ptolemy.data.expr

Class CachedMethod.BaseConvertCachedMethod

java.lang.Object

ptolemy.data.expr.CachedMethod

ptolemy.data.expr.CachedMethod.BaseConvertCachedMethod

Enclosing class:

CachedMethod

public static class CachedMethod.BaseConvertCachedMethod
extends CachedMethod

A cached method that converts the object on which the method is invoked as well as the arguments. This allows us to, for example, invoke instance methods of ptolemy.math.Complex on tokens of type ComplexToken. This cached method can only operate on methods.

Nested Class Summary

Nested classes/interfaces inherited from class ptolemy.data.expr.CachedMethod

CachedMethod.ArgumentConversion, CachedMethod.ArrayMapCachedMethod, CachedMethod.BaseConvertCachedMethod, CachedMethod.MatrixMapCachedMethod, CachedMethod.TypeArgumentConversion

Field Summary

Fields inherited from class ptolemy.data.expr.CachedMethod

ARRAYTOKEN_CONVERSION, FUNCTION, IDENTITY_CONVERSION, IMPOSSIBLE_CONVERSION, METHOD, NATIVE_CONVERSION

Method Summary

Modifier and Type	Method and Description
CachedMethod.ArgumentConversion	getBaseConversion() Return the conversion that is applied to the object upon which the method is invoked.
Token	invoke(java.lang.Object[] argValues) Apply the operation represented by this object to the specified arguments.

Methods inherited from class ptolemy.data.expr.CachedMethod

_areConversionsPreferable, _getConversion, _polymorphicGetMethod, clear, equals, findMethod, getCachedMethodType, getConversions, getMethod, getReturnType, hashCode, isFunction, isMethod, isValid, methodDescription, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

getBaseConversion

public CachedMethod.ArgumentConversion getBaseConversion()

Return the conversion that is applied to the object upon which the method is invoked.

Returns:

The conversion that is applied to the object upon which the method is invoked.

invoke

public Token invoke(java.lang.Object[] argValues)
             throws IllegalActionException

Description copied from class: CachedMethod

Apply the operation represented by this object to the specified arguments. This method performs any necessary conversions on token arguments, and, if necessary, converts the returned value into a token. This method may be overridden by derived classes to implement non-standard conversions.

Overrides:

invoke in class CachedMethod

Parameters:

argValues - An array of Token objects that will be used as the arguments.

Returns:

The result of the method invocation, as a Token.

Throws:

IllegalActionException - If this cached method is not valid, or the invoked method throws it.