org.apache.phoenix.execute

Class DelegateQueryPlan

java.lang.Object

org.apache.phoenix.execute.DelegateQueryPlan

All Implemented Interfaces:

QueryPlan, StatementPlan

Direct Known Subclasses:

ClientProcessingPlan, HashJoinPlan, TupleProjectionPlan

public abstract class DelegateQueryPlan
extends Object
implements QueryPlan

Field Summary

Fields

Modifier and Type	Field and Description
protected QueryPlan	delegate

Constructor Summary

Constructors

Constructor and Description
DelegateQueryPlan(QueryPlan delegate)

Method Summary

Methods

Modifier and Type	Method and Description
StatementContext	getContext()
long	getEstimatedSize()
GroupByCompiler.GroupBy	getGroupBy()
Integer	getLimit()
OrderByCompiler.OrderBy	getOrderBy()
ParameterMetaData	getParameterMetaData() Returns the ParameterMetaData for the statement
RowProjector	getProjector() Returns projector used to formulate resultSet row
List<List<Scan>>	getScans()
List<KeyRange>	getSplits()
FilterableStatement	getStatement()
TableRef	getTableRef()
boolean	isDegenerate()
boolean	isRowKeyOrdered()
boolean	useRoundRobinIterator()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.phoenix.compile.QueryPlan

iterator, iterator

Methods inherited from interface org.apache.phoenix.compile.StatementPlan

getExplainPlan

Field Detail

delegate

protected final QueryPlan delegate

Constructor Detail

DelegateQueryPlan

public DelegateQueryPlan(QueryPlan delegate)

Method Detail

getContext

public StatementContext getContext()

Specified by:

getContext in interface StatementPlan

getParameterMetaData

public ParameterMetaData getParameterMetaData()

Description copied from interface: StatementPlan

Returns the ParameterMetaData for the statement

Specified by:

getParameterMetaData in interface StatementPlan

getEstimatedSize

public long getEstimatedSize()

Specified by:

getEstimatedSize in interface QueryPlan

getTableRef

public TableRef getTableRef()

Specified by:

getTableRef in interface QueryPlan

getProjector

public RowProjector getProjector()

Description copied from interface: QueryPlan

Returns projector used to formulate resultSet row

Specified by:

getProjector in interface QueryPlan

getLimit

public Integer getLimit()

Specified by:

getLimit in interface QueryPlan

getOrderBy

public OrderByCompiler.OrderBy getOrderBy()

Specified by:

getOrderBy in interface QueryPlan

getGroupBy

public GroupByCompiler.GroupBy getGroupBy()

Specified by:

getGroupBy in interface QueryPlan

getSplits

public List<KeyRange> getSplits()

Specified by:

getSplits in interface QueryPlan

getScans

public List<List<Scan>> getScans()

Specified by:

getScans in interface QueryPlan

getStatement

public FilterableStatement getStatement()

Specified by:

getStatement in interface QueryPlan

isDegenerate

public boolean isDegenerate()

Specified by:

isDegenerate in interface QueryPlan

isRowKeyOrdered

public boolean isRowKeyOrdered()

Specified by:

isRowKeyOrdered in interface QueryPlan

useRoundRobinIterator

public boolean useRoundRobinIterator()
                              throws SQLException

Specified by:

useRoundRobinIterator in interface QueryPlan

Returns:

whether underlying ResultScanner can be picked up in a round-robin fashion. Generally, selecting scanners in such a fashion is possible if rows don't have to be returned back in a certain order.

Throws:

SQLException