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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 com.gemstone.gemfire.cache;

import com.gemstone.gemfire.internal.cache.FixedPartitionAttributesImpl;

/**
 * Composite date type used to distribute the attributes for a fixed partition.
 * 
 * 
 * {@link com.gemstone.gemfire.cache.PartitionAttributes#getFixedPartitionAttributes()}
 * returns all fixed partitions in Partitioned Region attributes. 
 * {@link com.gemstone.gemfire.cache.PartitionAttributesFactory#addFixedPartitionAttributes(FixedPartitionAttributes)}
 * configures FixedPartitionAttributes in
 * PartitionedRegionAttributes 
 * 
 * @see com.gemstone.gemfire.cache.PartitionAttributes
 * @see com.gemstone.gemfire.cache.PartitionAttributesFactory
 * 
 * @author kbachhav
 * @since 6.6
 */

public abstract class FixedPartitionAttributes {
  
  private final static boolean DEFAULT_PRIMARY_STATUS = false;
  
  private final static int DEFAULT_NUM_BUCKETS = 1;

  /**
   * Creates an instance of FixedPartitionAttributes.
   * 
   * @param name
   *          Name of the fixed partition.
   */
  final public static FixedPartitionAttributes createFixedPartition(String name) {
    return new FixedPartitionAttributesImpl().setPartitionName(name).isPrimary(
        DEFAULT_PRIMARY_STATUS).setNumBuckets(DEFAULT_NUM_BUCKETS);
  }

  /**
   * Creates an instance of FixedPartitionAttributes.
   * 
   * @param name
   *          Name of the fixed partition.
   * @param isPrimary
   *          True if this member is the primary for the partition.
   */
  final public static FixedPartitionAttributes createFixedPartition(
      String name, boolean isPrimary) {
    return new FixedPartitionAttributesImpl().setPartitionName(name).isPrimary(
        isPrimary).setNumBuckets(DEFAULT_NUM_BUCKETS);
  }

  /**
   * Creates an instance of FixedPartitionAttributes.
   * 
   * @param name
   *          Name of the fixed partition.
   * @param isPrimary
   *          True if this member is the primary for the partition.
   * @param numBuckets
   *          Number of buckets allowed for the partition.
   */
  final public static FixedPartitionAttributes createFixedPartition(
      String name, boolean isPrimary, int numBuckets) {
    return new FixedPartitionAttributesImpl().setPartitionName(name).isPrimary(
        isPrimary).setNumBuckets(numBuckets);
  }

  /**
   * Creates an instance of FixedPartitionAttributes.
   * 
   * @param name
   *          Name of the fixed partition.
   * @param numBuckets
   *          Number of buckets allowed for the partition.
   */
  final public static FixedPartitionAttributes createFixedPartition(
      String name, int numBuckets) {
    return new FixedPartitionAttributesImpl().setPartitionName(name).isPrimary(
        DEFAULT_PRIMARY_STATUS).setNumBuckets(numBuckets);
  }

  /**
   * Returns the name of the fixed partition.
   */
  public abstract String getPartitionName();

  /**
   * Returns whether this member is the primary for the partition.
   * 
   * @return True if this member is the primary, false otherwise.
   */
  public abstract boolean isPrimary();

  /**
   * Returns the number of buckets allowed for the partition.
   */
  public abstract int getNumBuckets();
}