Package com.google.cloud.spanner.connection

Class PartitionId

java.lang.Object

com.google.cloud.spanner.connection.PartitionId

All Implemented Interfaces:

Serializable

public final class PartitionId
extends Object
implements Serializable

Contains a reference to a BatchTransactionId and a Partition. The combination of these two are needed to execute a partition of a partitioned query on a Connection. A PartitionId can safely be given to a different connection and/or host to be executed there.

See Also:

• Serialized Form

Method Summary

Modifier and Type	Method	Description
static PartitionId	decodeFromString(String id)	Deserializes a string representation of a PartitionId.
static String	encodeToString(BatchTransactionId transactionId, Partition partition)
boolean	equals(Object o)
Partition	getPartition()
BatchTransactionId	getTransactionId()
int	hashCode()

Methods inherited from class java.lang.Object

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

Method Details

decodeFromString

public static PartitionId decodeFromString(String id)

Deserializes a string representation of a PartitionId. The string must have been created with the encodeToString(BatchTransactionId, Partition) method.

encodeToString

public static String encodeToString(BatchTransactionId transactionId,
 Partition partition)

Returns:

A string-encoded version of this PartitionId. This encoded version can be sent to any other Connection to be executed there, including connections on different hosts than the current host.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getTransactionId

public BatchTransactionId getTransactionId()

getPartition

public Partition getPartition()