Package org.apache.openjpa.slice

Class SlicePersistence

java.lang.Object

org.apache.openjpa.slice.SlicePersistence

public class SlicePersistence
extends Object

A helper to determine the slice identifier of an instance.

Author:

Pinaki Poddar

Field Summary

Fields

Modifier and Type	Field	Description
static final String	HINT_TARGET	The key for setting the Query hints.

Constructor Summary

Constructors

Constructor	Description
SlicePersistence()

Method Summary

Modifier and Type	Method	Description
static String	getSlice(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(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 Details

HINT_TARGET

public static final 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 Details

SlicePersistence

public SlicePersistence()

Method Details

getSlice

public static String getSlice(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(Object obj)

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