com.hardcode.gdbms.engine.function
Class Count

java.lang.Object
  com.hardcode.gdbms.engine.function.Count

All Implemented Interfaces:

Function

public class Count
extends java.lang.Object
implements Function

Author:

Fernando González Cortés

Constructor Summary

Count()

Method Summary

Function	cloneFunction() DOCUMENT ME!
Value	evaluate(Value[] args) DOCUMENT ME!
java.lang.String	getName() DOCUMENT ME!
boolean	isAggregate() DOCUMENT ME!

Methods inherited from class java.lang.Object

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

Constructor Detail

Count

public Count()

Method Detail

getName

public java.lang.String getName()

Description copied from interface: Function

DOCUMENT ME!

Specified by:

getName in interface Function

Returns:

DOCUMENT ME!

See Also:

com.hardcode.gdbms.engine.function.AggregateFunction#getName()

evaluate

public Value evaluate(Value[] args)
               throws FunctionException

Description copied from interface: Function

DOCUMENT ME!

Specified by:

evaluate in interface Function

Parameters:

args - DOCUMENT ME!

Returns:

DOCUMENT ME!

Throws:

FunctionException - DOCUMENT ME!

See Also:

Function.evaluate(com.hardcode.gdbms.engine.values.Value[])

isAggregate

public boolean isAggregate()

Description copied from interface: Function

DOCUMENT ME!

Specified by:

isAggregate in interface Function

Returns:

DOCUMENT ME!

See Also:

Function.isAggregate()

cloneFunction

public Function cloneFunction()

Description copied from interface: Function

DOCUMENT ME!

Specified by:

cloneFunction in interface Function

Returns:

DOCUMENT ME!

See Also:

Function.cloneFunction()