/**
    * Copyright 2005-2012 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.rice.kew.api.document.attribute;
  
  import javax.xml.bind.annotation.XmlAccessType;
  import javax.xml.bind.annotation.XmlAccessorType;
  import javax.xml.bind.annotation.XmlElement;
  import javax.xml.bind.annotation.XmlRootElement;
  import javax.xml.bind.annotation.XmlType;
  import java.math.BigInteger;
  
  /**
   * A document attribute which contains integer data.  Construct instances of {@code DocumentAttributeInteger} using
   * it's builder or the {@link DocumentAttributeFactory}.
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  @XmlRootElement(name = DocumentAttributeInteger.Constants.ROOT_ELEMENT_NAME)
  @XmlAccessorType(XmlAccessType.NONE)
  @XmlType(name = DocumentAttributeInteger.Constants.TYPE_NAME, propOrder = {
      DocumentAttributeInteger.Elements.VALUE
  })
  public final class DocumentAttributeInteger extends DocumentAttribute {
  
      @XmlElement(name = Elements.VALUE, required = false)
      private final BigInteger value;
  
      @SuppressWarnings("unused")
      private DocumentAttributeInteger() {
          this.value = null;
      }
  
      private DocumentAttributeInteger(Builder builder) {
          super(builder.getName());
          this.value = builder.getValue();
      }
  
      @Override
      public BigInteger getValue() {
          return value;
      }
  
      @Override
      public DocumentAttributeDataType getDataType() {
          return DocumentAttributeDataType.INTEGER;
      }
  
      /**
       * A builder implementation which allows for construction of a {@code DocumentAttributeInteger}.
       */
      public static final class Builder extends AbstractBuilder<BigInteger> {
  
          private Builder(String name) {
              super(name);
          }
  
          /**
           * Create a builder for the document attribute using the given attribute name.
           *
           * @param name the name of the document attribute which should be built by this builder, should never be a
           * null or blank value
           * @return a builder instance initialized with the given attribute name
           */
          public static Builder create(String name) {
              return new Builder(name);
          }
  
          @Override
          public DocumentAttributeDataType getDataType() {
              return DocumentAttributeDataType.INTEGER;
          }
  
          @Override
          public DocumentAttributeInteger build() {
              return new DocumentAttributeInteger(this);
          }
  
      }
  
      /**
       * Defines some internal constants used on this class.
       */
      static class Constants {
          final static String ROOT_ELEMENT_NAME = "documentAttributeInteger";
          final static String TYPE_NAME = "DocumentAttributeIntegerType";
      }
 
     /**
      * A private class which exposes constants which define the XML element names to use when this object is marshalled to XML.
      */
     static class Elements {
         final static String VALUE = "value";
     }
 
 }