[hibernate-commits] Hibernate SVN: r16365 - in core/branches/antlr3/src/main/java/org/hibernate/sql/ast: tree and 1 other directory.
hibernate-commits at lists.jboss.org
hibernate-commits at lists.jboss.org
Mon Apr 20 17:57:42 EDT 2009
Author: steve.ebersole at jboss.com
Date: 2009-04-20 17:57:42 -0400 (Mon, 20 Apr 2009)
New Revision: 16365
Added:
core/branches/antlr3/src/main/java/org/hibernate/sql/ast/tree/
core/branches/antlr3/src/main/java/org/hibernate/sql/ast/tree/Table.java
Log:
tree package
Added: core/branches/antlr3/src/main/java/org/hibernate/sql/ast/tree/Table.java
===================================================================
--- core/branches/antlr3/src/main/java/org/hibernate/sql/ast/tree/Table.java (rev 0)
+++ core/branches/antlr3/src/main/java/org/hibernate/sql/ast/tree/Table.java 2009-04-20 21:57:42 UTC (rev 16365)
@@ -0,0 +1,285 @@
+/*
+ * 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.tree;
+
+import java.util.List;
+import java.util.ArrayList;
+import java.util.LinkedHashSet;
+
+import org.antlr.runtime.Token;
+
+import org.hibernate.type.Type;
+import org.hibernate.sql.ast.alias.ImplicitAliasGenerator;
+import org.hibernate.sql.ast.common.HibernateTree;
+import org.hibernate.sql.ast.util.DisplayableNode;
+import org.hibernate.sql.ast.phase.hql.parse.HQLParser;
+import org.hibernate.persister.entity.Queryable;
+import org.hibernate.persister.collection.QueryableCollection;
+import org.hibernate.util.StringHelper;
+
+/**
+ * todo : javadocs
+ *
+ * @author Steve Ebersole
+ */
+public class Table extends HibernateTree implements DisplayableNode {
+ private final TableSpace tableSpace;
+
+ public Table(Token token, TableSpace tableSpace) {
+ super( token );
+ this.tableSpace = tableSpace;
+ tableSpace.addTable( this );
+ }
+
+ public Table(HibernateTree node, TableSpace tableSpace) {
+ this( node.getToken(), tableSpace );
+ }
+
+ public TableSpace getTableSpace() {
+ return tableSpace;
+ }
+
+ public HibernateTree getTableName() {
+ return ( HibernateTree ) getChild( 0 );
+ }
+
+ public String getTableNameText() {
+ return getTableName().getText();
+ }
+
+ public HibernateTree getAlias() {
+ return ( HibernateTree ) getChild( 1 );
+ }
+
+ 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();
+
+ public void addTable(Table table);
+
+
+ /**
+ * 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;
+ protected final LinkedHashSet<Table> tables = new LinkedHashSet<Table>();
+
+ 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 void addTable(Table table) {
+ tables.add( table );
+ }
+ }
+
+ 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 addTable(Table table) {
+ 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++ ) {
+ HibernateTree columnNode = new HibernateTree( HQLParser.COLUMN );
+ columnNode.addChild( new HibernateTree( HQLParser.ALIAS_REF, getDrivingTable().getAliasText() ) );
+ columnNode.addChild( new HibernateTree( HQLParser.IDENTIFIER, identifierColumnsNames[i] ) );
+ columnsReferences.add( columnNode );
+ }
+ 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;
+ }
+ }
+}
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