org.apache.openjpa.kernel.exps.Param Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.openjpa.kernel.exps;
import org.apache.openjpa.kernel.StoreContext;
/**
* Represents a parameter.
*
* @author Abe White
*/
class Param
extends Val
implements Parameter {
private String _name = null;
private Class _type = null;
private int _index = -1;
/**
* Constructor. Provide parameter name and type.
*/
public Param(String name, Class type) {
_name = name;
_type = type;
}
public String getParameterName() {
return _name;
}
public Class getType() {
return _type;
}
public void setImplicitType(Class type) {
_type = type;
}
public void setIndex(int index) {
_index = index;
}
public Object getValue(Object[] params) {
return params[_index];
}
protected Object eval(Object candidate, Object orig,
StoreContext ctx, Object[] params) {
return getValue(params);
}
}