/**********************************************************************
Copyright (c) 2008 Erik Bengtson and others. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
Contributors:
...
**********************************************************************/
package org.jpox.query.expression;
import java.util.List;
import org.jpox.query.symbol.PropertySymbol;
import org.jpox.query.symbol.Symbol;
import org.jpox.query.symbol.SymbolTable;
public class CreatorExpression extends Expression
{
SymbolTable symtbl;
List tuples;
List parameters;
public CreatorExpression(SymbolTable symtbl, List tuples, List parameters)
{
this.symtbl = symtbl;
this.tuples = tuples;
this.parameters = parameters;
}
public Object evaluate(ExpressionEvaluator eval)
{
return eval.evaluate(this);
}
public String getId()
{
StringBuffer id = new StringBuffer();
for( int i=0; i<tuples.size(); i++)
{
if( id.length()>0)
{
id.append('.');
}
id.append((String)tuples.get(i));
}
return id.toString();
}
public List getTuples()
{
return tuples;
}
public Symbol bind()
{
if( symtbl.hasSymbol(getId()))
{
symbol = symtbl.getSymbol(getId());
}
else
{
symbol = new PropertySymbol(getId(),symtbl.getType(tuples));
}
return symbol;
}
public List getParameters()
{
return parameters;
}
}