/**

  * Copyright 2005-2011 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.rule;

 import java.io.Serializable;

 import java.util.Collection;

 import javax.xml.bind.annotation.XmlAccessType;

 import javax.xml.bind.annotation.XmlAccessorType;

 import javax.xml.bind.annotation.XmlAnyElement;

 import javax.xml.bind.annotation.XmlElement;

 import javax.xml.bind.annotation.XmlRootElement;

 import javax.xml.bind.annotation.XmlType;

 import org.kuali.rice.core.api.CoreConstants;

 import org.kuali.rice.core.api.delegation.DelegationType;

 import org.kuali.rice.core.api.mo.AbstractDataTransferObject;

 import org.kuali.rice.core.api.mo.ModelBuilder;

 import org.kuali.rice.kew.api.KewApiConstants;

 import org.w3c.dom.Element;

 @XmlRootElement(name = RuleDelegation.Constants.ROOT_ELEMENT_NAME)

 @XmlAccessorType(XmlAccessType.NONE)

 @XmlType(name = RuleDelegation.Constants.TYPE_NAME, propOrder = {

     RuleDelegation.Elements.DELEGATION_TYPE,

     RuleDelegation.Elements.DELEGATION_RULE,

     CoreConstants.CommonElements.FUTURE_ELEMENTS

 })

 public final class RuleDelegation

     extends AbstractDataTransferObject

     implements RuleDelegationContract

 {

     @XmlElement(name = Elements.DELEGATION_TYPE, required = false)

     private final String delegationType;

     @XmlElement(name = Elements.DELEGATION_RULE, required = false)

     private final Rule delegationRule;

     @SuppressWarnings("unused")

     @XmlAnyElement

     private final Collection<Element> _futureElements = null;

     /**

      * Private constructor used only by JAXB.

      * 

      */

     private RuleDelegation() {

         this.delegationType = null;

         this.delegationRule = null;

     }

     private RuleDelegation(Builder builder) {

         this.delegationType = builder.getDelegationType() != null ? builder.getDelegationType().getCode() : null;

         this.delegationRule = builder.getDelegationRule() == null ? null : builder.getDelegationRule().build();

     }

     @Override

     public DelegationType getDelegationType() {

         return DelegationType.fromCode(this.delegationType);

     }

     @Override

     public Rule getDelegationRule() {

         return this.delegationRule;

     }

     /**

      * A builder which can be used to construct {@link RuleDelegation} instances.  Enforces the constraints of the {@link RuleDelegationContract}.

      * 

      */

     public final static class Builder

         implements Serializable, ModelBuilder, RuleDelegationContract

     {

         private DelegationType delegationType;

         private Rule.Builder delegationRule;

         private Builder() {

         }

         public static Builder create() {

             return new Builder();

         }

         public static Builder create(RuleDelegationContract contract) {

             if (contract == null) {

                 throw new IllegalArgumentException("contract was null");

             }

             Builder builder = create();

             builder.setDelegationType(contract.getDelegationType());

             if (contract.getDelegationRule() != null) {

                 builder.setDelegationRule(Rule.Builder.create(contract.getDelegationRule()));

             }

             return builder;

         }

         public RuleDelegation build() {

             return new RuleDelegation(this);

         }

         @Override

         public DelegationType getDelegationType() {

             return this.delegationType;

         }

         @Override

         public Rule.Builder getDelegationRule() {

             return this.delegationRule;

         }

         public void setDelegationType(DelegationType delegationType) {

             this.delegationType = delegationType;

         }

         public void setDelegationRule(Rule.Builder delegationRule) {

             this.delegationRule = delegationRule;

         }

     }

     /**

      * Defines some internal constants used on this class.

      * 

      */

     static class Constants {

         final static String ROOT_ELEMENT_NAME = "ruleDelegation";

         final static String TYPE_NAME = "RuleDelegationType";

     }

     /**

      * 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 DELEGATION_TYPE = "delegationType";

         final static String DELEGATION_RULE = "delegationRule";

     }

     public static class Cache {

         public static final String NAME = KewApiConstants.Namespaces.KEW_NAMESPACE_2_0 + "/" + RuleDelegation.Constants.TYPE_NAME;

     }

 }