// $Id: CollectionFunction.java 7460 2005-07-12 20:27:29Z steveebersole $
package org.hibernate.hql.ast.tree;
import antlr.SemanticException;
import antlr.collections.AST;
/**
* Represents 'elements()' or 'indices()'.
*
* @author josh Dec 6, 2004 8:36:42 AM
*/
public class CollectionFunction extends MethodNode implements DisplayableNode {
public void resolve(boolean inSelect) throws SemanticException {
initializeMethodNode( this, inSelect );
if ( !isCollectionPropertyMethod() ) {
throw new SemanticException( this.getText() + " is not a collection property name!" );
}
AST expr = getFirstChild();
if ( expr == null ) {
throw new SemanticException( this.getText() + " requires a path!" );
}
resolveCollectionProperty( expr );
}
protected void prepareSelectColumns(String[] selectColumns) {
// we need to strip off the embedded parens so that sql-gen does not double these up
String subselect = selectColumns[0].trim();
if ( subselect.startsWith( "(") && subselect.endsWith( ")" ) ) {
subselect = subselect.substring( 1, subselect.length() -1 );
}
selectColumns[0] = subselect;
}
}