org.apache.calcite.rex

Class RexWindow

java.lang.Object

org.apache.calcite.rex.RexWindow

public class RexWindow
extends Object

Specification of the window of rows over which a RexOver windowed aggregate is evaluated.

Treat it as immutable!

Field Summary

Fields

Modifier and Type	Field and Description
private String	digest
private boolean	isRows
private RexWindowBound	lowerBound
com.google.common.collect.ImmutableList<RexFieldCollation>	orderKeys
com.google.common.collect.ImmutableList<RexNode>	partitionKeys
private RexWindowBound	upperBound

Constructor Summary

Constructors

Constructor and Description
RexWindow(List<RexNode> partitionKeys, List<RexFieldCollation> orderKeys, RexWindowBound lowerBound, RexWindowBound upperBound, boolean isRows) Creates a window.

Method Summary

Modifier and Type	Method and Description
private String	computeDigest()
boolean	equals(Object that)
RexWindowBound	getLowerBound()
RexWindowBound	getUpperBound()
int	hashCode()
boolean	isRows()
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

partitionKeys

public final com.google.common.collect.ImmutableList<RexNode> partitionKeys

orderKeys

public final com.google.common.collect.ImmutableList<RexFieldCollation> orderKeys

lowerBound

private final RexWindowBound lowerBound

upperBound

private final RexWindowBound upperBound

isRows

private final boolean isRows

digest

private final String digest

Constructor Detail

RexWindow

RexWindow(List<RexNode> partitionKeys,
          List<RexFieldCollation> orderKeys,
          RexWindowBound lowerBound,
          RexWindowBound upperBound,
          boolean isRows)

Creates a window.

If you need to create a window from outside this package, use RexBuilder.makeOver(org.apache.calcite.rel.type.RelDataType, org.apache.calcite.sql.SqlAggFunction, java.util.List<org.apache.calcite.rex.RexNode>, java.util.List<org.apache.calcite.rex.RexNode>, com.google.common.collect.ImmutableList<org.apache.calcite.rex.RexFieldCollation>, org.apache.calcite.rex.RexWindowBound, org.apache.calcite.rex.RexWindowBound, boolean, boolean, boolean, boolean).

Method Detail

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object that)

Overrides:

equals in class Object

computeDigest

private String computeDigest()

getLowerBound

public RexWindowBound getLowerBound()

getUpperBound

public RexWindowBound getUpperBound()

isRows

public boolean isRows()