Package com.blazebit.persistence.impl.function.window.denserank

Class DenseRankFunction

java.lang.Object

com.blazebit.persistence.impl.function.window.AbstractWindowFunction

com.blazebit.persistence.impl.function.window.denserank.DenseRankFunction

All Implemented Interfaces:

JpqlFunction

public class DenseRankFunction
extends AbstractWindowFunction

Rank of the current row without gaps; this function counts peer groups

Since:

1.4.0

Author:

Jan-Willem Gmelig Meyling, Sayra Ranjha

Nested Class Summary

Nested classes/interfaces inherited from class com.blazebit.persistence.impl.function.window.AbstractWindowFunction

AbstractWindowFunction.WindowFunction

Field Summary

Fields

Modifier and Type	Field	Description
static String	FUNCTION_NAME

Fields inherited from class com.blazebit.persistence.impl.function.window.AbstractWindowFunction

allowsFilterClause, functionName, nullIsSmallest, supportsFilterClause, supportsNullPrecedence

Constructor Summary

Constructors

Constructor	Description
DenseRankFunction(DbmsDialect dbmsDialect)

Method Summary

Modifier and Type	Method	Description
Class<?>	getReturnType(Class<?> firstArgumentType)
protected boolean	requiresOver()

Methods inherited from class com.blazebit.persistence.impl.function.window.AbstractWindowFunction

appendEmulatedOrderByElementWithNulls, getCaseWhenPost, getCaseWhenPre, getWindowFunction, getWindowFunction, hasArguments, hasParenthesesIfNoArguments, optimizeNullPrecedence, processArgument, render, render, renderArgument, renderArguments, renderFilterExpressions, renderFrame, renderFramePosition, renderFunction, renderOrder, renderOrderBy, renderPartitions

Methods inherited from class java.lang.Object

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

Field Details

FUNCTION_NAME

public static final String FUNCTION_NAME

See Also:

Constant Field Values

Constructor Details

DenseRankFunction

public DenseRankFunction(DbmsDialect dbmsDialect)

Method Details

getReturnType

public Class<?> getReturnType(Class<?> firstArgumentType)

Specified by:

getReturnType in interface JpqlFunction

Overrides:

getReturnType in class AbstractWindowFunction

requiresOver

protected boolean requiresOver()

Overrides:

requiresOver in class AbstractWindowFunction