org.apache.openjpa.slice
Class SlicePersistence

java.lang.Object
  org.apache.openjpa.slice.SlicePersistence

public class SlicePersistence
extends java.lang.Object

A helper to determine the slice identifier of an instance.

Author:

Pinaki Poddar

Field Summary

static java.lang.String

HINT_TARGET The key for setting the Query hints.

Constructor Summary

SlicePersistence()

Method Summary

static java.lang.String	getSlice(java.lang.Object obj) Get the slice identifier for the given instance if it is a managed instance and has been assigned to a slice.
static boolean	isReplicated(java.lang.Object obj) Affirms if the given instance is replicated, provided the given instance is managed.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

HINT_TARGET

public static final java.lang.String HINT_TARGET

The key for setting the Query hints. The value is comma-separated Slice names. If the hint is specified then the query is executed only on the listed slices.

See Also:

Constant Field Values

Constructor Detail

SlicePersistence

public SlicePersistence()

Method Detail

getSlice

public static java.lang.String getSlice(java.lang.Object obj)

Get the slice identifier for the given instance if it is a managed instance and has been assigned to a slice. If the given instance is replicated across multiple slices then returns comma-separated list of slice names.

Returns:

name of the slice, if any. null otherwise.

isReplicated

public static boolean isReplicated(java.lang.Object obj)

Affirms if the given instance is replicated, provided the given instance is managed.