Package org.hibernate.hql.ast.tree

Examples of org.hibernate.hql.ast.tree.FromElement


      return false;
    }

    List fromElements = currentFromClause.getExplicitFromElements();
    if ( fromElements.size() == 1 ) {
      final FromElement fromElement = ( FromElement ) fromElements.get( 0 );
      try {
        if( trace ) log.trace( "attempting to resolve property [" + identText + "] as a non-qualified ref" );
        return fromElement.getPropertyMapping( identText ).toType( identText ) != null;
      }
      catch( QueryException e ) {
        // Should mean that no such property was found
      }
    }
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    return false;
  }

  protected AST lookupNonQualifiedProperty(AST property) throws SemanticException {
    final FromElement fromElement = ( FromElement ) currentFromClause.getExplicitFromElements().get( 0 );
    AST syntheticDotNode = generateSyntheticDotNodeForNonQualifiedPropertyRef( property, fromElement );
    return lookupProperty( syntheticDotNode, false, getCurrentClauseType() == HqlSqlTokenTypes.SELECT );
  }
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      joinProcessor.processJoins( qn );

      // Attach any mapping-defined "ORDER BY" fragments
      Iterator itr = qn.getFromClause().getProjectionList().iterator();
      while ( itr.hasNext() ) {
        final FromElement fromElement = ( FromElement ) itr.next();
//      if ( fromElement.isFetch() && fromElement.isCollectionJoin() ) {
        if ( fromElement.isFetch() && fromElement.getQueryableCollection() != null ) {
          // Does the collection referenced by this FromElement
          // specify an order-by attribute?  If so, attach it to
          // the query's order-by
          if ( fromElement.getQueryableCollection().hasOrdering() ) {
            String orderByFragment = fromElement
                .getQueryableCollection()
                .getSQLOrderByString( fromElement.getCollectionTableAlias() );
            qn.getOrderByClause().addOrderFragment( orderByFragment );
          }
          if ( fromElement.getQueryableCollection().hasManyToManyOrdering() ) {
            String orderByFragment = fromElement.getQueryableCollection()
                .getManyToManyOrderByString( fromElement.getTableAlias() );
            qn.getOrderByClause().addOrderFragment( orderByFragment );
          }
        }
      }
    }
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  }

  protected void postProcessDML(RestrictableStatement statement) throws SemanticException {
    statement.getFromClause().resolve();

    FromElement fromElement = ( FromElement ) statement.getFromClause().getFromElements().get( 0 );
    Queryable persister = fromElement.getQueryable();
    // Make #@%$^#^&# sure no alias is applied to the table name
    fromElement.setText( persister.getTableName() );

//    // append any filter fragments; the EMPTY_MAP is used under the assumption that
//    // currently enabled filters should not affect this process
//    if ( persister.getDiscriminatorType() != null ) {
//      new SyntheticAndFactory( getASTFactory() ).addDiscriminatorWhereFragment(
//              statement,
//              persister,
//              java.util.Collections.EMPTY_MAP,
//              fromElement.getTableAlias()
//      );
//    }
    if ( persister.getDiscriminatorType() != null || ! queryTranslatorImpl.getEnabledFilters().isEmpty() ) {
      new SyntheticAndFactory( this ).addDiscriminatorWhereFragment(
              statement,
              persister,
              queryTranslatorImpl.getEnabledFilters(),
              fromElement.getTableAlias()
      );
    }

  }
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      case ALIAS_REF:
        // Notify the FROM element that it is being referenced by the select.
        FromReferenceNode aliasRefNode = ( FromReferenceNode ) node;
        //aliasRefNode.resolve( false, false, aliasRefNode.getText() ); //TODO: is it kosher to do it here?
        aliasRefNode.resolve( false, false ); //TODO: is it kosher to do it here?
        FromElement fromElement = aliasRefNode.getFromElement();
        if ( fromElement != null ) {
          fromElement.setIncludeSubclasses( true );
        }
      default:
        break;
    }
  }
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  protected void beforeSelectClause() throws SemanticException {
    // Turn off includeSubclasses on all FromElements.
    FromClause from = getCurrentFromClause();
    List fromElements = from.getFromElements();
    for ( Iterator iterator = fromElements.iterator(); iterator.hasNext(); ) {
      FromElement fromElement = ( FromElement ) iterator.next();
      fromElement.setIncludeSubclasses( false );
    }
  }
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      int length = collectionFromElements.size();
      collectionPersisters = new QueryableCollection[length];
      collectionOwners = new int[length];
      collectionSuffixes = new String[length];
      for ( int i=0; i<length; i++ ) {
        FromElement collectionFromElement = (FromElement) collectionFromElements.get(i);
        collectionPersisters[i] = collectionFromElement.getQueryableCollection();
        collectionOwners[i] = fromElementList.indexOf( collectionFromElement.getOrigin() );
//        collectionSuffixes[i] = collectionFromElement.getColumnAliasSuffix();
//        collectionSuffixes[i] = Integer.toString( i ) + "_";
        collectionSuffixes[i] = collectionFromElement.getCollectionSuffix();
      }
    }

    int size = fromElementList.size();
    entityPersisters = new Queryable[size];
    entityEagerPropertyFetches = new boolean[size];
    entityAliases = new String[size];
    sqlAliases = new String[size];
    sqlAliasSuffixes = new String[size];
    includeInSelect = new boolean[size];
    owners = new int[size];
    ownerAssociationTypes = new EntityType[size];

    for ( int i = 0; i < size; i++ ) {
      final FromElement element = ( FromElement ) fromElementList.get( i );
      entityPersisters[i] = ( Queryable ) element.getEntityPersister();

      if ( entityPersisters[i] == null ) {
        throw new IllegalStateException( "No entity persister for " + element.toString() );
      }

