org.apache.phoenix.execute

Class UnionPlan

java.lang.Object

org.apache.phoenix.execute.UnionPlan

All Implemented Interfaces:

QueryPlan, StatementPlan

public class UnionPlan
extends Object
implements QueryPlan

Constructor Summary

Constructors

Constructor and Description
UnionPlan(StatementContext context, FilterableStatement statement, TableRef table, RowProjector projector, Integer limit, OrderByCompiler.OrderBy orderBy, GroupByCompiler.GroupBy groupBy, List<QueryPlan> plans, ParameterMetaData paramMetaData)

Method Summary

Methods

Modifier and Type	Method and Description
StatementContext	getContext()
long	getEstimatedSize()
ExplainPlan	getExplainPlan()
GroupByCompiler.GroupBy	getGroupBy()
Integer	getLimit()
OrderByCompiler.OrderBy	getOrderBy()
ParameterMetaData	getParameterMetaData() Returns the ParameterMetaData for the statement
List<QueryPlan>	getPlans()
RowProjector	getProjector() Returns projector used to formulate resultSet row
List<List<Scan>>	getScans()
List<KeyRange>	getSplits()
FilterableStatement	getStatement()
TableRef	getTableRef()
boolean	isDegenerate()
boolean	isRowKeyOrdered()
ResultIterator	iterator() Get a result iterator to iterate over the results
ResultIterator	iterator(List<? extends SQLCloseable> dependencies)
ResultIterator	iterator(ParallelScanGrouper scanGrouper)
boolean	useRoundRobinIterator()

Methods inherited from class java.lang.Object

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

Constructor Detail

UnionPlan

public UnionPlan(StatementContext context,
         FilterableStatement statement,
         TableRef table,
         RowProjector projector,
         Integer limit,
         OrderByCompiler.OrderBy orderBy,
         GroupByCompiler.GroupBy groupBy,
         List<QueryPlan> plans,
         ParameterMetaData paramMetaData)
          throws SQLException

Throws:

SQLException

Method Detail

isDegenerate

public boolean isDegenerate()

Specified by:

isDegenerate 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

getGroupBy

public GroupByCompiler.GroupBy getGroupBy()

Specified by:

getGroupBy in interface QueryPlan

getOrderBy

public OrderByCompiler.OrderBy getOrderBy()

Specified by:

getOrderBy in interface QueryPlan

getTableRef

public TableRef getTableRef()

Specified by:

getTableRef in interface QueryPlan

getLimit

public Integer getLimit()

Specified by:

getLimit 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

iterator

public final ResultIterator iterator(ParallelScanGrouper scanGrouper)
                              throws SQLException

Specified by:

iterator in interface QueryPlan

Throws:

SQLException

iterator

public final ResultIterator iterator()
                              throws SQLException

Description copied from interface: QueryPlan

Get a result iterator to iterate over the results

Specified by:

iterator in interface QueryPlan

Returns:

result iterator for iterating over the results

Throws:

SQLException

iterator

public final ResultIterator iterator(List<? extends SQLCloseable> dependencies)
                              throws SQLException

Throws:

SQLException

getExplainPlan

public ExplainPlan getExplainPlan()
                           throws SQLException

Specified by:

getExplainPlan in interface StatementPlan

Throws:

SQLException

getEstimatedSize

public long getEstimatedSize()

Specified by:

getEstimatedSize in interface QueryPlan

getParameterMetaData

public ParameterMetaData getParameterMetaData()

Description copied from interface: StatementPlan

Returns the ParameterMetaData for the statement

Specified by:

getParameterMetaData in interface StatementPlan

getStatement

public FilterableStatement getStatement()

Specified by:

getStatement in interface QueryPlan

getContext

public StatementContext getContext()

Specified by:

getContext in interface StatementPlan

isRowKeyOrdered

public boolean isRowKeyOrdered()

Specified by:

isRowKeyOrdered in interface QueryPlan

getPlans

public List<QueryPlan> getPlans()

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