01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * 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<?> getExpectedType();
26:
27: public abstract Class<?> getType(ELContext context)
28: throws NullPointerException, PropertyNotFoundException,
29: ELException;
30:
31: public abstract boolean isReadOnly(ELContext context)
32: throws NullPointerException, PropertyNotFoundException,
33: ELException;
34:
35: public abstract void setValue(ELContext context, Object value)
36: throws NullPointerException, PropertyNotFoundException,
37: PropertyNotWritableException, ELException;
38:
39: public abstract Object getValue(ELContext context)
40: throws NullPointerException, PropertyNotFoundException,
41: ELException;
42:
43: }
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