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Java Source Code / Java Documentation » GIS » GeoTools 2.4.1 » org.geotools.data

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.geotools.data .AbstractFeatureSource

org.geotools.data .AbstractFeatureStore

org.geotools.data .AbstractFeatureLocking

All known Subclasses:   org.geotools.data.property .PropertyFeatureSource,
AbstractFeatureLocking
abstract public class AbstractFeatureLocking extends AbstractFeatureStore implements FeatureLocking(Code)
A Starting point for your own FeatureLocking implementations.
This class extends AbstractFeatureSource and depends on getDataStore().
The implementation of the following functions depends on getDataStore().getLockingManger() not being null:

lockFeatures( Query )

unLockFeatures( Query )

releaseLock( AuthorizationID )

refreshLock( AuthorizationID )

FeatureStores that have provided their own locking to will need to override the above methods, or provide a custom LockingManger.

author:
   Jody Garnett, Refractions Research

Field Summary
FeatureLock featureLock


Constructor Summary
public AbstractFeatureLocking()

public AbstractFeatureLocking(Set hints)


Method Summary
public int lockFeatures()

public int lockFeatures(Filter filter)
     Lock features matching filter.
public int lockFeatures(Query query)
     Lock features matching Query.
public void setFeatureLock(FeatureLock lock)
     Provide a FeatureLock for locking opperations to opperate against.
public void unLockFeatures()
     Unlock all Features.
public void unLockFeatures(Filter filter)
     Unlock Features specified by filter.
public void unLockFeatures(Query query)
     Unlock features specified by the query.

Field Detail
featureLock
FeatureLock featureLock(Code)

Constructor Detail
AbstractFeatureLocking
public AbstractFeatureLocking()(Code)

AbstractFeatureLocking
public AbstractFeatureLocking(Set hints)(Code)
This constructors allows to set the supported hints
Parameters:
  hints -

Method Detail
lockFeatures
public int lockFeatures() throws IOException(Code)
Lock all Features Number of Locked features
throws:
  IOException -
See Also:   org.geotools.data.FeatureLocking.lockFeatures

lockFeatures
public int lockFeatures(Filter filter) throws IOException(Code)
Lock features matching filter.
Parameters:
  filter - Number of locked Features
throws:
  IOException -

lockFeatures
public int lockFeatures(Query query) throws IOException(Code)
Lock features matching Query.
FeatureStores that have provided their own locking to will need to override this method.

Parameters:
  query - Number of locked Features
throws:
  IOException - If we could not determine which feature to lockbased on Query
throws:
  UnsupportedOperationException - When DataStore does not provide aLockingManager
throws:
  DataSourceException - If feature to be locked does not exist
See Also:   org.geotools.data.FeatureLocking.lockFeatures(org.geotools.data.Query)

setFeatureLock
public void setFeatureLock(FeatureLock lock)(Code)
Provide a FeatureLock for locking opperations to opperate against.
Initial Transactional duration locks can be restored with setFeatureLock( FetaureLock.TRANSACTION )

Parameters:
  lock - FeatureLock (or FeatureLock.TRANSACTION );
throws:
  NullPointerException - If lock was null
See Also:   org.geotools.data.FeatureLocking.setFeatureLock(org.geotools.data.FeatureLock)

unLockFeatures
public void unLockFeatures() throws IOException(Code)
Unlock all Features.
throws:
  IOException -
See Also:   org.geotools.data.FeatureLocking.unLockFeatures

unLockFeatures
public void unLockFeatures(Filter filter) throws IOException(Code)
Unlock Features specified by filter.
Parameters:
  filter -
throws:
  IOException -

unLockFeatures
public void unLockFeatures(Query query) throws IOException(Code)
Unlock features specified by the query.
FeatureStores that have provided their own locking to will need to override this method.

Parameters:
  query -
throws:
  IOException -
throws:
  UnsupportedOperationException - If lockingManager is not providedby DataStore subclass
throws:
  DataSourceException - Filter describes an unlocked Feature, orauthorization not held
See Also:   org.geotools.data.FeatureLocking.unLockFeatures(org.geotools.data.Query)

Fields inherited from org.geotools.data.AbstractFeatureStore
protected Transaction transaction(Code)(Java Doc)

Methods inherited from org.geotools.data.AbstractFeatureStore
public Set addFeatures(FeatureReader reader) throws IOException(Code)(Java Doc)
public Set addFeatures(FeatureCollection collection) throws IOException(Code)(Java Doc)
public Transaction getTransaction()(Code)(Java Doc)
public void modifyFeatures(AttributeType type, Object value, Filter filter) throws IOException(Code)(Java Doc)
public void modifyFeatures(AttributeType[] type, Object[] value, Filter filter) throws IOException(Code)(Java Doc)
public void removeFeatures(Filter filter) throws IOException(Code)(Java Doc)
public void setFeatures(FeatureReader reader) throws IOException(Code)(Java Doc)
public void setTransaction(Transaction transaction)(Code)(Java Doc)

Fields inherited from org.geotools.data.AbstractFeatureSource
protected Set hints(Code)(Java Doc)

Methods inherited from org.geotools.data.AbstractFeatureSource
public Envelope getBounds() throws IOException(Code)(Java Doc)
public Envelope getBounds(Query query) throws IOException(Code)(Java Doc)
public int getCount(Query query) throws IOException(Code)(Java Doc)
public FeatureCollection getFeatures(Query query) throws IOException(Code)(Java Doc)
public FeatureCollection getFeatures(Filter filter) throws IOException(Code)(Java Doc)
public FeatureCollection getFeatures() throws IOException(Code)(Java Doc)
public Set getSupportedHints()(Code)(Java Doc)
public Transaction getTransaction()(Code)(Java Doc)
protected Query namedQuery(Query query)(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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