org.apache.hadoop.hive.ql.lib
Interface Node

All Known Implementing Classes:

AbstractMapJoinOperator, ASTNode, BlockMergeTask, CollectOperator, ColumnStatsTask, CommonJoinOperator, ConditionalTask, CopyTask, DDLTask, DependencyCollectionTask, ExecDriver, ExplainTask, ExprNodeColumnDesc, ExprNodeConstantDesc, ExprNodeDesc, ExprNodeFieldDesc, ExprNodeGenericFuncDesc, ExprNodeNullDesc, ExtractOperator, FetchTask, FileSinkOperator, FilterOperator, ForwardOperator, FunctionTask, GroupByOperator, HashTableDummyOperator, HashTableSinkOperator, IndexMetadataChangeTask, JoinOperator, LateralViewForwardOperator, LateralViewJoinOperator, LimitOperator, ListSinkOperator, MapJoinOperator, MapOperator, MapredLocalTask, MapRedTask, MoveTask, Operator, ReduceSinkOperator, ScriptOperator, SelectOperator, SMBMapJoinOperator, StatsTask, TableScanOperator, Task, TerminalOperator, UDTFOperator, UnionOperator

public interface Node

This interface defines the functions needed by the walkers and dispatchers. These are implemented by the node of the graph that needs to be walked.

Method Summary

List<? extends Node>	getChildren() Gets the vector of children nodes.
String	getName() Gets the name of the node.

Method Detail

getChildren

List<? extends Node> getChildren()

Gets the vector of children nodes. This is used in the graph walker algorithms.

Returns:

List

getName

String getName()

Gets the name of the node. This is used in the rule dispatchers.

Returns:

String