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The Java Data Objects API (JDO) : a standard interface-based Java model abstraction of persistence, developed by the JCP.

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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 javax.jdo.metadata;

/**
 * Represents details of a collection in a field/property in a class.
 * @since 3.0
 */
public interface CollectionMetadata extends Metadata {
    /**
     * Method to set the name of the element type.
     * @param type Name of the element type
     * @return This metadata object
     */
    CollectionMetadata setElementType(String type);

    /**
     * Accessor for the element type.
     * @return The element type
     */
    String getElementType();

    /**
     * Method to set whether the element is embedded.
     * @param val Whether it is embedded
     * @return This metadata object
     */
    CollectionMetadata setEmbeddedElement(boolean val);

    /**
     * Accessor for whether the element is embedded.
     * @return whether the element is embedded
     */
    Boolean getEmbeddedElement();

    /**
     * Method to set whether the element is serialised.
     * @param val Whether it is serialised
     * @return This metadata object
     */
    CollectionMetadata setSerializedElement(boolean val);

    /**
     * Accessor for whether the element is serialised.
     * @return whether the element is serialised
     */
    Boolean getSerializedElement();

    /**
     * Method to set whether the element is dependent.
     * @param val Whether it is dependent
     * @return This metadata object
     */
    CollectionMetadata setDependentElement(boolean val);

    /**
     * Accessor for whether the element is dependent
     * @return whether the element is dependent
     */
    Boolean getDependentElement();
}