File	Doc	Category	Size	Date	Package
QueryNode.java	API Doc	Hibernate 3.2.5	3628	Thu Jul 14 23:39:42 BST 2005	org.hibernate.hql.ast.tree

QueryNode

• java.lang.Object
  • AbstractRestrictableStatement

Fields Summary
private static final Log	log
private OrderByClause	orderByClause
private String	alias

Constructors Summary

Methods Summary
public java.lang.String	getAlias() return alias;
public org.hibernate.type.Type	getDataType() return ( (SelectExpression) getSelectClause().getFirstSelectExpression() ).getDataType();
public FromElement	getFromElement() return null;
protected org.apache.commons.logging.Log	getLog() return log;
public final OrderByClause	getOrderByClause() if ( orderByClause == null ) { orderByClause = locateOrderByClause(); // if there is no order by, make one if ( orderByClause == null ) { log.debug( "getOrderByClause() : Creating a new ORDER BY clause" ); orderByClause = ( OrderByClause ) ASTUtil.create( getWalker().getASTFactory(), SqlTokenTypes.ORDER, "ORDER" ); // Find the WHERE; if there is no WHERE, find the FROM... AST prevSibling = ASTUtil.findTypeInChildren( this, SqlTokenTypes.WHERE ); if ( prevSibling == null ) { prevSibling = ASTUtil.findTypeInChildren( this, SqlTokenTypes.FROM ); } // Now, inject the newly built ORDER BY into the tree orderByClause.setNextSibling( prevSibling.getNextSibling() ); prevSibling.setNextSibling( orderByClause ); } } return orderByClause;
public final SelectClause	getSelectClause() Locate the select clause that is part of this select statement. Note, that this might return null as derived select clauses (i.e., no select clause at the HQL-level) get generated much later than when we get created; thus it depends upon lifecycle. return Our select clause, or null. // Due to the complexity in initializing the SelectClause, do not generate one here. // If it is not found; simply return null... // // Also, do not cache since it gets generated well after we are created. return ( SelectClause ) ASTUtil.findTypeInChildren( this, SqlTokenTypes.SELECT_CLAUSE );
public int	getStatementType() see Statement#getStatementType() return HqlSqlTokenTypes.QUERY;
protected int	getWhereClauseParentTokenType() return SqlTokenTypes.FROM;
public final boolean	hasOrderByClause() OrderByClause orderByClause = locateOrderByClause(); return orderByClause != null && orderByClause.getNumberOfChildren() > 0;
public boolean	isConstructor() return false;
public boolean	isReturnableEntity() return false;
public boolean	isScalar() return true;
private OrderByClause	locateOrderByClause() return ( OrderByClause ) ASTUtil.findTypeInChildren( this, SqlTokenTypes.ORDER );
public boolean	needsExecutor() see Statement#needsExecutor() return false;
public void	setAlias(java.lang.String alias) this.alias = alias;
public void	setScalarColumnText(int i) ColumnHelper.generateSingleScalarColumn( this, i );