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1 package org.ofbiz.entity.condition;
2
3 import java.util.ArrayList  ;
4 import java.util.Collection ;
5 import java.util.Comparator ;
6 import java.util.Iterator ;
7 import java.util.List ;
8
9 import org.ofbiz.entity.GenericEntity;
10 import org.ofbiz.entity.GenericModelException;
11 import org.ofbiz.entity.config.DatasourceInfo;
12 import org.ofbiz.entity.model.ModelEntity;
13
14 public class OrderByList implements Comparator {
15 protected List orderByList = new ArrayList ();
16
17 public OrderByList() {
18 }
19
20 public OrderByList(Collection orderByList) {
21 addOrderBy(orderByList);
22 }
23
24 public void addOrderBy(Collection orderByList) {
25 Iterator it = orderByList.iterator();
26 while (it.hasNext()) {
27 addOrderBy(OrderByItem.parse(it.next()));
28 }
29 }
30
31 public void addOrderBy(String text) {
32 addOrderBy(OrderByItem.parse(text));
33 }
34
35 public void addOrderBy(EntityConditionValue value) {
36 addOrderBy(value, false);
37 }
38
39 public void addOrderBy(EntityConditionValue value, boolean descending) {
40 addOrderBy(new OrderByItem(value, descending));
41 }
42
43 public void addOrderBy(OrderByItem orderByItem) {
44 orderByList.add(orderByItem);
45 }
46
47 public void checkOrderBy(ModelEntity modelEntity) throws GenericModelException {
48 for (int i = 0; i < orderByList.size(); i++) {
49 OrderByItem orderByItem = (OrderByItem) orderByList.get(i);
50 orderByItem.checkOrderBy(modelEntity);
51 }
52 }
53
54 public String makeOrderByString(ModelEntity modelEntity, boolean includeTablenamePrefix, DatasourceInfo datasourceInfo) {
55 StringBuffer sb = new StringBuffer ();
56 makeOrderByString(sb, modelEntity, includeTablenamePrefix, datasourceInfo);
57 return sb.toString();
58 }
59
60 public void makeOrderByString(StringBuffer sb, ModelEntity modelEntity, boolean includeTablenamePrefix, DatasourceInfo datasourceInfo) {
61 if (!orderByList.isEmpty()) {
62 sb.append(" ORDER BY ");
63 }
64 for (int i = 0; i < orderByList.size(); i++) {
65 if (i != 0) sb.append(", ");
66 OrderByItem orderByItem = (OrderByItem) orderByList.get(i);
67 orderByItem.makeOrderByString(sb, modelEntity, includeTablenamePrefix, datasourceInfo);
68 }
69 }
70
71 public int compare(Object obj1, Object obj2) {
72 return compare((GenericEntity) obj1, (GenericEntity) obj2);
73 }
74
75 public int compare(GenericEntity entity1, GenericEntity entity2) {
76 int result = 0;
77 for (int i = 0; i < orderByList.size() && result == 0; i++) {
78 OrderByItem orderByItem = (OrderByItem) orderByList.get(i);
79 result = orderByItem.compare(entity1, entity2);
80 }
81 return result;
82 }
83
84 public boolean equals(java.lang.Object obj) {
85 if (!(obj instanceof OrderByList)) return false;
86 OrderByList that = (OrderByList) obj;
87 return orderByList.equals(that.orderByList);
88 }
89
90 public String toString() {
91 return makeOrderByString(null, false, null);
92 }
93 }
94 |
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