org.apache.hadoop.hive.common

Class MaterializationSnapshot

java.lang.Object

org.apache.hadoop.hive.common.MaterializationSnapshot

public class MaterializationSnapshot
extends Object

Class to store snapshot data of Materialized view source tables. The data represents the state of the source tables when the view was created/last rebuilt.

Constructor Summary

Constructors

Constructor and Description
MaterializationSnapshot(Map<String,SnapshotContext> tableSnapshots)
MaterializationSnapshot(String validTxnList)

Method Summary

Modifier and Type	Method and Description
String	asJsonString() Returns the json representation of this object.
static MaterializationSnapshot	fromJson(String jsonString)
Map<String,SnapshotContext>	getTableSnapshots() Gets the snapshotIds of the MV source tables when the MV was created/last rebuilt
String	getValidTxnList() Gets ValidTxnWriteIdList of the MV source tables when the MV was created/last rebuilt
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

MaterializationSnapshot

public MaterializationSnapshot(String validTxnList)

MaterializationSnapshot

public MaterializationSnapshot(Map<String,SnapshotContext> tableSnapshots)

Method Detail

fromJson

public static MaterializationSnapshot fromJson(String jsonString)

asJsonString

public String asJsonString()

Returns the json representation of this object.

Returns:

String containing a json.

toString

public String toString()

Overrides:

toString in class Object

getValidTxnList

public String getValidTxnList()

Gets ValidTxnWriteIdList of the MV source tables when the MV was created/last rebuilt

Returns:

String representation of ValidTxnWriteIdList or null if all source tables are non-native.

getTableSnapshots

public Map<String,SnapshotContext> getTableSnapshots()

Gets the snapshotIds of the MV source tables when the MV was created/last rebuilt

Returns:

Map of snapshotIds where the key is the fully qualified name of the table and the values is the String representation of snapshotId or null if all tables are native ACID