org.datamixer.functions
Class FunctionStrategy

java.lang.Object
  org.datamixer.functions.FunctionStrategy

Direct Known Subclasses:

AddStrategy, AddValueStrategy, ConcatStrategy, DivideStrategy, ForEachStrategy, LineStrategy, MultiplyStrategy, SubtractStrategy

public abstract class FunctionStrategy

extends java.lang.Object

Field Summary

protected FunctionIterator	functionIterator_ the associated function
protected org.apache.log4j.Logger	logger_
protected StrategyResult	result_ the result

Constructor Summary

FunctionStrategy()

Method Summary

protected void	doInitialize()
int	findDataType(int type) Set the datatype.
int	getDataType() Get the datatype.
FunctionIterator	getFunctionIterator() Returns the current function iterator.
protected void	handleArguments(Value value) If value is a ValueListValue, calls handleArguments recursively on its values.
void	initialize()
protected void	initResult()
protected void	operate(Value value) Operates on value.
Value	operator() Applies an operator to the children of a Function node.
void	setDataType(int type) Set the datatype.
void	setFunctionIterator(FunctionIterator value) Sets the current function iterator.

Methods inherited from class java.lang.Object

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

Field Detail

functionIterator_

protected FunctionIterator functionIterator_

the associated function

result_

protected StrategyResult result_

the result

logger_

protected org.apache.log4j.Logger logger_

Constructor Detail

FunctionStrategy

public FunctionStrategy()

Method Detail

getDataType

public int getDataType()

Get the datatype.

setDataType

public void setDataType(int type)

Set the datatype.

findDataType

public int findDataType(int type)
                 throws DatamixerException

Set the datatype.

Throws:

DatamixerException

getFunctionIterator

public FunctionIterator getFunctionIterator()

Returns the current function iterator.

Returns:

the current function iterator.

setFunctionIterator

public void setFunctionIterator(FunctionIterator value)

Sets the current function iterator.

Parameters:

value - the current function iterator.

operator

public Value operator()
               throws DatamixerException

Applies an operator to the children of a Function node.

Throws:

DatamixerException

initialize

public void initialize()

doInitialize

protected void doInitialize()

initResult

protected void initResult()

handleArguments

protected void handleArguments(Value value)
                        throws DatamixerException

If value is a ValueListValue, calls handleArguments recursively on its values. Otherwise calls operate(org.datamixer.values.Value) on value.

Throws:

DatamixerException

operate

protected void operate(Value value)
                throws DatamixerException

Operates on value.

Throws:

DatamixerException