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Created by Fang on November 22, 2011 10:40:16 Last update: November 22, 2011 10:40:16
This is an example that uses tag handler, UI component and renderer together to support a custom taglib. The main purpose is to show how these components play together. The tag renders
<ui:param name="extra" value="el interpreted"/> ...as
<h3>my:foreach</h3> <ul class="css class" extra...These are the files: The tag handler ( src/main/java/com/example/ForeachTagHandler.java ):
package com.example; import java.util.Map; ...The UI component ( src/main/java/com/example/UIForeach.java ):
package com.example; import java.io.IOExcep...The renderer ( src/main/java/com/example/ForeachRenderer.java ):
package com.example; import java.io.IOExcep...Faces config ( src/main/resources/META-INF/faces-config.xml ):
<?xml version="1.0" encoding="UTF-8"?> <faces-c...Taglib config ( src/main/resources/META-INF/foreach.taglib.xml ):
<?xml version="1.0" encoding="UTF-8"?> <facelet...
Created by Fang on November 08, 2011 20:55:00 Last update: November 21, 2011 18:19:44
In the simple taglib example , I used a tag handler class to implement a taglib. This is an example to implement a taglib with a UI component. The purpose is to use a custom tag to split a string and print each part in a separate paragraph, i.e., print
<p>john</p> <p>steve</p> <p>mike</p>with custom tag <my:foreach> :
<my:foreach var="who" value="john steve mike"> ...These are the files: pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0"...src/main/java/com/example/UIForeash.java :
package com.example; import java.io.IOExcep...src/main/resources/META-INF/faces-config.xml :
<?xml version="1.0" encoding="UTF-8"?> <faces-c...src/main/resources/META-INF/foreach.taglib.xml :
<?xml version="1.0" encoding="UTF-8"?> <facelet...How to use: Put the JAR file generated by the above project in the WEB-INF/lib folder of the web app. If the web app is a Maven project, just add the taglib project as a dependency:...
Created by Dr. Xi on October 26, 2010 16:07:40 Last update: October 26, 2010 16:07:40
This is a more generic version, which can be expanded to accommodate additional file signatures.
import java.io.*; import java.util.*; pu...
Created by Dr. Xi on February 24, 2010 21:13:05 Last update: February 24, 2010 21:19:54
This program demonstrates the use of the java.nio package to implement a single thread echo server.
import java.io.IOException; import java.net.Ine...
Created by Dr. Xi on January 08, 2010 03:53:37 Last update: January 08, 2010 03:54:56
This is an Ant custom task to merge Properties files I lifted from http://marc.info/?l=ant-user&m=106442688632164&w=2 , with some minor bug fixes. Example usage:
<taskdef name="mergeProperty" classname="ant.task....Implementation:
package ant.task.addon; import java.io.Buff...
Created by Dr. Xi on November 19, 2008 00:22:27 Last update: January 07, 2010 23:00:36
There is a open source project named [ini4j] for processing Windows .ini configuration files. However, I found it an overkill for my purposes. So here is my simple implementation of a .ini parser. It mimics the standard java.util.Properties class with enhancements to get and set properties by section name. There are only a few simple rules: Leading and trailing spaces are trimmed from section names, property names and property values. Section names are enclosed between [ and ] . Properties following a section header belong to that section Properties defined before the appearance of any section headers are considered global properties and should be set and get with no section names. You can use either equal sign ( = ) or colon ( : )...
Created by Dr. Xi on September 25, 2008 02:56:24 Last update: September 25, 2008 03:00:10
When you use a TreeMap , the entries in the Map is sorted by the keys. This following code outputs the elements of the map sorted by value.
import java.util.*; @SuppressWarnings("...The output is:
key: e, value: be key: g, value: by key:...