org.eclipse.birt.chart.computation

Class DataSetIterator

java.lang.Object

org.eclipse.birt.chart.computation.DataSetIterator

All Implemented Interfaces:

java.util.Iterator

public final class DataSetIterator
extends java.lang.Object
implements java.util.Iterator

An immutable class with convenience methods provided to retrieve data from the dataset

Constructor Summary

Constructors

Constructor and Description
DataSetIterator(com.ibm.icu.util.Calendar[] ca)
DataSetIterator(DataSet ds)
DataSetIterator(java.lang.Double[] dda)
DataSetIterator(java.lang.Object oContent, int iDataType)
DataSetIterator(java.lang.String[] sa)

Method Summary

Modifier and Type	Method and Description
void	clear() Frees all references to data held internally in this structure
java.lang.Object	first()
int	getDataType()
int	getIndex()
boolean	hasNext()
boolean	isEmpty()
java.lang.Object	last()
java.lang.Object	next()
org.eclipse.birt.chart.util.BigNumber	nextBigNumber()
com.ibm.icu.util.Calendar	nextDateTime()
java.lang.Double	nextDouble()
java.lang.Number	nextNumber()
java.lang.Object	nextObject()
com.ibm.icu.util.Calendar	nextPrimitiveDateTime()
double	nextPrimitiveDouble()
java.lang.String	nextText()
void	notifyDataUpdate()
void	remove()
void	reset()
void	reverse(boolean bReverse) Reverses the series categories.
int	size()
int	skip(int iCount) Skips the next iCount rows

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Detail

DataSetIterator

public DataSetIterator(java.lang.Double[] dda)

Parameters:

ds -

DataSetIterator

public DataSetIterator(java.lang.String[] sa)

Parameters:

sa -

DataSetIterator

public DataSetIterator(com.ibm.icu.util.Calendar[] ca)
                throws ChartException

Parameters:

sa -

Throws:

ChartException

DataSetIterator

public DataSetIterator(java.lang.Object oContent,
                       int iDataType)
                throws java.lang.IllegalArgumentException,
                       ChartException

Parameters:

ds -

Throws:

java.lang.IllegalArgumentException

ChartException

DataSetIterator

public DataSetIterator(DataSet ds)
                throws java.lang.IllegalArgumentException,
                       ChartException

Parameters:

ds -

Throws:

java.lang.IllegalArgumentException

ChartException

Method Detail

isEmpty

public final boolean isEmpty()

Returns:

nextPrimitiveDouble

public final double nextPrimitiveDouble()

Returns:

nextDouble

public final java.lang.Double nextDouble()

Returns:

nextBigNumber

public final org.eclipse.birt.chart.util.BigNumber nextBigNumber()

nextNumber

public final java.lang.Number nextNumber()

nextDateTime

public final com.ibm.icu.util.Calendar nextDateTime()

Returns:

nextText

public final java.lang.String nextText()

Returns:

nextObject

public final java.lang.Object nextObject()

Returns:

nextPrimitiveDateTime

public final com.ibm.icu.util.Calendar nextPrimitiveDateTime()

Returns:

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator

Returns:

next

public final java.lang.Object next()

Specified by:

next in interface java.util.Iterator

Returns:

remove

public void remove()

Specified by:

remove in interface java.util.Iterator

size

public int size()

Returns:

reset

public final void reset()

first

public final java.lang.Object first()

Returns:

last

public final java.lang.Object last()

Returns:

clear

public final void clear()

Frees all references to data held internally in this structure

notifyDataUpdate

public final void notifyDataUpdate()

getDataType

public final int getDataType()

Returns:

getIndex

public final int getIndex()

Returns:

current index

reverse

public void reverse(boolean bReverse)

Reverses the series categories.

Parameters:

bReverse -

skip

public int skip(int iCount)

Skips the next iCount rows

Parameters:

iCount -

Returns:

number of actually skipped rows