Class QueryPlan.GroupSort

java.lang.Object

org.cojen.tupl.diag.QueryPlan

org.cojen.tupl.diag.QueryPlan.Sort

org.cojen.tupl.diag.QueryPlan.GroupSort

All Implemented Interfaces:

Serializable

Enclosing class:

QueryPlan

public static final class QueryPlan.GroupSort
extends QueryPlan.Sort

Query plan node which sorts rows within a group. The groups are already ordered correctly with respect to other groups, and so a full sort isn't required.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.cojen.tupl.diag.QueryPlan

QueryPlan.Aggregator, QueryPlan.Concat, QueryPlan.DisjointUnion, QueryPlan.Empty, QueryPlan.Exists, QueryPlan.Filter, QueryPlan.FullScan, QueryPlan.Grouper, QueryPlan.GroupSort, QueryPlan.Identity, QueryPlan.LoadOne, QueryPlan.Mapper, QueryPlan.MergeConcat, QueryPlan.MergeUnion, QueryPlan.NaturalJoin, QueryPlan.NestedLoopsJoin, QueryPlan.PrimaryJoin, QueryPlan.RangeScan, QueryPlan.RangeUnion, QueryPlan.Scan, QueryPlan.Set, QueryPlan.Sort, QueryPlan.Table, QueryPlan.Union

Field Summary

Fields

Modifier and Type	Field	Description
final String[]	groupColumns

Fields inherited from class org.cojen.tupl.diag.QueryPlan.Sort

sortColumns, source

Constructor Summary

Constructors

Constructor	Description
GroupSort(String[] groupColumns, String[] sortColumns, QueryPlan source)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
int	hashCode()

Methods inherited from class org.cojen.tupl.diag.QueryPlan

appendTo, appendTo, printTo, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

groupColumns

public final String[] groupColumns

Constructor Details

GroupSort

public GroupSort(String[] groupColumns,
 String[] sortColumns,
 QueryPlan source)

Parameters:

groupColumns - columns with '+' or '-' prefix

sortColumns - columns with '+' or '-' prefix

source - child plan node

Method Details

equals

public boolean equals(Object obj)

Overrides:

equals in class QueryPlan.Sort

hashCode

public int hashCode()

Overrides:

hashCode in class QueryPlan.Sort