Track.TrackFactory (UTGB Toolkit 1.5.9-SNAPSHOT API)

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org.utgenome.gwt.utgb.client.track
Class Track.TrackFactory

java.lang.Object
  org.utgenome.gwt.utgb.client.track.Track.TrackFactory

Enclosing interface:: Track

public abstract static class Track.TrackFactory
extends Object
extends Object

TrackFactory helps to create new Track instance, which can be used to defer its instantiation. Since GWT has no Class.newInstance method with configurable parameters, you have to implement your own factory() method for each track to support deferred instantiation.

Note that, GWT.create(Class) supports deferred instantiation, but you cannot configure any parameter values, when instanticate classes.

How to use:

 
 class YourOwnTrack extends TrackBase 
 {
     public static abstract TrackFactory factory() 
     {
        return new TrackFactory() {
            Map properties = new HashMap();
        
            public Track newInstance() {]
                Track track = new YourOwnTrack();
                
                // You should set properties to a Track instance.
                // for example
                // 
                // Set propertySet = properties.entrySet();
                // Iterator it = propertySet.iterator();
                // while ( it.hasNext() ) {
                //     Map.Entry entry = (Map.Entry)(it.next());
                //     String key      = entry.getKey();
                //     String value    = entry.getValue();
                //
                //     track.setProperty(key, value);  // YourOwnTrack#setProperty(String, String)
                // }
                
                return track;
            }
            
            public void setProperty(String key, String value) {
                properties.put(key, value);
            }
        }
     }
 }

See also the usage examles in ToolBoxTrack.

Author:: leo

Constructor Summary
`Track.TrackFactory()`

Method Summary
`void`	`clear()`
`String`	`getProperty(String key)` get a property value.
`abstract Track`	`newInstance()` obtain a new factory instance.
`void`	`setProperty(String key, String value)` set a property.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail