com.vividsolutions.jump.workbench.model.cache

Class ThreadSafeFeatureCollectionWrapper

java.lang.Object

com.vividsolutions.jump.workbench.model.cache.ThreadSafeFeatureCollectionWrapper

All Implemented Interfaces:

FeatureCollection

public class ThreadSafeFeatureCollectionWrapper
extends java.lang.Object
implements FeatureCollection

Thread safety is achieved by (1) synchronizing the methods, and (2) creating new Collections in #getFeatures, #query, and #iterator to prevent ConcurrentModificationExceptions.

Constructor Summary

Constructors

Constructor and Description
ThreadSafeFeatureCollectionWrapper(FeatureCollection featureCollection)

Method Summary

Methods

Modifier and Type	Method and Description
void	add(Feature feature) Adds a feature to this collection.
void	addAll(java.util.Collection features) Adds multiple features to this collection.
void	clear() Removes all features from this collection.
com.vividsolutions.jts.geom.Envelope	getEnvelope() Returns the bounds of this collection.
java.util.List	getFeatures() Returns an unmodifiable List of the features in this collection
FeatureSchema	getFeatureSchema() Returns information about this FeatureCollection
boolean	isEmpty() Returns whether this collection has no features.
java.util.Iterator	iterator() Returns an Iterator over the features
java.util.List	query(com.vividsolutions.jts.geom.Envelope envelope) A quick search for features, using an envelope comparison.
java.util.Collection	remove(com.vividsolutions.jts.geom.Envelope env) Removes the features which intersect the given envelope
void	remove(Feature feature) Removes a feature from this collection.
void	removeAll(java.util.Collection features) Removes multiple features from this collection.
int	size() Returns the number of features in this collection.

Methods inherited from class java.lang.Object

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

Constructor Detail

ThreadSafeFeatureCollectionWrapper

public ThreadSafeFeatureCollectionWrapper(FeatureCollection featureCollection)

Method Detail

getFeatureSchema

public FeatureSchema getFeatureSchema()

Description copied from interface: FeatureCollection

Returns information about this FeatureCollection

Specified by:

getFeatureSchema in interface FeatureCollection

Returns:

the types of the attributes of the features in this collection

getEnvelope

public com.vividsolutions.jts.geom.Envelope getEnvelope()

Description copied from interface: FeatureCollection

Returns the bounds of this collection.

Specified by:

getEnvelope in interface FeatureCollection

Returns:

the smallest Envelope enclosing all the Features in this collection

size

public int size()

Description copied from interface: FeatureCollection

Returns the number of features in this collection.

Specified by:

size in interface FeatureCollection

Returns:

the number of features in this collection

isEmpty

public boolean isEmpty()

Description copied from interface: FeatureCollection

Returns whether this collection has no features.

Specified by:

isEmpty in interface FeatureCollection

Returns:

whether or not the size of this collection is 0

getFeatures

public java.util.List getFeatures()

Description copied from interface: FeatureCollection

Returns an unmodifiable List of the features in this collection

Specified by:

getFeatures in interface FeatureCollection

Returns:

a read-only view of all the features

iterator

public java.util.Iterator iterator()

Description copied from interface: FeatureCollection

Returns an Iterator over the features

Specified by:

iterator in interface FeatureCollection

Returns:

an Iterator over the features

query

public java.util.List query(com.vividsolutions.jts.geom.Envelope envelope)

Description copied from interface: FeatureCollection

A quick search for features, using an envelope comparison.

Specified by:

query in interface FeatureCollection

Parameters:

envelope - the envelope to query against

Returns:

features whose envelopes intersect the given envelope

add

public void add(Feature feature)

Description copied from interface: FeatureCollection

Adds a feature to this collection.

Specified by:

add in interface FeatureCollection

Parameters:

feature - a Feature to add to the end of this collection

addAll

public void addAll(java.util.Collection features)

Description copied from interface: FeatureCollection

Adds multiple features to this collection. To be preferred over #add for adding multiple features, because in some systems (like the JUMP Workbench) fewer events will be fired.

Specified by:

addAll in interface FeatureCollection

removeAll

public void removeAll(java.util.Collection features)

Description copied from interface: FeatureCollection

Removes multiple features from this collection. To be preferred over #remove for removing multiple features, because in some systems (like the JUMP Workbench) fewer events will be fired.

Specified by:

removeAll in interface FeatureCollection

remove

public void remove(Feature feature)

Description copied from interface: FeatureCollection

Removes a feature from this collection.

Specified by:

remove in interface FeatureCollection

Parameters:

feature - a Feature to remove from this collection

clear

public void clear()

Description copied from interface: FeatureCollection

Removes all features from this collection.

Specified by:

clear in interface FeatureCollection

remove

public java.util.Collection remove(com.vividsolutions.jts.geom.Envelope env)

Description copied from interface: FeatureCollection

Removes the features which intersect the given envelope

Specified by:

remove in interface FeatureCollection

Returns:

the removed features