org.eclipse.scada.da.server.browser.common.query

Class SplitNameProvider

java.lang.Object

org.eclipse.scada.da.server.browser.common.query.SplitNameProvider

All Implemented Interfaces:

NameProvider

public class SplitNameProvider
extends Object
implements NameProvider

A name provider which will split the name and re-assemble it

This name provider will take a name, provided by another name provider, split it into tokens, by the means of a regular expression. After that it will selected tokens, based on the fromStart and fromEnd positions and re-assemble the string using the provided delimiter.

If fromStart is positive, tokens before that index will be included. Otherwise they will be rejected.

If fromEnd is positive, tokens after that index will be included. Otherwise they will be rejected.

Assuming the pattern is - and the delimiter is .

Name		fromStart	fromEnd	Result
1-2-3-4-5	2	0	1.2
1-2-3-4-5	0	2	4.5
1-2-3-4-5	-2	0	3.4
1-2-3-4-5	0	-2	1.2.3

Constructor Summary

Constructors

Constructor and Description
SplitNameProvider(NameProvider nameProvider, Pattern pattern, int fromStart, int fromEnd, String delimiter) Create a new split name provider
SplitNameProvider(NameProvider nameProvider, String pattern, int fromStart, int fromEnd, String delimiter) Create a new split name provider Actually calls SplitNameProvider(NameProvider, Pattern, int, int, String) with Pattern.compile(String)

Method Summary

Modifier and Type	Method and Description
String	getName(ItemDescriptor descriptor)

Methods inherited from class java.lang.Object

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

Constructor Detail

SplitNameProvider

public SplitNameProvider(NameProvider nameProvider,
                         Pattern pattern,
                         int fromStart,
                         int fromEnd,
                         String delimiter)

Create a new split name provider

The parameters fromStart and fromEnd actually define how much to take from the start and from the end.

Parameters:

nameProvider - the provider of the name to split

pattern - the pattern

fromStart - the number of tokens to take from the start

fromEnd - the number of tokens to take from the end

delimiter - the delimiter

SplitNameProvider

public SplitNameProvider(NameProvider nameProvider,
                         String pattern,
                         int fromStart,
                         int fromEnd,
                         String delimiter)

Create a new split name provider
Actually calls SplitNameProvider(NameProvider, Pattern, int, int, String) with Pattern.compile(String)

Parameters:

nameProvider - the provider of the name to split

pattern - the pattern

fromStart - the number of tokens to take from the start

fromEnd - the number of tokens to take from the end

delimiter - the delimiter

Method Detail

getName

public String getName(ItemDescriptor descriptor)

Specified by:

getName in interface NameProvider