52 lines
1.9 KiB
Java
52 lines
1.9 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package javax.servlet.jsp.el;
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/**
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* <p>
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* This class is used to customize the way an ExpressionEvaluator resolves
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* variable references at evaluation time. For example, instances of this class
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* can implement their own variable lookup mechanisms, or introduce the notion
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* of "implicit variables" which override any other variables. An instance of
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* this class should be passed when evaluating an expression.
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* </p>
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* <p>
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* An instance of this class includes the context against which resolution will
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* happen
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* </p>
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*
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* @since 2.0
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* @deprecated As of JSP 2.1, replaced by javax.el.ELResolver
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*/
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@SuppressWarnings("dep-ann")
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// TCK signature test fails with annotation
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public interface VariableResolver {
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/**
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* Resolves the specified variable. Returns null if the variable is not
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* found.
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*
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* @param pName
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* the name of the variable to resolve
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* @return the result of the variable resolution
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* @throws ELException
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* if a failure occurred while trying to resolve the given
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* variable
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*/
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public Object resolveVariable(String pName) throws ELException;
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}
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