wt.inf.sharing
Class DataSharingHelper

java.lang.Object
  wt.inf.sharing.DataSharingHelper

All Implemented Interfaces:

Externalizable, Serializable

public class DataSharingHelper

extends Object

implements Externalizable

Supported API: false

Extendable: false

See Also:

Serialized Form

Nested Class Summary

private static class

DataSharingHelper.ShareableClasses

Field Summary

static int	BOTH Constant to be used for retrieval of shares, both enabled and disabled.
private static String	CLASSNAME
static long	EXTERNALIZATION_VERSION_UID
static int	IS_DISABLED Constant to be used for retrieval of only disabled shares.
static int	IS_ENABLED Constant to be used for retrieval of only enabled shares.
protected static long	OLD_FORMAT_VERSION_UID
private static String	RESOURCE
(package private) static long	serialVersionUID
static DataSharingService	service Supported API: false
private static String	SHAREABLE_CLASSES_FILE
private static boolean	VERBOSE

Constructor Summary

DataSharingHelper()

Method Summary

static boolean	contains(WTContainerRef container_ref, Persistable obj) Determines if a database object belongs to a given container.
static WTContainerRef	getContainerReference(Persistable obj) Returns the container of the object.
static ObjectIdentifier	getOid(Object object) Returns object's associated oid.
static String	getOidString(Object object) Returns String representation of the object's oid (debugging).
static Set	getShareableClasses() Returns the Set of classes that are shareable.
protected static boolean	isShareable(Object object)
void	readExternal(ObjectInput input) Reads the non-transient fields of this class from an external source.
private boolean	readOldVersion(ObjectInput input, long readSerialVersionUID, boolean passThrough, boolean superDone) Reads the non-transient fields of this class from an external source, which is not the current version.
protected boolean	readVersion(DataSharingHelper thisObject, ObjectInput input, long readSerialVersionUID, boolean passThrough, boolean superDone) Reads the non-transient fields of this class from an external source.
static String	showAdHocAcl(Object object) Returns a String representation of the ad hoc acl contained in the object.
void	writeExternal(ObjectOutput output) Writes the non-transient fields of this class to an external source.

Methods inherited from class java.lang.Object

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

Field Detail

RESOURCE

private static final String RESOURCE

See Also:

Constant Field Values

CLASSNAME

private static final String CLASSNAME

BOTH

public static final int BOTH

Constant to be used for retrieval of shares, both enabled and disabled.

Supported API: false

See Also:

Constant Field Values

IS_ENABLED

public static final int IS_ENABLED

Constant to be used for retrieval of only enabled shares.

Supported API: false

See Also:

Constant Field Values

IS_DISABLED

public static final int IS_DISABLED

Constant to be used for retrieval of only disabled shares.

Supported API: false

See Also:

Constant Field Values

service

public static final DataSharingService service

Supported API: false

serialVersionUID

static final long serialVersionUID

See Also:

Constant Field Values

EXTERNALIZATION_VERSION_UID

public static final long EXTERNALIZATION_VERSION_UID

See Also:

Constant Field Values

OLD_FORMAT_VERSION_UID

protected static final long OLD_FORMAT_VERSION_UID

See Also:

Constant Field Values

VERBOSE

private static final boolean VERBOSE

SHAREABLE_CLASSES_FILE

private static final String SHAREABLE_CLASSES_FILE

Constructor Detail

DataSharingHelper

public DataSharingHelper()

Method Detail

writeExternal

public void writeExternal(ObjectOutput output)
                   throws IOException

Writes the non-transient fields of this class to an external source.

Supported API: false

Specified by:

writeExternal in interface Externalizable

Parameters:

output -

Throws:

IOException

readExternal

public void readExternal(ObjectInput input)
                  throws IOException,
                         ClassNotFoundException

Reads the non-transient fields of this class from an external source.

Supported API: false

Specified by:

readExternal in interface Externalizable

Parameters:

input -

Throws:

IOException

ClassNotFoundException

readVersion

protected boolean readVersion(DataSharingHelper thisObject,
                              ObjectInput input,
                              long readSerialVersionUID,
                              boolean passThrough,
                              boolean superDone)
                       throws IOException,
                              ClassNotFoundException

Reads the non-transient fields of this class from an external source.

Supported API: false

Parameters:

thisObject -

input -

readSerialVersionUID -

passThrough -

superDone -

Returns:

boolean

Throws:

IOException

ClassNotFoundException

readOldVersion

private boolean readOldVersion(ObjectInput input,
                               long readSerialVersionUID,
                               boolean passThrough,
                               boolean superDone)
                        throws IOException,
                               ClassNotFoundException

Reads the non-transient fields of this class from an external source, which is not the current version.

Parameters:

input -

readSerialVersionUID -

passThrough -

superDone -

Returns:

boolean

Throws:

IOException

ClassNotFoundException

getContainerReference

public static WTContainerRef getContainerReference(Persistable obj)
                                            throws WTException

Returns the container of the object. If the object is not in a container returns 'null'.

An object may be contained in a container directly (if it implements WTContained or is in a domain that is associated to a container.

Supported API: false

Parameters:

obj -

Returns:

WTContainerRef

Throws:

WTException

contains

public static boolean contains(WTContainerRef container_ref,
                               Persistable obj)
                        throws WTException

Determines if a database object belongs to a given container.

Supported API: false

Parameters:

container_ref -

obj -

Returns:

boolean

Throws:

WTException

getShareableClasses

public static Set getShareableClasses()
                               throws WTException

Returns the Set of classes that are shareable. This can be used to optimize queries for shared objects. Use DataSharingService.isShareable(Persistable) to determine if a given Persistable instance is shareable.

Supported API: false

Returns:

Set

Throws:

WTException

showAdHocAcl

public static String showAdHocAcl(Object object)
                           throws WTException

Returns a String representation of the ad hoc acl contained in the object.

Throws:

WTException

getOid

public static ObjectIdentifier getOid(Object object)

Returns object's associated oid. Accepts not only Persistable as argument but also ObjectReference and ObjectIdentifier objects. Returns 'null' if object is null.

getOidString

public static String getOidString(Object object)

Returns String representation of the object's oid (debugging).

isShareable

protected static boolean isShareable(Object object)
                              throws WTException

Throws:

WTException