svn commit: r1482005 - /ofbiz/trunk/framework/entity/src/org/ofbiz/entity/util/EntityUtil.java

[do...@apache.org]

Author: doogie
Date: Mon May 13 18:02:16 2013
New Revision: 1482005

URL: http://svn.apache.org/r1482005
Log:
FEATURE: Add getFirst/getOnly variants that take a collection.

Modified:
    ofbiz/trunk/framework/entity/src/org/ofbiz/entity/util/EntityUtil.java

Modified: ofbiz/trunk/framework/entity/src/org/ofbiz/entity/util/EntityUtil.java
URL: http://svn.apache.org/viewvc/ofbiz/trunk/framework/entity/src/org/ofbiz/entity/util/EntityUtil.java?rev=1482005&r1=1482004&r2=1482005&view=diff
==============================================================================
--- ofbiz/trunk/framework/entity/src/org/ofbiz/entity/util/EntityUtil.java (original)
+++ ofbiz/trunk/framework/entity/src/org/ofbiz/entity/util/EntityUtil.java Mon May 13 18:02:16 2013
@@ -69,6 +69,14 @@ public class EntityUtil {
     }
 
 
+    public static GenericValue getFirst(Collection<GenericValue> values) {
+        if (UtilValidate.isNotEmpty(values)) {
+            return values.iterator().next();
+        } else {
+            return null;
+        }
+    }
+
     public static GenericValue getFirst(List<GenericValue> values) {
         if (UtilValidate.isNotEmpty(values)) {
             return values.get(0);
@@ -77,6 +85,19 @@ public class EntityUtil {
         }
     }
 
+    public static GenericValue getOnly(Collection<GenericValue> values) {
+        if (UtilValidate.isNotEmpty(values)) {
+            Iterator<GenericValue> it = values.iterator();
+            GenericValue result = it.next();
+            if (it.hasNext()) {
+                throw new IllegalArgumentException("Passed List had more than one value.");
+            }
+            return result;
+        } else {
+            return null;
+        }
+    }
+
     public static GenericValue getOnly(List<GenericValue> values) {
         if (UtilValidate.isNotEmpty(values)) {
             if (values.size() == 1) {