org.datamixer.functions
Class FunctionIterator

java.lang.Object
  org.datamixer.collections.DatamixerIterator
      org.datamixer.containers.SequenceIterator
          org.datamixer.functions.FunctionIterator

All Implemented Interfaces:

java.util.Iterator

public class FunctionIterator
extends SequenceIterator

Field Summary

protected Value[]	params_ for each generation, function parameters are iterator values
protected FunctionStrategy	strategy_ strategy

Fields inherited from class org.datamixer.containers.SequenceIterator

current_, currentIterator_, currentIteratorIndex_, elements_, iterators_, repeatAll_, TRAVERSAL_BREADTH, TRAVERSAL_BREADTH_STRING, TRAVERSAL_DEPTH, TRAVERSAL_DEPTH_STRING, TRAVERSAL_UNDEFINED, TRAVERSAL_UNDEFINED_STRING, traversalOrder_, wasReset_

Fields inherited from class org.datamixer.collections.DatamixerIterator

collection_, dataType_, dataTypeSet_, debugEnabled_, done_, doneChecked_, format_, formatPattern_, id_, infoEnabled_, initialized_, iterations_, limit_, limitSet_, logger_, repeat_, repeatSet_

Constructor Summary

FunctionIterator()

FunctionIterator(FunctionStrategy strategy)

Method Summary

static void	checkCompatibility(int type1, int type2) Checks compatibility between two datatypes.
static int	dataTypeWeight(int type) Returns the datatype with maximum precision for type1 and type2.
protected boolean	doDone() Gets the next value from each iterator, returns true if any are done.
protected void	doGenerate() Generates the next value.
protected void	doInitialize() Initialization.
protected int	findDataType() Returns the datatype.
java.text.Format	getFormat(java.lang.String pattern) Returns an appropriate Format object.
Value[]	getParams() Sets the current strategy.
FunctionStrategy	getStrategy() Returns the current strategy.
static int	maxDataType(int type1, int type2) Returns the datatype with maximum precision for type1 and type2.
void	setStrategy(FunctionStrategy value) Sets the current strategy.

Methods inherited from class org.datamixer.containers.SequenceIterator

addElement, addElement, doGetCurrentValue, doReset, getElement, getElements, getIterator, getIterators, getRepeatAll, getTraversalOrder, setRepeatAll, setTraversalOrder, traversalOrderFromString, traversalOrderToString

Methods inherited from class org.datamixer.collections.DatamixerIterator

generate, getCollection, getCurrent, getCurrentValue, getDataType, getFormatPattern, getHasNext, getId, getIterations, getLimit, getNext, getNextValue, getRepeat, hasNext, initialize, next, remove, reset, setCollection, setCurrentValue, setDataType, setFormatPattern, setId, setLimit, setRepeat, toString

Methods inherited from class java.lang.Object

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

Field Detail

strategy_

protected FunctionStrategy strategy_

strategy

params_

protected Value[] params_

for each generation, function parameters are iterator values

Constructor Detail

FunctionIterator

public FunctionIterator()

FunctionIterator

public FunctionIterator(FunctionStrategy strategy)

Method Detail

getFormat

public java.text.Format getFormat(java.lang.String pattern)

Returns an appropriate Format object.

Overrides:

getFormat in class SequenceIterator

doInitialize

protected void doInitialize()
                     throws DatamixerException

Description copied from class: SequenceIterator

Initialization.

Overrides:

doInitialize in class SequenceIterator

Throws:

DatamixerException

doDone

protected boolean doDone()
                  throws DatamixerException

Gets the next value from each iterator, returns true if any are done.

Overrides:

doDone in class SequenceIterator

Throws:

DatamixerException

doGenerate

protected void doGenerate()
                   throws DatamixerException

Generates the next value.

Overrides:

doGenerate in class SequenceIterator

Throws:

DatamixerException

getStrategy

public FunctionStrategy getStrategy()
                             throws DatamixerException

Returns the current strategy.

Returns:

the current strategy.

Throws:

DatamixerException

setStrategy

public void setStrategy(FunctionStrategy value)

Sets the current strategy.

Parameters:

value - the current strategy.

getParams

public Value[] getParams()

Sets the current strategy.

Parameters:

value - the current strategy.

findDataType

protected int findDataType()
                    throws DatamixerException

Returns the datatype. Datatypes are defined in java.sql.Types.

Throws:

DatamixerException - if children have incompatible types.

maxDataType

public static int maxDataType(int type1,
                              int type2)
                       throws DatamixerException

Returns the datatype with maximum precision for type1 and type2.

Throws:

DatamixerException - if types are not supported or incompatible.

checkCompatibility

public static void checkCompatibility(int type1,
                                      int type2)
                               throws DatamixerException

Checks compatibility between two datatypes.

Throws:

DatamixerException - if types are incompatible.

dataTypeWeight

public static int dataTypeWeight(int type)
                          throws DatamixerException

Returns the datatype with maximum precision for type1 and type2.

Throws:

DatamixerException - if type is not supported.