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: * @since 2.1
23: */
24: public abstract class ExpressionFactory {
25:
26: public abstract Object coerceToType(Object obj,
27: Class<?> expectedType) throws ELException;
28:
29: public abstract ValueExpression createValueExpression(
30: ELContext context, String expression, Class<?> expectedType)
31: throws NullPointerException, ELException;
32:
33: public abstract ValueExpression createValueExpression(
34: Object instance, Class<?> expectedType);
35:
36: public abstract MethodExpression createMethodExpression(
37: ELContext context, String expression,
38: Class<?> expectedReturnType, Class<?>[] expectedParamTypes)
39: throws ELException, NullPointerException;
40: }
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