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1
24
25 package org.ofbiz.entity.condition;
26
27 import java.util.ArrayList  ;
28 import java.util.Iterator ;
29 import java.util.List ;
30 import java.util.Map ;
31
32 import org.ofbiz.entity.GenericDelegator;
33 import org.ofbiz.entity.GenericEntity;
34 import org.ofbiz.entity.GenericModelException;
35 import org.ofbiz.entity.model.ModelEntity;
36
37
46 public class EntityJoinOperator extends EntityOperator {
47
48 protected boolean shortCircuitValue;
49
50 protected EntityJoinOperator(int id, String code, boolean shortCircuitValue) {
51 super(id, code);
52 this.shortCircuitValue = shortCircuitValue;
53 }
54
55 public void addSqlValue(StringBuffer sql, ModelEntity modelEntity, List entityConditionParams, boolean compat, Object lhs, Object rhs) {
56 sql.append('(');
57 sql.append(((EntityCondition) lhs).makeWhereString(modelEntity, entityConditionParams));
58 sql.append(' ');
59 sql.append(getCode());
60 sql.append(' ');
61 if (rhs instanceof EntityCondition) {
62 sql.append(((EntityCondition) rhs).makeWhereString(modelEntity, entityConditionParams));
63 } else {
64 addValue(sql, null, rhs, entityConditionParams);
65 }
66 sql.append(')');
67 }
68
69 public void addSqlValue(StringBuffer sql, ModelEntity modelEntity, List entityConditionParams, List conditionList) {
70 if (conditionList != null && conditionList.size() > 0) {
71 sql.append('(');
72 Iterator conditionIter = conditionList.iterator();
73 while (conditionIter.hasNext()) {
74 EntityCondition condition = (EntityCondition) conditionIter.next();
75 sql.append(condition.makeWhereString(modelEntity, entityConditionParams));
76 if (conditionIter.hasNext()) {
77 sql.append(' ');
78 sql.append(getCode());
79 sql.append(' ');
80 }
81 }
82 sql.append(')');
83 }
84 }
85
86 protected EntityCondition freeze(Object item) {
87 return ((EntityCondition) item).freeze();
88 }
89
90 public EntityCondition freeze(Object lhs, Object rhs) {
91 return new EntityExpr(freeze(lhs), this, freeze(rhs));
92 }
93
94 public EntityCondition freeze(List conditionList) {
95 List newList = new ArrayList (conditionList.size());
96 for (int i = 0; i < conditionList.size(); i++) {
97 EntityCondition condition = (EntityCondition) conditionList.get(i);
98 newList.add(condition.freeze());
99 }
100 return new EntityConditionList(newList, this);
101 }
102
103 public void visit(EntityConditionVisitor visitor, List conditionList) {
104 if (conditionList != null && conditionList.size() > 0) {
105 for (int i = 0; i < conditionList.size(); i++) {
106 visitor.visit(conditionList.get(i));
107 }
108 }
109 }
110
111 public void visit(EntityConditionVisitor visitor, Object lhs, Object rhs) {
112 ((EntityCondition) lhs).visit(visitor);
113 visitor.visit(rhs);
114 }
115
116 public boolean entityMatches(GenericEntity entity, Object lhs, Object rhs) {
117 return entityMatches(entity, (EntityCondition) lhs, (EntityCondition) rhs);
118 }
119
120 public Object eval(GenericEntity entity, EntityCondition lhs, EntityCondition rhs) {
121 return entityMatches(entity, lhs, rhs) ? Boolean.TRUE : Boolean.FALSE;
122 }
123
124 public boolean entityMatches(GenericEntity entity, EntityCondition lhs, EntityCondition rhs) {
125 if (lhs.entityMatches(entity)) return shortCircuitValue;
126 if (rhs.entityMatches(entity)) return shortCircuitValue;
127 return !shortCircuitValue;
128 }
129
130 public boolean entityMatches(GenericEntity entity, List conditionList) {
131 return mapMatches(entity.getDelegator(), entity, conditionList);
132 }
133
134 public Object eval(GenericDelegator delegator, Map map, Object lhs, Object rhs) {
135 return castBoolean(mapMatches(delegator, map, lhs, rhs));
136 }
137
138 public boolean mapMatches(GenericDelegator delegator, Map map, Object lhs, Object rhs) {
139 if (((EntityCondition) lhs).mapMatches(delegator, map)) return shortCircuitValue;
140 if (((EntityCondition) rhs).mapMatches(delegator, map)) return shortCircuitValue;
141 return !shortCircuitValue;
142 }
143
144 public Object eval(GenericDelegator delegator, Map map, List conditionList) {
145 return castBoolean(mapMatches(delegator, map, conditionList));
146 }
147
148 public boolean mapMatches(GenericDelegator delegator, Map map, List conditionList) {
149 if (conditionList != null && conditionList.size() > 0) {
150 for (int i = 0; i < conditionList.size(); i++) {
151 EntityCondition condition = (EntityCondition) conditionList.get(i);
152 if (condition.mapMatches(delegator, map) == shortCircuitValue) return shortCircuitValue;
153 }
154 }
155 return !shortCircuitValue;
156 }
157
158 public void validateSql(ModelEntity modelEntity, Object lhs, Object rhs) throws GenericModelException {
159 validateSql(modelEntity, (EntityCondition) lhs, (EntityCondition) rhs);
160 }
161
162 public void validateSql(ModelEntity modelEntity, EntityCondition lhs, EntityCondition rhs) throws GenericModelException {
163 lhs.checkCondition(modelEntity);
164 rhs.checkCondition(modelEntity);
165 }
166
167 public void validateSql(ModelEntity modelEntity, List conditionList) throws GenericModelException {
168 if (conditionList == null && conditionList.size() == 0)
169 throw new GenericModelException("Empty list for joining");
170 for (int i = 0; i < conditionList.size(); i++) {
171 Object condObj = conditionList.get(i);
172 if (!(condObj instanceof EntityCondition)) {
173 throw new GenericModelException("Object is not a valid EntityCondition [" + condObj.getClass().getName() + "]");
174 }
175 EntityCondition condition = (EntityCondition) condObj;
176 condition.checkCondition(modelEntity);
177 }
178 }
179 }
180 |
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