be.SIRAPRISE.typeimplementations
Class PRIORLONG_LONG

java.lang.Object
  be.SIRAPRISE.typeimplementations.PRIORLONG_LONG

All Implemented Interfaces:

OperatorImplementation, OperatorImplementation_V0104

public final class PRIORLONG_LONG
extends java.lang.Object
implements OperatorImplementation_V0104

The PRIORLONG operator returns the LONG value that is one less than the given argument. If the argument is the lowest possible LONG value, an IllegalArgumentException is thrown.

Author:

Erwin

Constructor Summary

PRIORLONG_LONG()

Method Summary

ValueBuffer	executeOperator(java.util.LinkedList<ValueBuffer> args) The PRIORLONG operator returns the LONG value that is one less than the given argument.
java.lang.String[]	getArgumentTypeNames() PRIORLONG takes a single argument of type LONG
java.lang.String	getReturnTypeName() The return type is LONG
boolean	isDeterministic() Tells whether the operator is deterministic with respect to the arguments of its invocations.

Methods inherited from class java.lang.Object

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

Constructor Detail

PRIORLONG_LONG

public PRIORLONG_LONG()

Method Detail

executeOperator

public ValueBuffer executeOperator(java.util.LinkedList<ValueBuffer> args)

The PRIORLONG operator returns the LONG value that is one less than the given argument. If the argument is the lowest possible LONG value, an IllegalArgumentException is thrown.

Specified by:

executeOperator in interface OperatorImplementation

Parameters:

args - the argument list. The list must hold as many ValueBuffer objects as there are arguments to the operator, and each ValueBuffer object holds a value for some argument to the operator. ValueBuffer objects on the list must appear in the same order as the operator argument declarations.

Returns:

A ValueBuffer object holding the result value of the operator execution in internal format.

getArgumentTypeNames

public java.lang.String[] getArgumentTypeNames()

PRIORLONG takes a single argument of type LONG

Specified by:

getArgumentTypeNames in interface OperatorImplementation

Returns:

The names of the argument types

getReturnTypeName

public java.lang.String getReturnTypeName()

The return type is LONG

Specified by:

getReturnTypeName in interface OperatorImplementation

Returns:

the name of the type of the return value

isDeterministic

public boolean isDeterministic()

Description copied from interface: OperatorImplementation_V0104

Tells whether the operator is deterministic with respect to the arguments of its invocations. An operator is deterministic if and only if for any two distinct invocations, if all the argument values are the same, then the result value returned will also be the same. An example of a nondeterministic operators is RANDOM().

Specified by:

isDeterministic in interface OperatorImplementation_V0104

Returns:

true if the operator is deterministic.