Package com.blazebit.persistence.impl.function.count

Class AbstractCountFunction

java.lang.Object

com.blazebit.persistence.impl.function.count.AbstractCountFunction

All Implemented Interfaces:

JpqlFunction

Direct Known Subclasses:

CountTupleEmulationFunction, CountTupleFunction, MySQLCountTupleFunction

public abstract class AbstractCountFunction
extends Object
implements JpqlFunction

Since:

1.2.0

Author:

Moritz Becker

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static final class	AbstractCountFunction.Count

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DISTINCT_QUALIFIER
static final String	FUNCTION_NAME

Constructor Summary

Constructors

Constructor	Description
AbstractCountFunction()

Method Summary

Modifier and Type	Method	Description
protected AbstractCountFunction.Count	getCount(FunctionRenderContext context)
Class<?>	getReturnType(Class<?> firstArgumentType)
boolean	hasArguments()
boolean	hasParenthesesIfNoArguments()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.blazebit.persistence.spi.JpqlFunction

render

Field Details

FUNCTION_NAME

public static final String FUNCTION_NAME

See Also:

• Constant Field Values

DISTINCT_QUALIFIER

public static final String DISTINCT_QUALIFIER

See Also:

• Constant Field Values

Constructor Details

AbstractCountFunction

public AbstractCountFunction()

Method Details

hasArguments

public boolean hasArguments()

Specified by:

hasArguments in interface JpqlFunction

hasParenthesesIfNoArguments

public boolean hasParenthesesIfNoArguments()

Specified by:

hasParenthesesIfNoArguments in interface JpqlFunction

getReturnType

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

Specified by:

getReturnType in interface JpqlFunction

getCount

protected AbstractCountFunction.Count getCount(FunctionRenderContext context)