javax.el.ValueExpression 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 javax.el;
/**
*
*/
public abstract class ValueExpression extends Expression {
private static final long serialVersionUID = 8577809572381654673L;
public abstract Class getExpectedType();
public abstract Class getType(ELContext context) throws NullPointerException, PropertyNotFoundException, ELException;
public abstract boolean isReadOnly(ELContext context) throws NullPointerException, PropertyNotFoundException, ELException;
public abstract void setValue(ELContext context, Object value) throws NullPointerException, PropertyNotFoundException, PropertyNotWritableException, ELException;
public abstract Object getValue(ELContext context) throws NullPointerException, PropertyNotFoundException, ELException;
/**
* @since EL 2.2
*/
public ValueReference getValueReference(@SuppressWarnings("unused") ELContext context) {
// Expected to be over-ridden by implementation
return null;
}
}