org.apache.openjpa.slice
Class SliceImplHelper

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

public class SliceImplHelper
extends Object

Utility methods to determine the target slices for a persistence capable instance by calling back to user-specified distribution policy.

Author:

Pinaki Poddar

Constructor Summary

SliceImplHelper()

Method Summary

static SliceInfo	getSliceInfo(OpenJPAStateManager sm) Gets the assigned slice information, if any, from the given StateManager.
static SliceInfo	getSlicesByPolicy(Object pc, DistributedConfiguration conf, Object ctx) Gets the target slices by calling user-specified DistributionPolicy or ReplicationPolicy depending on whether the given instance is replicated.
static SliceInfo	getSlicesByPolicy(OpenJPAStateManager sm, DistributedConfiguration conf, Object ctx) Gets the target slices for the given StateManager.
static boolean	isReplicated(Object pc, OpenJPAConfiguration conf) Affirms if the given instance be replicated to multiple slices.
static boolean	isReplicated(OpenJPAStateManager sm) Affirms if the given instance be replicated to multiple slices.
static boolean	isSliceAssigned(OpenJPAStateManager sm) Affirms if the given StateManager has an assigned slice.

Methods inherited from class java.lang.Object

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

Constructor Detail

SliceImplHelper

public SliceImplHelper()

Method Detail

getSlicesByPolicy

public static SliceInfo getSlicesByPolicy(Object pc,
                                          DistributedConfiguration conf,
                                          Object ctx)

Gets the target slices by calling user-specified DistributionPolicy or ReplicationPolicy depending on whether the given instance is replicated.

getSlicesByPolicy

public static SliceInfo getSlicesByPolicy(OpenJPAStateManager sm,
                                          DistributedConfiguration conf,
                                          Object ctx)

Gets the target slices for the given StateManager.

isReplicated

public static boolean isReplicated(Object pc,
                                   OpenJPAConfiguration conf)

Affirms if the given instance be replicated to multiple slices.

isReplicated

public static boolean isReplicated(OpenJPAStateManager sm)

Affirms if the given instance be replicated to multiple slices.

isSliceAssigned

public static boolean isSliceAssigned(OpenJPAStateManager sm)

Affirms if the given StateManager has an assigned slice.

getSliceInfo

public static SliceInfo getSliceInfo(OpenJPAStateManager sm)

Gets the assigned slice information, if any, from the given StateManager.