org.apache.openjpa.kernel.exps.Lit 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.Filters;
import org.apache.openjpa.kernel.StoreContext;
/**
* Represents a literal.
*
* @author Abe White
*/
class Lit
extends Val
implements Literal {
private Object _val;
private final int _ptype;
/**
* Constructor. Provide constant value.
*/
public Lit(Object val, int ptype) {
_val = val;
_ptype = ptype;
}
public Object getValue() {
return _val;
}
public void setValue(Object val) {
_val = val;
}
public int getParseType() {
return _ptype;
}
public Object getValue(Object[] parameters) {
return _val;
}
public Class getType() {
return (_val == null) ? Object.class : _val.getClass();
}
public void setImplicitType(Class type) {
_val = Filters.convert(_val, type);
}
protected Object eval(Object candidate, Object orig,
StoreContext ctx, Object[] params) {
return _val;
}
}