[hibernate-commits] Hibernate SVN: r11115 - in branches/Branch_3_2/Hibernate3/src/org/hibernate: loader/hql and 1 other directories.

Author: steve.ebersole(a)jboss.com Date: 2007-01-30 09:29:39 -0500 (Tue, 30 Jan 2007) New Revision: 11115 Modified: branches/Branch_3_2/Hibernate3/src/org/hibernate/loader/criteria/CriteriaLoader.java branches/Branch_3_2/Hibernate3/src/org/hibernate/loader/hql/QueryLoader.java branches/Branch_3_2/Hibernate3/src/org/hibernate/persister/entity/AbstractEntityPersister.java branches/Branch_3_2/Hibernate3/src/org/hibernate/persister/entity/JoinedSubclassEntityPersister.java branches/Branch_3_2/Hibernate3/src/org/hibernate/persister/entity/Lockable.java Log: HHH-2392 : HQL/Criteria + lockmode (joined-subclass) Modified: branches/Branch_3_2/Hibernate3/src/org/hibernate/loader/criteria/CriteriaLoader.java =================================================================== --- branches/Branch_3_2/Hibernate3/src/org/hibernate/loader/criteria/CriteriaLoader.java 2007-01-30 11:30:23 UTC (rev 11114) +++ branches/Branch_3_2/Hibernate3/src/org/hibernate/loader/criteria/CriteriaLoader.java 2007-01-30 14:29:39 UTC (rev 11115) @@ -19,8 +19,8 @@ import org.hibernate.engine.SessionImplementor; import org.hibernate.impl.CriteriaImpl; import org.hibernate.loader.OuterJoinLoader; -import org.hibernate.persister.entity.Loadable; import org.hibernate.persister.entity.OuterJoinLoadable; +import org.hibernate.persister.entity.Lockable; import org.hibernate.transform.ResultTransformer; import org.hibernate.type.Type; @@ -125,16 +125,18 @@ return sqlSelectString; } - Map keyColumnNames = null; - Loadable[] persisters = getEntityPersisters(); - String[] entityAliases = getAliases(); - if ( dialect.forUpdateOfColumns() ) { - keyColumnNames = new HashMap(); - for ( int i=0; i<entityAliases.length; i++ ) { - keyColumnNames.put( entityAliases[i], persisters[i].getIdentifierColumnNames() ); + final Map aliasedLockModes = new HashMap(); + final Map keyColumnNames = dialect.forUpdateOfColumns() ? new HashMap() : null; + final String[] drivingSqlAliases = getAliases(); + for ( int i = 0; i < drivingSqlAliases.length; i++ ) { + final Lockable drivingPersister = ( Lockable ) getEntityPersisters()[i]; + final String sqlAlias = drivingPersister.getRootTableAlias( drivingSqlAliases[i] ); + aliasedLockModes.put( sqlAlias, lockModes.get( drivingSqlAliases[i] ) ); + if ( keyColumnNames != null ) { + keyColumnNames.put( sqlAlias, drivingPersister.getRootTableIdentifierColumnNames() ); } } - return dialect.applyLocksToSql( sqlSelectString, lockModes, keyColumnNames ); + return dialect.applyLocksToSql( sqlSelectString, aliasedLockModes, keyColumnNames ); } protected LockMode[] getLockModes(Map lockModes) { Modified: branches/Branch_3_2/Hibernate3/src/org/hibernate/loader/hql/QueryLoader.java =================================================================== --- branches/Branch_3_2/Hibernate3/src/org/hibernate/loader/hql/QueryLoader.java 2007-01-30 11:30:23 UTC (rev 11114) +++ branches/Branch_3_2/Hibernate3/src/org/hibernate/loader/hql/QueryLoader.java 2007-01-30 14:29:39 UTC (rev 11115) @@ -23,6 +23,7 @@ import org.hibernate.hql.ast.QueryTranslatorImpl; import org.hibernate.hql.ast.tree.FromElement; import org.hibernate.hql.ast.tree.SelectClause; +import org.hibernate.hql.ast.tree.QueryNode; import org.hibernate.impl.IteratorImpl; import org.hibernate.loader.BasicLoader; import org.hibernate.param.ParameterSpecification; @@ -30,6 +31,7 @@ import org.hibernate.persister.collection.QueryableCollection; import org.hibernate.persister.entity.Loadable; import org.hibernate.persister.entity.Queryable; +import org.hibernate.persister.entity.Lockable; import org.hibernate.transform.ResultTransformer; import org.hibernate.type.EntityType; import org.hibernate.type.Type; @@ -280,34 +282,35 @@ if ( lockModes == null || lockModes.size() == 0 ) { return sql; } - else { - // can't cache this stuff either (per-invocation) - //we are given a map of user alias -> lock mode - //create a new map of sql alias -> lock mode - final Map aliasedLockModes = new HashMap(); - final Iterator iter = lockModes.entrySet().iterator(); - while ( iter.hasNext() ) { - Map.Entry me = ( Map.Entry ) iter.next(); - final String userAlias = ( String ) me.getKey(); - final String sqlAlias = (String) sqlAliasByEntityAlias.get( userAlias ); - if (sqlAlias==null) { - throw new IllegalArgumentException("alias not found: " + userAlias); - } - aliasedLockModes.put( sqlAlias, me.getValue() ); - } - //if necessary, create a map of sql alias -> key columns - Map keyColumnNames = null; - if ( dialect.forUpdateOfColumns() ) { - final Loadable[] persisters = getEntityPersisters(); - keyColumnNames = new HashMap(); - for ( int i = 0; i < sqlAliases.length; i++ ) { - keyColumnNames.put( sqlAliases[i], persisters[i].getIdentifierColumnNames() ); - } + // can't cache this stuff either (per-invocation) + // we are given a map of user-alias -> lock mode + // create a new map of sql-alias -> lock mode + final Map aliasedLockModes = new HashMap(); + final Map keyColumnNames = dialect.forUpdateOfColumns() ? new HashMap() : null; + final Iterator iter = lockModes.entrySet().iterator(); + while ( iter.hasNext() ) { + Map.Entry me = ( Map.Entry ) iter.next(); + final String userAlias = ( String ) me.getKey(); + final String drivingSqlAlias = ( String ) sqlAliasByEntityAlias.get( userAlias ); + if ( drivingSqlAlias == null ) { + throw new IllegalArgumentException( "could not locate alias to apply lock mode : " + userAlias ); } - - return dialect.applyLocksToSql( sql, aliasedLockModes, keyColumnNames ); + // at this point we have (drivingSqlAlias) the SQL alias of the driving table + // corresponding to the given user alias. However, the driving table is not + // (necessarily) the table against which we want to apply locks. Mainly, + // the exception case here is joined-subclass hierarchies where we instead + // want to apply the lock against the root table (for all other strategies, + // it just happens that driving and root are the same). + final QueryNode select = ( QueryNode ) queryTranslator.getSqlAST(); + final Lockable drivingPersister = ( Lockable ) select.getFromClause().getFromElement( userAlias ).getQueryable(); + final String sqlAlias = drivingPersister.getRootTableAlias( drivingSqlAlias ); + aliasedLockModes.put( sqlAlias, me.getValue() ); + if ( keyColumnNames != null ) { + keyColumnNames.put( sqlAlias, drivingPersister.getRootTableIdentifierColumnNames() ); + } } + return dialect.applyLocksToSql( sql, aliasedLockModes, keyColumnNames ); } protected boolean upgradeLocks() { Modified: branches/Branch_3_2/Hibernate3/src/org/hibernate/persister/entity/AbstractEntityPersister.java =================================================================== --- branches/Branch_3_2/Hibernate3/src/org/hibernate/persister/entity/AbstractEntityPersister.java 2007-01-30 11:30:23 UTC (rev 11114) +++ branches/Branch_3_2/Hibernate3/src/org/hibernate/persister/entity/AbstractEntityPersister.java 2007-01-30 14:29:39 UTC (rev 11115) @@ -1338,6 +1338,10 @@ return getSubclassTableName( 0 ); } + public String getRootTableAlias(String drivingAlias) { + return drivingAlias; + } + public String[] getRootTableIdentifierColumnNames() { return getRootTableKeyColumnNames(); } Modified: branches/Branch_3_2/Hibernate3/src/org/hibernate/persister/entity/JoinedSubclassEntityPersister.java =================================================================== --- branches/Branch_3_2/Hibernate3/src/org/hibernate/persister/entity/JoinedSubclassEntityPersister.java 2007-01-30 11:30:23 UTC (rev 11114) +++ branches/Branch_3_2/Hibernate3/src/org/hibernate/persister/entity/JoinedSubclassEntityPersister.java 2007-01-30 14:29:39 UTC (rev 11115) @@ -573,6 +573,10 @@ return naturalOrderTableNames[0]; } + public String getRootTableAlias(String drivingAlias) { + return generateTableAlias( drivingAlias, getTableId( getRootTableName(), tableNames ) ); + } + public Declarer getSubclassPropertyDeclarer(String propertyPath) { if ( "class".equals( propertyPath ) ) { // special case where we need to force incloude all subclass joins Modified: branches/Branch_3_2/Hibernate3/src/org/hibernate/persister/entity/Lockable.java =================================================================== --- branches/Branch_3_2/Hibernate3/src/org/hibernate/persister/entity/Lockable.java 2007-01-30 11:30:23 UTC (rev 11114) +++ branches/Branch_3_2/Hibernate3/src/org/hibernate/persister/entity/Lockable.java 2007-01-30 14:29:39 UTC (rev 11115) @@ -1,7 +1,11 @@ package org.hibernate.persister.entity; /** - * Contract for things that can be locked via a {@link org.hibernate.dialect.lock.LockingStrategy} + * Contract for things that can be locked via a {@link org.hibernate.dialect.lock.LockingStrategy}. + * <p/> + * Currently only the root table gets locked, except for the case of HQL and Criteria queries + * against dialects which do not support either (1) FOR UPDATE OF or (2) support hint locking + * (in which case *all* queried tables would be locked). * * @author Steve Ebersole * @since 3.2 @@ -15,6 +19,16 @@ public String getRootTableName(); /** + * Get the SQL alias this persister would use for the root table + * given the passed driving alias. + * + * @param drivingAlias The driving alias; or the alias for the table + * mapped by this persister in the hierarchy. + * @return The root table alias. + */ + public String getRootTableAlias(String drivingAlias); + + /** * Get the names of columns on the root table used to persist the identifier. * * @return The root table identifier column names.