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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.phoenix.query;

import org.apache.phoenix.util.InstanceResolver;

/**
 * Manages providers that provide property policy for Phoenix.
 * 
 * Dependent modules may register their own implementations of the following using {@link java.util.ServiceLoader}:
 * 

 *     {@link PropertyPolicy}
 * 
 *
 * If a custom implementation is not registered, the default implementations will be used.
 *
 */
public class PropertyPolicyProvider {
    private static final PropertyPolicy DEFAULT_PROPERTY_POLICY = new PropertyPolicy.PropertyPolicyImpl();

    public static PropertyPolicy getPropertyPolicy(){
        return InstanceResolver.getSingleton(PropertyPolicy.class, DEFAULT_PROPERTY_POLICY);
    }
}