org.springframework.integration.expression.ExpressionSource.java Source code

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Here is the source code for org.springframework.integration.expression.ExpressionSource.java

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/*
 * Copyright 2002-2019 the original author or authors.
 *
 * Licensed 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
 *
 *      https://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 "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.integration.expression;

import java.util.Locale;

import org.springframework.expression.Expression;
import org.springframework.lang.Nullable;

/**
 * Strategy interface for retrieving Expressions.
 *
 * @author Mark Fisher
 * @author Gary Russell
 *
 * @since 2.0
 */
@FunctionalInterface
public interface ExpressionSource {

    @Nullable
    Expression getExpression(String key, Locale locale);

}