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The Adobe Experience Manager SDK

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/*
 * 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.sling.api.resource;

import org.osgi.annotation.versioning.ConsumerType;

/**
 * The ModifiableValueMap is an extension
 * of the {@link ValueMap} which allows to modify and
 * persist properties. All changes to this map are
 * stored in the transient layer of the resource resolver
 * or more precisely in the transient layer of the
 * resource provider managing this resource.
 * 
 * Once {@link ResourceResolver#commit()} is called, the
 * changes are finally persisted.
 * 

 * The modifiable value map is only changeable through
 * one of these methods
 * 

 *  {@link #put(Object, Object)}
 *  {@link #putAll(java.util.Map)}
 *  {@link #remove(Object)}
 *  {@link #replace(Object, Object)}
 *  {@link #replace(Object, Object, Object)}
 *  {@link #replaceAll(java.util.function.BiFunction)}
 *  {@link #compute(Object, java.util.function.BiFunction)}
 *  {@link #computeIfAbsent(Object, java.util.function.Function)}
 *  {@link #computeIfPresent(Object, java.util.function.BiFunction)}
 *  {@link #merge(Object, Object, java.util.function.BiFunction)}
 * 
 * 
 * The map is not modifiable through the collections provided
 * by
 * 

 *  {@link #entrySet()}
 *  {@link #keySet()}
 *  {@link #values()}
 * 
 * And it can't be modified by these methods:
 * 
 *  {@link #clear()}
 * 
 * 
 *
 * A modifiable value map should value {@link ResourceResolver#PROPERTY_RESOURCE_TYPE}
 * to set the resource type of a resource.
 * 
 * A modifiable value map must not support deep writes. A call of a modification method
 * with a path should result in an IllegalArgumentException.
 *
 * @since 2.2  (Sling API Bundle 2.2.0)
 */
@ConsumerType
public interface ModifiableValueMap extends ValueMap {

    // just a marker
}