metamodel/src/main/java/org/apache/tamaya/metamodel/spi/ContextInitializer.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
 *  "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.apache.tamaya.metamodel.spi;

import org.apache.tamaya.metamodel.MetaContext;

/**
 * SPI interface for implementations of simple expression types for use within
 * {@link org.apache.tamaya.metamodel.MetaContext} getMeta-configuration entries.
 */
public interface ContextInitializer {

    /**
     * Get the expression id, which is the first part of a placeholder expression
     * ({@code ${expressionId:expression}}).
     * @param metaContext the neta context, not null..
     */
    void initializeContext(MetaContext metaContext);

}