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Object mapper for the DataStax CQL Java Driver.

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/*
 * Copyright (C) 2012-2017 DataStax Inc.
 *
 * 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
 *
 * 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 com.datastax.driver.mapping;

import java.util.Set;

/**
 * A strategy to determine which properties are transient, and which aren't.
 * 
 * Transient properties will be ignored, whereas non-transient
 * ones will be mapped.
 */
public enum PropertyTransienceStrategy {

    /**
     * This strategy adopts a permissive, opt-out approach that
     * will consider a property to be non-transient by default, unless:
     * 

     * The property is annotated with {@link com.datastax.driver.mapping.annotations.Transient @Transient};
     * The corresponding field is non-null and is marked with the keyword {@code transient};
     * The property name has been explicitly black-listed (see {@link DefaultPropertyMapper#setTransientPropertyNames(Set)}).
     * 
     */
    OPT_OUT,

    /**
     * This strategy adopts a conservative, opt-in approach that
     * only considers a property to be non-transient if it is explicitly annotated
     * with one of the following annotations:
     * 
     * {@link com.datastax.driver.mapping.annotations.Column Column}
     * {@link com.datastax.driver.mapping.annotations.Computed Computed}
     * {@link com.datastax.driver.mapping.annotations.ClusteringColumn ClusteringColumn}
     * {@link com.datastax.driver.mapping.annotations.Frozen Frozen}
     * {@link com.datastax.driver.mapping.annotations.FrozenKey FrozenKey}
     * {@link com.datastax.driver.mapping.annotations.FrozenValue FrozenValue}
     * {@link com.datastax.driver.mapping.annotations.PartitionKey PartitionKey}
     * {@link com.datastax.driver.mapping.annotations.Field Field}
     * 
     */
    OPT_IN

}