svn commit: r1461646 - /jackrabbit/trunk/jackrabbit-jcr-commons/src/main/java/org/apache/jackrabbit/value/ValueHelper.java

[md...@apache.org]

Author: mduerig
Date: Wed Mar 27 15:24:18 2013
New Revision: 1461646

URL: http://svn.apache.org/r1461646
Log:
JCR-3550: Methods for determining type of array of values

Modified:
    jackrabbit/trunk/jackrabbit-jcr-commons/src/main/java/org/apache/jackrabbit/value/ValueHelper.java

Modified: jackrabbit/trunk/jackrabbit-jcr-commons/src/main/java/org/apache/jackrabbit/value/ValueHelper.java
URL: http://svn.apache.org/viewvc/jackrabbit/trunk/jackrabbit-jcr-commons/src/main/java/org/apache/jackrabbit/value/ValueHelper.java?rev=1461646&r1=1461645&r2=1461646&view=diff
==============================================================================
--- jackrabbit/trunk/jackrabbit-jcr-commons/src/main/java/org/apache/jackrabbit/value/ValueHelper.java (original)
+++ jackrabbit/trunk/jackrabbit-jcr-commons/src/main/java/org/apache/jackrabbit/value/ValueHelper.java Wed Mar 27 15:24:18 2013
@@ -16,6 +16,8 @@
  */
 package org.apache.jackrabbit.value;
 
+import static javax.jcr.PropertyType.UNDEFINED;
+
 import org.apache.jackrabbit.util.Base64;
 import org.apache.jackrabbit.util.Text;
 import org.apache.jackrabbit.util.TransientFileFactory;
@@ -818,4 +820,29 @@ public class ValueHelper {
             return convert(value, type, factory);
         }
     }
+
+    /**
+     * Determine the {@link javax.jcr.PropertyType} of the passed values if all are of
+     * the same type.
+     *
+     * @param values array of values of the same type
+     * @return  {@link javax.jcr.PropertyType#UNDEFINED} if {@code values} is empty,
+     *          {@code values[0].getType()} otherwise.
+     * @throws javax.jcr.ValueFormatException  if not all {@code values} are of the same type
+     */
+    public static int getType(Value[] values) throws ValueFormatException {
+        int type = UNDEFINED;
+        for (Value value : values) {
+            if (value != null) {
+                if (type == UNDEFINED) {
+                    type = value.getType();
+                } else if (value.getType() != type) {
+                    throw new ValueFormatException(
+                            "All values of a multi-valued property must be of the same type");
+                }
+            }
+        }
+        return type;
+    }
+
 }