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

private CachedMethod.ArgumentConversion

_baseConversion

Fields inherited from class ptolemy.data.expr.CachedMethod

ARRAYTOKEN_CONVERSION, FUNCTION, IDENTITY_CONVERSION, IMPOSSIBLE_CONVERSION, METHOD, NATIVE_CONVERSION

Constructor Summary

private

CachedMethod.BaseConvertCachedMethod(java.lang.String methodName, Type[] argumentTypes, java.lang.reflect.Method method, CachedMethod.ArgumentConversion baseConversion, CachedMethod.ArgumentConversion[] conversions)

Method Summary

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

Field Detail

_baseConversion

private CachedMethod.ArgumentConversion _baseConversion

Constructor Detail

CachedMethod.BaseConvertCachedMethod

private CachedMethod.BaseConvertCachedMethod(java.lang.String methodName,
                                             Type[] argumentTypes,
                                             java.lang.reflect.Method method,
                                             CachedMethod.ArgumentConversion baseConversion,
                                             CachedMethod.ArgumentConversion[] conversions)
                                      throws IllegalActionException

Throws:

IllegalActionException

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.