/*

  * Copyright 2005-2007 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.engine.node;

 import java.io.Serializable;

 import java.util.ArrayList;

 import java.util.Iterator;

 import java.util.List;

 import javax.persistence.CascadeType;

 import javax.persistence.Column;

 import javax.persistence.Entity;

 import javax.persistence.FetchType;

 import javax.persistence.Id;

 import javax.persistence.JoinColumn;

 import javax.persistence.OneToMany;

 import javax.persistence.OneToOne;

 import javax.persistence.PrePersist;

 import javax.persistence.Table;

 import javax.persistence.Version;

 import org.hibernate.annotations.Cascade;

 import org.hibernate.annotations.Fetch;

 import org.hibernate.annotations.FetchMode;

 import org.kuali.rice.core.jpa.annotations.Sequence;

 import org.kuali.rice.core.util.OrmUtils;

 import org.kuali.rice.kew.service.KEWServiceLocator;

 /**

  * Represents a branch in the routing path of the document.

  * 

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 @Entity

 @Sequence(name="KREW_RTE_NODE_S",property="branchId")

 @Table(name="KREW_RTE_BRCH_T")

 public class Branch implements Serializable {

         private static final long serialVersionUID = 7164561979112939112L;

         @Id

         @Column(name="RTE_BRCH_ID")

         private Long branchId;

         @OneToOne(fetch=FetchType.EAGER)

         @JoinColumn(name="PARNT_ID")

         private Branch parentBranch;

         @Column(name="NM")

         private String name;

     @OneToMany(fetch=FetchType.EAGER,cascade={CascadeType.REMOVE,CascadeType.PERSIST,CascadeType.MERGE}, mappedBy="branch")

     @Cascade({org.hibernate.annotations.CascadeType.DELETE_ORPHAN})    

     @Fetch(value=FetchMode.SUBSELECT)

         private List<BranchState> branchState = new ArrayList<BranchState>();

 //          apache lazy list commented out due to not being serializable

 //    private List branchState = ListUtils.lazyList(new ArrayList(),

 //            new Factory() {

 //                                public Object create() {

 //                                        return new BranchState();

 //                                }

 //                        });

     @OneToOne(cascade={CascadeType.PERSIST})

         @JoinColumn(name="INIT_RTE_NODE_INSTN_ID")

         private RouteNodeInstance initialNode;

     @OneToOne

         @JoinColumn(name="SPLT_RTE_NODE_INSTN_ID")

         private RouteNodeInstance splitNode;

         @OneToOne(cascade={CascadeType.PERSIST,CascadeType.MERGE})

         @JoinColumn(name="JOIN_RTE_NODE_INSTN_ID")

         private RouteNodeInstance joinNode;

         @Version

         @Column(name="VER_NBR")

         private Integer lockVerNbr;

         public String getName() {

                 return name;

         }

         public void setName(String name) {

                 this.name = name;        

         }

     public RouteNodeInstance getSplitNode() {

         return splitNode;

     }

     public void setSplitNode(RouteNodeInstance splitNode) {

         this.splitNode = splitNode;

     }

     public RouteNodeInstance getInitialNode() {

                 return initialNode;

         }

         public void setInitialNode(RouteNodeInstance activeNode) {

                 this.initialNode = activeNode;

         }

         public Long getBranchId() {

                 return branchId;

         }

         public void setBranchId(Long branchId) {

                 this.branchId = branchId;

         }

         public RouteNodeInstance getJoinNode() {

                 return joinNode;

         }

         public void setJoinNode(RouteNodeInstance joinNode) {

                 this.joinNode = joinNode;

         }

         public Branch getParentBranch() {

                 return parentBranch;

         }

         public void setParentBranch(Branch parentBranch) {

                 this.parentBranch = parentBranch;

         }

     public BranchState getBranchState(String key) {

         for (Iterator iter = branchState.iterator(); iter.hasNext();) {

             BranchState branchState = (BranchState) iter.next();

             if (branchState.getKey().equals(key)) {

                 return branchState;

             }

         }

         return null;

     }

     public void addBranchState(BranchState state) {

         branchState.add(state);

         state.setBranch(this);

     }

     public List<BranchState> getBranchState() {

         return branchState;

     }

     public void setBranchState(List<BranchState> branchState) {

         this.branchState.clear();

         this.branchState.addAll(branchState);

             //this.branchState = branchState;

     }

     public BranchState getDocBranchState(int index){

             while (branchState.size() <= index) {

             branchState.add(new BranchState());

         }

         return (BranchState) branchState.get(index);

     }

         public Integer getLockVerNbr() {

         return lockVerNbr;

     }

     public void setLockVerNbr(Integer lockVerNbr) {

         this.lockVerNbr = lockVerNbr;

     }

     public String toString() {

         return "[Branch: branchId=" + branchId +

                       ", parentBranch=" + (parentBranch == null ? "null" : parentBranch.getBranchId()) +

                       "]";

     }

     @PrePersist

     public void beforeInsert(){

             OrmUtils.populateAutoIncValue(this, KEWServiceLocator.getEntityManagerFactory().createEntityManager());

     }    

 }