persister.collection.QueryableCollection; +import org.hibernate.util.StringHelper; +import org.hibernate.type.Type; + +/** + * TODO : javadoc + * + * @author Steve Ebersole + */ +public class Table extends Node implements DisplayableNode { + private TableSpace tableSpace; + + public Table() { + setType( HqlResolveTokenTypes.TABLE ); + setText( "table" ); + } + + public TableSpace getTableSpace() { + return tableSpace; + } + + public Node getTableName() { + return ( Node ) getFirstChild(); + } + + public String getTableNameText() { + return getTableName().getText(); + } + + public Node getAlias() { + return ( Node ) getFirstChild().getNextSibling(); + } + + public String getAliasText() { + return getAlias().getText(); + } + + public String getText() { + return getTableNameText() + " (" + getAliasText() + ")"; + } + + public String getDisplayText() { + return "[source-alias=" + tableSpace.getSourceAlias() + "]"; + } + + public static interface TableSpace { + /** + * Used as a unique identification since each table space originates from a single source alias (persister reference). + * + * @return The source alias. + */ + public String getSourceAlias(); + + /** + * Get the table reference that should act as the RHS for this table space whenever we join to into it. + * + * @return The RHS table for joining into this table space structure. + */ + public Table getJoinIntoTable(); + + public String[] getJoinIntoColumns(); + + /** + * Get the table reference that contains the columns to which the given property is mapped. + * + * @param propertyName The name of the property for which to locate the containing table. + * + * @return The containing table. + */ + public Table getContainingTable(String propertyName); + + public Type getPropertyType(String propertyName); + + public String[] getPropertyColumnNames(String propertyName); + + public List buildIdentifierColumnReferences(); + + public List buildCompleteColumnReferences(); + } + + public static abstract class AbstractTableSpace implements Table.TableSpace { + private final String sourceAlias; + private final String sqlAliasBaseRoot; + + private AbstractTableSpace(String sourceAlias, String persisterName) { + this.sourceAlias = sourceAlias; + this.sqlAliasBaseRoot = ImplicitAliasGenerator.isImplicitAlias( sourceAlias ) ? persisterName : sourceAlias; + } + + public String getSourceAlias() { + return sourceAlias; + } + + public String getSqlAliasBaseRoot() { + return sqlAliasBaseRoot; + } + } + + public static class EntityTableSpace extends AbstractTableSpace { + private final Queryable entityPersister; + private final ArrayList tables; + + public EntityTableSpace(Queryable entityPersister, String sourecAlias) { + super( sourecAlias, StringHelper.unqualifyEntityName( entityPersister.getEntityName() ) ); + this.entityPersister = entityPersister; + int numberOfTables = entityPersister.getMappedTableMetadata().getJoinedTables().length + 1; + int listSize = numberOfTables + (int) ( numberOfTables * .75 ) + 1; + this.tables = new ArrayList( listSize ); + } + + public Queryable getEntityPersister() { + return entityPersister; + } + + public void registerTable(Table table) { + table.tableSpace = this; + tables.add( table ); + } + + public Table getDrivingTable() { + return ( Table ) tables.get( 0 ); + } + + public Table getJoinIntoTable() { + return getDrivingTable(); + } + + public String[] getJoinIntoColumns() { + return entityPersister.getIdentifierColumnNames(); + } + + public Table getContainingTable(String propertyName) { + return ( Table ) tables.get( entityPersister.getSubclassPropertyTableNumber( propertyName ) ); + } + + public Type getPropertyType(String propertyName) { + return entityPersister.getPropertyType( propertyName ); + } + + public String[] getPropertyColumnNames(String propertyName) { + int index = entityPersister.getEntityMetamodel().getPropertyIndex( propertyName ); + return entityPersister.getPropertyColumnNames( index ); + } + + public List buildIdentifierColumnReferences() { + String[] identifierColumnsNames = entityPersister.getIdentifierColumnNames(); + ArrayList columnsReferences = new ArrayList( collectionSizeWithoutRehashing( identifierColumnsNames.length ) ); + for ( int i = 0; i < identifierColumnsNames.length; i++ ) { + columnsReferences.add( new Column( getDrivingTable().getAliasText(), identifierColumnsNames[i] ) ); + } + return columnsReferences; + } + + public List buildCompleteColumnReferences() { + // todo : implement + return null; + } + } + + private static int collectionSizeWithoutRehashing(int elements) { + // usually collection load factors are .75 + return collectionSizeWithoutRehashing( elements, .75 ); + } + + private static int collectionSizeWithoutRehashing(int elements, double factor) { + return elements + ( (int) ( elements * factor ) + 1 ); + } + + public static class CollectionTableSpace extends AbstractTableSpace { + private final QueryableCollection persister; + private final boolean areElementsEntities; + + private Table collectionTable; + private EntityTableSpace entityElementTableSpace; + + public CollectionTableSpace(QueryableCollection persister, String sourceAlias) { + super( sourceAlias, StringHelper.unqualify( persister.getRole() ) ); + this.persister = persister; + this.areElementsEntities = persister.getElementType().isEntityType(); + if ( areElementsEntities ) { + entityElementTableSpace = new EntityTableSpace( ( Queryable ) persister.getElementPersister(), sourceAlias ); + } + } + + public QueryableCollection getPersister() { + return persister; + } + + public void setCollectionTable(Table collectionTable) { + this.collectionTable = collectionTable; + } + + public EntityTableSpace getEntityElementTableSpace() { + return entityElementTableSpace; + } + + public Table getJoinIntoTable() { + return collectionTable; + } + + public String[] getJoinIntoColumns() { + return persister.getKeyColumnNames(); + } + + public Table getContainingTable(String propertyName) { + // todo : are we needing to handle "collection properties" (SIZE, etc) here still? + return getEntityElementTableSpace().getContainingTable( propertyName ); + } + + public Type getPropertyType(String propertyName) { + return getEntityElementTableSpace().getPropertyType( propertyName ); + } + + public String[] getPropertyColumnNames(String propertyName) { + return getEntityElementTableSpace().getPropertyColumnNames( propertyName ); + } + + public List buildIdentifierColumnReferences() { + // todo : implement + return null; + } + + public List buildCompleteColumnReferences() { + // todo : implement + return null; + } + } +} Added: core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/Typed.java =================================================================== --- core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/Typed.java (rev 0) +++ core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/Typed.java 2009-04-13 16:42:44 UTC (rev 16307) @@ -0,0 +1,35 @@ +/* + * Hibernate, Relational Persistence for Idiomatic Java + * + * Copyright (c) 2009, Red Hat Middleware LLC or third-party contributors as + * indicated by the @author tags or express copyright attribution + * statements applied by the authors. All third-party contributions are + * distributed under license by Red Hat Middleware LLC. + * + * This copyrighted material is made available to anyone wishing to use, modify, + * copy, or redistribute it subject to the terms and conditions of the GNU + * Lesser General Public License, as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License + * for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this distribution; if not, write to: + * Free Software Foundation, Inc. + * 51 Franklin Street, Fifth Floor + * Boston, MA 02110-1301 USA + */ +package org.hibernate.sql.ast.phase.hql.resolve; + +import org.hibernate.type.Type; + +/** + * TODO : javadoc + * + * @author Steve Ebersole + */ +public interface Typed { + public Type getHibernateType(); +} Added: core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/load/LoadPlan.java =================================================================== --- core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/load/LoadPlan.java (rev 0) +++ core/branches/SQL_GEN_REDESIGN/src/main/java/org/hibernate/sql/ast/phase/hql/resolve/load/LoadPlan.java 2009-04-13 16:42:44 UTC (rev 16307) @@ -0,0 +1,38 @@ +/* + * Hibernate, Relational Persistence for Idiomatic Java + * + * Copyright (c) 2009, Red Hat Middleware LLC or third-party contributors as + * indicated by the @author tags or express copyright attribution + * statements applied by the authors. All third-party contributions are + * distributed under license by Red Hat Middleware LLC. + * + * This copyrighted material is made available to anyone wishing to use, modify, + * copy, or redistribute it subject to the terms and conditions of the GNU + * Lesser General Public License, as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License + * for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this distribution; if not, write to: + * Free Software Foundation, Inc. + * 51 Franklin Street, Fifth Floor + * Boston, MA 02110-1301 USA + */ +package org.hibernate.sql.ast.phase.hql.resolve.load; + +import org.hibernate.type.Type; + +/** + * I want this to be an encapsulation of the information needed by Loader. Stuff like the persisters, the aliases, etc... + * + * @author Steve Ebersole + */ +public class LoadPlan { + // todo : distinguish (interfaces/impls?) between dynamic-instantiation, scalar, and entity load plans + + private Type[] queryReturnTypes; + +}