KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > javax > el > ValueExpression


1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */

17
18 package javax.el;
19
20 /**
21  *
22  */

23 public abstract class ValueExpression extends Expression {
24
25     public abstract Class JavaDoc<?> getExpectedType();
26     
27     public abstract Class JavaDoc<?> getType(ELContext context) throws NullPointerException JavaDoc, PropertyNotFoundException, ELException;
28     
29     public abstract boolean isReadOnly(ELContext context) throws NullPointerException JavaDoc, PropertyNotFoundException, ELException;
30     
31     public abstract void setValue(ELContext context, Object JavaDoc value) throws NullPointerException JavaDoc, PropertyNotFoundException, PropertyNotWritableException, ELException;
32     
33     public abstract Object JavaDoc getValue(ELContext context) throws NullPointerException JavaDoc, PropertyNotFoundException, ELException;
34
35 }
36
Popular Tags