ExpressionInterpreter.java

/*
 * 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
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 * KIND, either express or implied. See the License for the
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 */
package org.apache.deltaspike.core.api.interpreter;

/**
 * Generic interface for evaluation of expressions, like the ones provided by
 * {@link org.apache.deltaspike.core.api.exclude.Exclude#onExpression()}.
 * 
 * @param <E> expression type
 * @param <R> result type
 */
public interface ExpressionInterpreter<E, R>
{
    /**
     * Evaluates the given expression and returns the result for it.
     *
     * @param expression expression to evaluate
     *
     * @return result of the evaluated expression
     */
    R evaluate(E expression);
}