/*
* Copyright 2008 Udai Gupta, Ralf Joachim
*
* 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.
*/
package org.castor.cpa.query.object.function;
import java.util.Iterator;
import java.util.List;
import org.castor.cpa.query.Expression;
/**
* Final class that represents functions with custom names of CastorQL.
*
* @author <a href="mailto:mailtoud AT gmail DOT com">Udai Gupta</a>
* @author <a href="mailto:ralf DOT joachim AT syscon DOT eu">Ralf Joachim</a>
* @version $Revision: 7121 $ $Date: 2006-04-25 16:09:10 -0600 (Tue, 25 Apr 2006) $
* @since 1.3
*/
public final class CustomFunction extends AbstractFunction {
//--------------------------------------------------------------------------
/** The name of CastorFunction. */
private final String _name;
/** The list of parameter expressions of CastorFunction. */
private List < Expression > _parameters;
//--------------------------------------------------------------------------
/**
* Construct a new CustomFunction with given name.
*
* @param name Name of the function.
*/
public CustomFunction(final String name) {
if (name == null) { throw new NullPointerException(); }
_name = name;
}
//--------------------------------------------------------------------------
/**
* Gets the name of CastorFunction.
*
* @return The name of CastorFunction.
*/
public String getName() {
return _name;
}
/**
* Gets the list of parameter expressions of CastorFunction.
*
* @return The list of parameter expressions of CastorFunction.
*/
public List < Expression > getParameters() {
return _parameters;
}
/**
* Sets the list of parameter expressions of CastorFunction.
*
* @param parameters The list of parameter expressions of CastorFunction.
*/
public void setParameters(final List < Expression > parameters) {
_parameters = parameters;
}
//--------------------------------------------------------------------------
/**
* {@inheritDoc}
*/
public StringBuilder toString(final StringBuilder sb) {
sb.append(_name).append('(');
if (_parameters != null) {
for (Iterator < Expression > iter = _parameters.iterator(); iter.hasNext(); ) {
Expression expression = iter.next();
if (expression != null) { expression.toString(sb); }
if (iter.hasNext()) { sb.append(", "); }
}
}
return sb.append(')');
}
//--------------------------------------------------------------------------
}