com.google.appengine.api.datastore
Class TransactionOptions

java.lang.Object
  com.google.appengine.api.datastore.TransactionOptions

public final class TransactionOptions
extends java.lang.Object

Describes options for transactions, passed at transaction creation time.

XG is a boolean that enables or disables the use of cross-group transactions.

Notes on usage:
The recommended way to instantiate a TransactionsOptions object is to statically import TransactionOptions.Builder.* and invoke a static creation method followed by an instance mutator (if needed):

 import static com.google.appengine.api.datastore.TransactionOptions.Builder.*;

 ...

 datastoreService.beginTransaction(withXG(true));
 

Nested Class Summary

static class

TransactionOptions.Builder Contains static creation methods for TransactionOptions.

Method Summary

java.lang.Boolean	allowsMultipleEntityGroups() Deprecated.
TransactionOptions	clearMultipleEntityGroups() Deprecated.
TransactionOptions	clearXG() Return the cross-group transaction setting to default (disabled).
boolean	equals(java.lang.Object obj)
int	hashCode()
boolean	isXG()
TransactionOptions	multipleEntityGroups(boolean enable) Deprecated.
TransactionOptions	setXG(boolean enable) Enable or disable the use of cross-group transactions.
java.lang.String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Method Detail

setXG

public TransactionOptions setXG(boolean enable)

Enable or disable the use of cross-group transactions.

Parameters:

enable - true to cross-group transactions, false to restrict transactions to a single entity group.

Returns:

this (for chaining)

clearXG

public TransactionOptions clearXG()

Return the cross-group transaction setting to default (disabled).

isXG

public boolean isXG()

Returns:

true if cross-group transactions are allowed, false if they are not allowed.

multipleEntityGroups

@Deprecated
public TransactionOptions multipleEntityGroups(boolean enable)

Deprecated.

See Also:

#setXG}.

clearMultipleEntityGroups

@Deprecated
public TransactionOptions clearMultipleEntityGroups()

Deprecated.

See Also:

#clearXG}.

allowsMultipleEntityGroups

@Deprecated
public java.lang.Boolean allowsMultipleEntityGroups()

Deprecated.

See Also:

#isXG}.

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object