Package com.semedy.reasoner.builtin.aggregation

Class CountUnique

java.lang.Object

com.semedy.reasoner.builtin.aggregation.AbstractAggregation

com.semedy.reasoner.builtin.aggregation.CountUnique

All Implemented Interfaces:

Aggregation, Builtin, VariableArgumentLengthBuiltin

public class CountUnique
extends AbstractAggregation

count builtin with first argument is the grouping argument

Constructor Summary

Constructors

Constructor	Description
CountUnique()

Method Summary

Modifier and Type	Method	Description
Builtin	cloneBuiltin()	clone the builtin
String[]	getArgumentDescriptions()	get descriptions for the different arguments
String	getDescription()	get a description for the builtin
String	getName()	get the name of the builtin
boolean	readsSymbolTable()	does the builtin read the symbol table

Methods inherited from class com.semedy.reasoner.builtin.aggregation.AbstractAggregation

clear, deliversOneResultOnly, evaluate, evaluationFinished, getArity, getMaxLength, getMinLength, getType, getWeight, init, input, isEvaluable, isInternal, objectGeneratingArguments, setProperties, setSymbolTable, start, stop, writesSymbolTable

Methods inherited from class java.lang.Object

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

Constructor Details

CountUnique

public CountUnique()

Method Details

cloneBuiltin

public Builtin cloneBuiltin()

Description copied from interface: Builtin

clone the builtin

Returns:

the cloned built-in

getName

public String getName()

Description copied from interface: Builtin

get the name of the builtin

Specified by:

getName in interface Builtin

Specified by:

getName in class AbstractAggregation

Returns:

the name of the built-in

getArgumentDescriptions

public String[] getArgumentDescriptions()

Description copied from interface: Builtin

get descriptions for the different arguments

Specified by:

getArgumentDescriptions in interface Builtin

Specified by:

getArgumentDescriptions in class AbstractAggregation

Returns:

a description of the arguments of the built-in

getDescription

public String getDescription()

Description copied from interface: Builtin

get a description for the builtin

Specified by:

getDescription in interface Builtin

Specified by:

getDescription in class AbstractAggregation

Returns:

a description of the built-in

readsSymbolTable

public boolean readsSymbolTable()

Description copied from interface: Builtin

does the builtin read the symbol table

Specified by:

readsSymbolTable in interface Builtin

Overrides:

readsSymbolTable in class AbstractAggregation

Returns:

true if it reads the symbol table