Package org.apache.drill.metastore.mongo.components.tables

Class TablesOperationTransformer

java.lang.Object

org.apache.drill.metastore.mongo.transform.OperationTransformer<TableMetadataUnit>

org.apache.drill.metastore.mongo.components.tables.TablesOperationTransformer

public class TablesOperationTransformer
extends OperationTransformer<TableMetadataUnit>

Metastore Tables component operations transformer that provides mechanism to convert TableMetadataUnit data to Metastore overwrite / delete operations.

Field Summary

Fields inherited from class org.apache.drill.metastore.mongo.transform.OperationTransformer

context

Constructor Summary

Constructors

Constructor	Description
TablesOperationTransformer(MongoMetastoreContext<TableMetadataUnit> context)

Method Summary

Modifier and Type	Method	Description
List<Overwrite>	toOverwrite(List<TableMetadataUnit> units)	Groups given list of TableMetadataUnit, convert them to list of overwrite operations

Methods inherited from class org.apache.drill.metastore.mongo.transform.OperationTransformer

toDelete, toDeleteAll

Methods inherited from class java.lang.Object

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

Constructor Details

TablesOperationTransformer

public TablesOperationTransformer(MongoMetastoreContext<TableMetadataUnit> context)

Method Details

toOverwrite

public List<Overwrite> toOverwrite(List<TableMetadataUnit> units)

Groups given list of TableMetadataUnit, convert them to list of overwrite operations

Specified by:

toOverwrite in class OperationTransformer<TableMetadataUnit>

Parameters:

units - Metastore component units

Returns:

list of overwrite operations