Class QueryPlan.RangeScan

java.lang.Object

org.cojen.tupl.diag.QueryPlan

org.cojen.tupl.diag.QueryPlan.Table

org.cojen.tupl.diag.QueryPlan.Scan

org.cojen.tupl.diag.QueryPlan.RangeScan

All Implemented Interfaces:

Serializable

Enclosing class:

QueryPlan

public static final class QueryPlan.RangeScan
extends QueryPlan.Scan

Query plan node which scans a range of rows from a table.

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	high
final String	low

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

reverse

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

keyColumns, table, which

Constructor Summary

Constructors

Constructor	Description
RangeScan(String table, String which, String[] keyColumns, boolean reverse, String low, String high)

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

low

public final String low

high

public final String high

Constructor Details

RangeScan

public RangeScan(String table,
 String which,
 String[] keyColumns,
 boolean reverse,
 String low,
 String high)

Parameters:

which - primary key, alternate key, or secondary index

keyColumns - columns with '+' or '-' prefix

reverse - true if a reverse scan

low - low bound filter expression (or null if open)

high - high bound filter expression (or null if open)

Method Details

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class QueryPlan.Scan