      entityEagerPropertyFetches[i] = element.isAllPropertyFetch();
      sqlAliases[i] = element.getTableAlias();
      entityAliases[i] = element.getClassAlias();
      sqlAliasByEntityAlias.put( entityAliases[i], sqlAliases[i] );
      // TODO should we just collect these like with the collections above?
      sqlAliasSuffixes[i] = ( size == 1 ) ? "" : Integer.toString( i ) + "_";
//      sqlAliasSuffixes[i] = element.getColumnAliasSuffix();
      includeInSelect[i] = !element.isFetch();
      if ( includeInSelect[i] ) {
        selectLength++;
      }

      owners[i] = -1; //by default
      if ( element.isFetch() ) {
        if ( element.isCollectionJoin() || element.getQueryableCollection() != null ) {
          // This is now handled earlier in this method.
        }
        else if ( element.getDataType().isEntityType() ) {
          EntityType entityType = ( EntityType ) element.getDataType();
          if ( entityType.isOneToOne() ) {
            owners[i] = fromElementList.indexOf( element.getOrigin() );
          }
          ownerAssociationTypes[i] = entityType;
        }
      }
    }
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      int length = collectionFromElements.size();
      collectionPersisters = new QueryableCollection[length];
      collectionOwners = new int[length];
      collectionSuffixes = new String[length];
      for ( int i=0; i<length; i++ ) {
        FromElement collectionFromElement = (FromElement) collectionFromElements.get(i);
        collectionPersisters[i] = collectionFromElement.getQueryableCollection();
        collectionOwners[i] = fromElementList.indexOf( collectionFromElement.getOrigin() );
//        collectionSuffixes[i] = collectionFromElement.getColumnAliasSuffix();
//        collectionSuffixes[i] = Integer.toString( i ) + "_";
        collectionSuffixes[i] = collectionFromElement.getCollectionSuffix();
      }
    }

    int size = fromElementList.size();
    entityPersisters = new Queryable[size];
    entityEagerPropertyFetches = new boolean[size];
    entityAliases = new String[size];
    sqlAliases = new String[size];
    sqlAliasSuffixes = new String[size];
    includeInSelect = new boolean[size];
    owners = new int[size];
    ownerAssociationTypes = new EntityType[size];

    for ( int i = 0; i < size; i++ ) {
      final FromElement element = ( FromElement ) fromElementList.get( i );
      entityPersisters[i] = ( Queryable ) element.getEntityPersister();

      if ( entityPersisters[i] == null ) {
        throw new IllegalStateException( "No entity persister for " + element.toString() );
      }

      entityEagerPropertyFetches[i] = element.isAllPropertyFetch();
      sqlAliases[i] = element.getTableAlias();
      entityAliases[i] = element.getClassAlias();
      sqlAliasByEntityAlias.put( entityAliases[i], sqlAliases[i] );
      // TODO should we just collect these like with the collections above?
      sqlAliasSuffixes[i] = ( size == 1 ) ? "" : Integer.toString( i ) + "_";
//      sqlAliasSuffixes[i] = element.getColumnAliasSuffix();
      includeInSelect[i] = !element.isFetch();
      if ( includeInSelect[i] ) {
        selectLength++;
      }

      owners[i] = -1; //by default
      if ( element.isFetch() ) {
        if ( element.isCollectionJoin() || element.getQueryableCollection() != null ) {
          // This is now handled earlier in this method.
        }
        else if ( element.getDataType().isEntityType() ) {
          EntityType entityType = ( EntityType ) element.getDataType();
          if ( entityType.isOneToOne() ) {
            owners[i] = fromElementList.indexOf( element.getOrigin() );
          }
          ownerAssociationTypes[i] = entityType;
        }
      }
    }
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    }

    // Iterate through the alias,JoinSequence pairs and generate SQL token nodes.
    Iterator iter = fromElements.iterator();
    while ( iter.hasNext() ) {
      final FromElement fromElement = ( FromElement ) iter.next();
      JoinSequence join = fromElement.getJoinSequence();
      join.setSelector(
          new JoinSequence.Selector() {
            public boolean includeSubclasses(String alias) {
              // The uber-rule here is that we need to include  subclass joins if
              // the FromElement is in any way dereferenced by a property from
              // the subclass table; otherwise we end up with column references
              // qualified by a non-existent table reference in the resulting SQL...
              boolean containsTableAlias = fromClause.containsTableAlias( alias );
              if ( fromElement.isDereferencedBySubclassProperty() ) {
                // TODO : or should we return 'containsTableAlias'??
                log.trace( "forcing inclusion of extra joins [alias=" + alias + ", containsTableAlias=" + containsTableAlias + "]" );
                return true;
              }
              boolean shallowQuery = walker.isShallowQuery();
              boolean includeSubclasses = fromElement.isIncludeSubclasses();
              boolean subQuery = fromClause.isSubQuery();
              return includeSubclasses && containsTableAlias && !subQuery && !shallowQuery;
            }
          }
      );
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    if ( !walker.getSessionFactoryHelper().getFactory().getDialect().supportsTemporaryTables() ) {
      throw new HibernateException( "cannot perform multi-table updates using dialect not supporting temp tables" );
    }

    UpdateStatement updateStatement = ( UpdateStatement ) walker.getAST();
    FromElement fromElement = updateStatement.getFromClause().getFromElement();
    String bulkTargetAlias = fromElement.getTableAlias();
    this.persister = fromElement.getQueryable();

    this.idInsertSelect = generateIdInsertSelect( persister, bulkTargetAlias, updateStatement.getWhereClause() );
    log.trace( "Generated ID-INSERT-SELECT SQL (multi-table update) : " +  idInsertSelect );

    String[] tableNames = persister.getConstraintOrderedTableNameClosure();
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