Package org.geotools.data.transform

Class TransformFeatureLocking

Object

TransformFeatureSource

TransformFeatureStore

TransformFeatureLocking

All Implemented Interfaces:

FeatureLocking<SimpleFeatureType,SimpleFeature>, FeatureSource<SimpleFeatureType,SimpleFeature>, FeatureStore<SimpleFeatureType,SimpleFeature>, SimpleFeatureLocking, SimpleFeatureSource, SimpleFeatureStore

public class TransformFeatureLocking
extends TransformFeatureStore
implements SimpleFeatureLocking

Nested Class Summary

Nested classes/interfaces inherited from interface FeatureLocking

FeatureLocking.Response

Field Summary

Fields inherited from class TransformFeatureStore

invertedTransformer, store

Fields inherited from class TransformFeatureSource

FF, LOGGER, source, transformer

Constructor Summary

Constructors

Constructor	Description
TransformFeatureLocking(SimpleFeatureLocking locking, Name name, List<Definition> definitions)

Method Summary

Modifier and Type	Method	Description
int	lockFeatures()	FeatureLock all Features.
int	lockFeatures(Query query)	FeatureLock features described by Query.
int	lockFeatures(Filter filter)	FeatureLock features described by Filter.
void	setFeatureLock(FeatureLock lock)	All locking operations will operate against the provided lock.
void	unLockFeatures()	Unlocks all Features.
void	unLockFeatures(Query query)	Unlock Features denoted by provided query.
void	unLockFeatures(Filter filter)	Unlock Features denoted by provided filter.

Methods inherited from class TransformFeatureStore

addFeatures, getTransaction, modifyFeatures, modifyFeatures, modifyFeatures, modifyFeatures, removeFeatures, setFeatures, setTransaction

Methods inherited from class TransformFeatureSource

addFeatureListener, getBounds, getBounds, getCount, getDataStore, getFeatures, getFeatures, getFeatures, getInfo, getName, getQueryCapabilities, getSchema, getSupportedHints, removeFeatureListener

Methods inherited from class Object

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

Methods inherited from interface FeatureSource

addFeatureListener, getBounds, getBounds, getCount, getDataStore, getInfo, getName, getQueryCapabilities, getSchema, getSupportedHints, removeFeatureListener

Methods inherited from interface FeatureStore

addFeatures, getTransaction, modifyFeatures, modifyFeatures, removeFeatures, setFeatures, setTransaction

Methods inherited from interface SimpleFeatureStore

getFeatures, getFeatures, getFeatures, modifyFeatures, modifyFeatures

Constructor Details

TransformFeatureLocking

public TransformFeatureLocking(SimpleFeatureLocking locking,
 Name name,
 List<Definition> definitions)
                        throws IOException

Throws:

IOException

Method Details

setFeatureLock

public void setFeatureLock(FeatureLock lock)

Description copied from interface: FeatureLocking

All locking operations will operate against the provided lock.

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

Specified by:

setFeatureLock in interface FeatureLocking<SimpleFeatureType,SimpleFeature>

Parameters:

lock - FeatureLock configuration including authorization and requested duration

lockFeatures

public int lockFeatures(Query query)
                 throws IOException

Description copied from interface: FeatureLocking

FeatureLock features described by Query.

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.

Specified by:

lockFeatures in interface FeatureLocking<SimpleFeatureType,SimpleFeature>

Parameters:

query - Query describing the features to lock

Returns:

Number of features locked

Throws:

IOException - Thrown if anything goes wrong

lockFeatures

public int lockFeatures(Filter filter)
                 throws IOException

Description copied from interface: FeatureLocking

FeatureLock features described by Filter.

To implement WFS partial 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 partial locking is.

Specified by:

lockFeatures in interface FeatureLocking<SimpleFeatureType,SimpleFeature>

Parameters:

filter - Filter describing the features to lock

Returns:

Number of features locked

Throws:

IOException - Thrown if anything goes wrong

lockFeatures

public int lockFeatures()
                 throws IOException

Description copied from interface: FeatureLocking

FeatureLock all Features.

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

Specified by:

lockFeatures in interface FeatureLocking<SimpleFeatureType,SimpleFeature>

Returns:

Number of Features locked by this opperation

Throws:

IOException

unLockFeatures

public void unLockFeatures()
                    throws IOException

Description copied from interface: FeatureLocking

Unlocks all Features.

Authorization must be provided prior before calling this method.

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

Specified by:

unLockFeatures in interface FeatureLocking<SimpleFeatureType,SimpleFeature>

Throws:

IOException

unLockFeatures

public void unLockFeatures(Filter filter)
                    throws IOException

Description copied from interface: FeatureLocking

Unlock Features denoted by provided filter.

Authorization must be provided prior before calling this method.

Specified by:

unLockFeatures in interface FeatureLocking<SimpleFeatureType,SimpleFeature>

Throws:

IOException

unLockFeatures

public void unLockFeatures(Query query)
                    throws IOException

Description copied from interface: FeatureLocking

Unlock Features denoted by provided query.

Authorization must be provided prior before calling this method.

Specified by:

unLockFeatures in interface FeatureLocking<SimpleFeatureType,SimpleFeature>

Parameters:

query - Specifies fatures to unlock

Throws:

IOException