ptolemy.data.expr
Class UnknownToken

java.lang.Object
  ptolemy.data.Token
      ptolemy.data.expr.UnknownToken

All Implemented Interfaces:

java.io.Serializable

public class UnknownToken
extends Token

This is a token that reports its type as "unknown." Otherwise, this class is identical to its parent class. The constant named unknown (defined in the Constants class) is an instance of this token.

Since:

Ptolemy II 2.0

Version:

$Id: UnknownToken.java 57040 2010-01-27 20:52:32Z cxh $

Author:

Edward A. Lee

See Also:

Constants, Serialized Form

Accepted Rating:

Red (wbwu)

Proposed Rating:

Yellow (yuhong)

Field Summary

Fields inherited from class ptolemy.data.Token

NIL

Constructor Summary

UnknownToken()

Method Summary

Type	getType() Return the type of this token.

Methods inherited from class ptolemy.data.Token

add, addReverse, divide, divideReverse, isCloseTo, isCloseTo, isEqualTo, isNil, modulo, moduloReverse, multiply, multiplyReverse, notSupportedConversionMessage, notSupportedIncomparableConversionMessage, notSupportedIncomparableMessage, notSupportedMessage, notSupportedNullNilStringMessage, one, pow, subtract, subtractReverse, toString, zero, zeroReturnType

Methods inherited from class java.lang.Object

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

Constructor Detail

UnknownToken

public UnknownToken()

Method Detail

getType

public Type getType()

Return the type of this token.

Overrides:

getType in class Token

Returns:

BaseType.UNKNOWN.