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java.lang.Objectcom.google.appengine.api.datastore.TransactionOptions
public final class TransactionOptions
Describes options for transactions, passed at transaction creation time.
multipleEntityGroups
is a boolean that enables or disables the
use of multiple entity groups in a single transaction.
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(allowMultipleEntityGroups(true));
Nested Class Summary | |
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static class |
TransactionOptions.Builder
Contains static creation methods for TransactionOptions . |
Method Summary | |
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java.lang.Boolean |
allowsMultipleEntityGroups()
|
TransactionOptions |
clearMultipleEntityGroups()
|
boolean |
equals(java.lang.Object obj)
|
int |
hashCode()
|
TransactionOptions |
multipleEntityGroups(boolean enable)
Enable or disable the use of multiple entity groups in a single transaction. |
java.lang.String |
toString()
|
Methods inherited from class java.lang.Object |
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getClass, notify, notifyAll, wait, wait, wait |
Method Detail |
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public TransactionOptions multipleEntityGroups(boolean enable)
enable
- true to allow multiple entity groups in a transaction, false to
restrict transactions to a single entity group.
this
(for chaining)public TransactionOptions clearMultipleEntityGroups()
public java.lang.Boolean allowsMultipleEntityGroups()
true
if multiple entity groups are allowed in the
transaction, false
if they are not allowed, or null
if
the setting was not provided.public int hashCode()
hashCode
in class java.lang.Object
public boolean equals(java.lang.Object obj)
equals
in class java.lang.Object
public java.lang.String toString()
toString
in class java.lang.Object
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