|
1
56
57 package org.objectstyle.cayenne.access.util;
58
59 import java.util.ArrayList  ;
60 import java.util.HashMap ;
61 import java.util.Iterator ;
62 import java.util.List ;
63 import java.util.Map ;
64
65 import org.objectstyle.cayenne.access.DataNode;
66 import org.objectstyle.cayenne.map.ObjEntity;
67 import org.objectstyle.cayenne.query.Query;
68
69
73 public class DataNodeCommitHelper {
74 public static final int INSERT = 1;
75 public static final int UPDATE = 2;
76 public static final int DELETE = 3;
77
78 protected DataNode node;
79 protected List objEntitiesForInsert = new ArrayList ();
80 protected List objEntitiesForDelete = new ArrayList ();
81 protected List objEntitiesForUpdate = new ArrayList ();
82 protected Map flattenedInsertQueries = new HashMap ();
83 protected Map flattenedDeleteQueries = new HashMap ();
84 protected List queries = new ArrayList ();
85
86
90 public static DataNodeCommitHelper getHelperForNode(
91 List helpers,
92 DataNode node) {
93
94 DataNodeCommitHelper helper = null;
95 Iterator it = helpers.iterator();
96 while (it.hasNext()) {
97 DataNodeCommitHelper itHelper = (DataNodeCommitHelper) it.next();
98 if (itHelper.getNode() == node) {
99 helper = itHelper;
100 break;
101 }
102 }
103
104 if (helper == null) {
105 helper = new DataNodeCommitHelper(node);
106 helpers.add(helper);
107 }
108
109 return helper;
110 }
111
112 public DataNodeCommitHelper(DataNode node) {
113 this.node = node;
114 }
115
116
117 public void addToEntityList(ObjEntity ent, int listType) {
118 switch (listType) {
119 case 1 :
120 objEntitiesForInsert.add(ent);
121 break;
122 case 2 :
123 objEntitiesForUpdate.add(ent);
124 break;
125 case 3 :
126 objEntitiesForDelete.add(ent);
127 break;
128 }
129 }
130
131 public void addToQueries(Query q) {
132 queries.add(q);
133 }
134
135
138 public DataNode getNode() {
139 return node;
140 }
141
142
145 public List getQueries() {
146 return queries;
147 }
148
152 public List getObjEntitiesForDelete() {
153 return objEntitiesForDelete;
154 }
155
156
160 public List getObjEntitiesForInsert() {
161 return objEntitiesForInsert;
162 }
163
164
168 public List getObjEntitiesForUpdate() {
169 return objEntitiesForUpdate;
170 }
171
172 public Map getFlattenedDeleteQueries() {
173 return flattenedDeleteQueries;
174 }
175
176 public Map getFlattenedInsertQueries() {
177 return flattenedInsertQueries;
178 }
179 }
180 |
Popular Tags |
Java API By Example, From Geeks To Geeks.