Java Doc for FeatureLocking.java in  » GIS » GeoTools-2.4.1 » org » geotools » data » Java Source Code / Java DocumentationJava Source Code and Java Documentation

Features from individual shapefiles, database tables, etc. can be protected or reserved from modification through this interface.

To use please cast your FeatureSource to this interface.

 FeatureSource source = dataStore.getFeatureSource("roads");
 if( source instanceof FeatureLocking ) {
 FeatureLocking locking = (FeatureLocking) source;
 ...
 }

author:
    Jody Garnett, Refractions Research, Inc.
author:
    Ray Gallagher
author:
    Rob Hranac, TOPP
author:
    Chris Holmes, TOPP
version:
    $Id: FeatureLocking.java 22600 2006-11-04 09:37:58Z jgarnett $

To implement WFS parcial Locking retrieve your features with a query operation first before trying to lock them individually.

To implement WFS parcial Locking retrieve your features with a query operation first before trying to lock them individually.

This in in keeping with the stateful spirit of DataSource in which operations are against the "current" transaction.

To implement WFS parcial Locking retrieve your features with a query operation first before trying to lock them individually. If you are not into WFS please don't ask what parcial locking is.

To implement WFS parcial Locking retrieve your features with a query operation first before trying to lock them individually. If you are not into WFS please don't ask what parcial locking is.

The method does not prevent addFeatures() from being used (we could add a lockDataSource() method if this functionality is required.

This in in keeping with the stateful spirit of DataSource in which operations are against the "current" transaction. If a FeatureLock is not provided lock operations will only be applicable for the current transaction (they will expire on the next commit or rollback).

That is lockFeatures() operations will:

• Be recorded against the provided FeatureLock.
• Be recorded against the current transaction if no FeatureLock is provided.

Calling this method with setFeatureLock( FeatureLock.TRANSACTION ) will revert to per transaction operation.

This design allows for the following:

• cross DataSource FeatureLock usage
• not having pass in the same FeatureLock object multiple times

Authorization must be provided prior before calling this method.

 void releaseLock( String lockId, LockingDataSource ds ){
 ds.setAuthorization( "LOCK534" );
 ds.unLockFeatures();
 }
 

Authorization must be provided prior before calling this method.

Authorization must be provided prior before calling this method.