Package ptolemy.data.expr

Class ConcreteMatrixToken

java.lang.Object

ptolemy.data.Token

ptolemy.data.MatrixToken

ptolemy.data.expr.ConcreteMatrixToken

public class ConcreteMatrixToken
extends MatrixToken

A token that represents an empty matrix, with no element type. This is instantiated by the Constants class with name "matrix".

Since:

Ptolemy II 2.0

Version:

$Id$

Author:

Edward A. Lee

See Also:

Constants

Pt.AcceptedRating:

Yellow (wbwu)

Pt.ProposedRating:

Yellow (yuhong)

Field Summary

Fields inherited from class ptolemy.data.MatrixToken

_nils, DO_COPY, DO_NOT_COPY

Fields inherited from class ptolemy.data.Token

NIL

Constructor Summary

Constructors

Constructor	Description
ConcreteMatrixToken()

Method Summary

Modifier and Type	Method	Description
int	getColumnCount()	Return the number of columns of the contained matrix.
Token	getElementAsToken(int row, int column)	Throw an ArrayIndexOutOfBoundsException.
Type	getElementType()	Return the Type of the tokens contained in this matrix token.
int	getRowCount()	Return the number of rows of the contained matrix.
Type	getType()	Return the type of this token.

Methods inherited from class ptolemy.data.MatrixToken

_add, _addElement, _divideElement, _elementIsNil, _isCloseTo, _isEqualTo, _moduloElement, _multiply, _multiplyElement, _subtract, _subtractElement, _subtractElementReverse, add, addReverse, arrayToMatrix, arrayToMatrix, arrayToMatrixReturnType, booleanMatrix, complexMatrix, create, createSequence, createSequenceReturnType, createTokenSequence, crop, determineSequenceLength, divide, divideReverse, doubleMatrix, fixMatrix, intMatrix, isCloseTo, isEqualTo, join, longMatrix, matrixToArray, matrixToArrayReturnType, modulo, moduloReverse, multiply, multiplyReverse, oneRight, split, subtract, subtractReverse, toArray, toArrayColumnMajor, toArrayReturnType, toString

Methods inherited from class ptolemy.data.Token

isCloseTo, isNil, notSupportedConversionMessage, notSupportedIncomparableConversionMessage, notSupportedIncomparableMessage, notSupportedMessage, notSupportedNullNilStringMessage, one, pow, zero, zeroReturnType

Methods inherited from class java.lang.Object

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

Constructor Detail

ConcreteMatrixToken

public ConcreteMatrixToken()

Method Detail

getColumnCount

public int getColumnCount()

Return the number of columns of the contained matrix.

Specified by:

getColumnCount in class MatrixToken

Returns:

Zero.

getElementAsToken

public Token getElementAsToken(int row,
                               int column)
                        throws java.lang.ArrayIndexOutOfBoundsException

Throw an ArrayIndexOutOfBoundsException.

Specified by:

getElementAsToken in class MatrixToken

Parameters:

row - The row index of the desired element.

column - The column index of the desired element.

Returns:

An exception.

Throws:

java.lang.ArrayIndexOutOfBoundsException - Always thrown.

getElementType

public Type getElementType()

Return the Type of the tokens contained in this matrix token.

Specified by:

getElementType in class MatrixToken

Returns:

A Type.

getRowCount

public int getRowCount()

Return the number of rows of the contained matrix.

Specified by:

getRowCount in class MatrixToken

Returns:

Zero.

getType

public Type getType()

Return the type of this token.

Overrides:

getType in class Token

Returns:

BaseType.MATRIX.