org.springframework.batch.item.file.transform
Class RangeArrayPropertyEditor

java.lang.Object
  java.beans.PropertyEditorSupport
      org.springframework.batch.item.file.transform.RangeArrayPropertyEditor

All Implemented Interfaces:

PropertyEditor

public class RangeArrayPropertyEditor
extends PropertyEditorSupport

Property editor implementation which parses string and creates array of ranges. Ranges can be provided in any order.
Input string should be provided in following format: 'range1, range2, range3,...' where range is specified as:

• 'X-Y', where X is minimum value and Y is maximum value (condition X<=Y is verified)
• or 'Z', where Z is minimum and maximum is calculated as (minimum of adjacent range - 1). Maximum of the last range is never calculated. Range stays unbound at maximum side if maximum value is not provided.

Minimum and maximum values can be from interval <1, Integer.MAX_VALUE-1>

Examples:
'1, 15, 25, 38, 55-60' is equal to '1-14, 15-24, 25-37, 38-54, 55-60'
'36, 14, 1-10, 15, 49-57' is equal to '36-48, 14-14, 1-10, 15-35, 49-57'

Property editor also allows to validate whether ranges are disjoint. Validation can be turned on/off by using setForceDisjointRanges(boolean). By default validation is turned off.

Author:

peter.zozom

Constructor Summary

RangeArrayPropertyEditor()

Method Summary

String	getAsText()
void	setAsText(String text)
void	setForceDisjointRanges(boolean forceDisjointRanges) Set force disjoint ranges.

Methods inherited from class java.beans.PropertyEditorSupport

addPropertyChangeListener, firePropertyChange, getCustomEditor, getJavaInitializationString, getSource, getTags, getValue, isPaintable, paintValue, removePropertyChangeListener, setSource, setValue, supportsCustomEditor

Methods inherited from class java.lang.Object

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

Constructor Detail

RangeArrayPropertyEditor

public RangeArrayPropertyEditor()

Method Detail

setForceDisjointRanges

public void setForceDisjointRanges(boolean forceDisjointRanges)

Set force disjoint ranges. If set to TRUE, ranges are validated to be disjoint. For example: defining ranges '1-10, 5-15' will cause IllegalArgumentException in case of forceDisjointRanges=TRUE.

Parameters:

forceDisjointRanges -

setAsText

public void setAsText(String text)
               throws IllegalArgumentException

Specified by:

setAsText in interface PropertyEditor

Overrides:

setAsText in class PropertyEditorSupport

Throws:

IllegalArgumentException

getAsText

public String getAsText()

Specified by:

getAsText in interface PropertyEditor

Overrides:

getAsText in class PropertyEditorSupport