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java.lang.Objectorg.apache.openjpa.util.ArrayStateImage
public class ArrayStateImage
Utilities for dealing with a simple state image consisting of an
 Object[] of field values with one extra index containing a
 BitSet of loaded fields. This simplistic state image might be used
 for optimistic versioning.
| Constructor Summary | |
|---|---|
| ArrayStateImage() | |
| Method Summary | |
|---|---|
| static java.lang.Object[] | clone(java.lang.Object[] state)Clone a state array. | 
| static java.util.BitSet | getLoaded(java.lang.Object[] state)Get the loaded mask from a state image. | 
| static boolean | isImage(java.lang.Object obj)Return true if the given version object appears to be an array state image. | 
| static java.lang.Object[] | newImage(int numFields)Create a new state image for the given number of fields. | 
| static boolean | sameVersion(java.lang.Object[] state1,
            java.lang.Object[] state2)Return whether the given images are equivalent from an optimistic locking perspective. | 
| static void | setLoaded(java.lang.Object[] state,
          java.util.BitSet loaded)Set the loaded mask into a state image. | 
| Methods inherited from class java.lang.Object | 
|---|
| clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait | 
| Constructor Detail | 
|---|
public ArrayStateImage()
| Method Detail | 
|---|
public static java.lang.Object[] newImage(int numFields)
public static boolean isImage(java.lang.Object obj)
public static java.util.BitSet getLoaded(java.lang.Object[] state)
public static void setLoaded(java.lang.Object[] state,
                             java.util.BitSet loaded)
public static java.lang.Object[] clone(java.lang.Object[] state)
public static boolean sameVersion(java.lang.Object[] state1,
                                  java.lang.Object[] state2)
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