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

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.geotools.data .AbstractDataStore

org.geotools.data.memory .MemoryDataStore

MemoryDataStore

public class MemoryDataStore extends AbstractDataStore (Code)

This is an example implementation of a DataStore used for testing.

It serves as an example implementation of:

FeatureListenerManager use: allows handling of FeatureEvents

This class will also illustrate the use of In-Process locking when the time comes.

author:
jgarnett

Field Summary
protected Map	memory Memory holds Map of Feature by fid by typeName.
protected Map	schema

Constructor Summary
public	MemoryDataStore()
public	MemoryDataStore(FeatureCollection collection)
public	MemoryDataStore(Feature[] array)
public	MemoryDataStore(FeatureReader reader)
public	MemoryDataStore(FeatureIterator reader)

Method Summary
public void	addFeature(Feature feature) Adds a single Feature to the correct typeName entry.
public void	addFeatures(FeatureReader reader) Configures MemoryDataStore with FeatureReader.
public void	addFeatures(FeatureIterator reader) Configures MemoryDataStore with FeatureReader.
public void	addFeatures(Collection collection) Configures MemoryDataStore with Collection.
public void	addFeatures(Feature[] features) Configures MemoryDataStore with feature array.
public FeatureWriter	createFeatureWriter(String typeName, Transaction transaction) Provides FeatureWriter over the entire contents of `typeName`.
public void	createSchema(FeatureType featureType) Adds support for a new featureType to MemoryDataStore.
protected Map	features(String typeName) Access featureMap for typeName.
protected Envelope	getBounds(Query query)
protected int	getCount(Query query)
public FeatureReader	getFeatureReader(String typeName) Provides FeatureReader over the entire contents of `typeName`.
public FeatureType	getSchema(String typeName) FeatureType access by `typeName`.
public String[]	getTypeNames() List of available types provided by this DataStore.

Field Detail

memory
protected Map memory(Code)
	Memory holds Map of Feature by fid by typeName.

schema
protected Map schema(Code)
	Schema holds FeatureType by typeName

Constructor Detail

MemoryDataStore
public MemoryDataStore()(Code)

MemoryDataStore
public MemoryDataStore(FeatureCollection collection)(Code)

MemoryDataStore
public MemoryDataStore(Feature[] array)(Code)

MemoryDataStore
public MemoryDataStore(FeatureReader reader) throws IOException(Code)

MemoryDataStore
public MemoryDataStore(FeatureIterator reader) throws IOException(Code)

Method Detail

addFeature

public void addFeature(Feature feature)(Code)

Adds a single Feature to the correct typeName entry.

This is an internal opperation used for setting up MemoryDataStore - please use FeatureWriter for generatl use.

This method is willing to create new FeatureTypes for MemoryDataStore.

Parameters:
feature - Individual feature to add

addFeatures
public void addFeatures(FeatureReader reader) throws IOException(Code)
	Configures MemoryDataStore with FeatureReader. Parameters: reader - New contents to add throws: IOException - If problems are encountered while adding throws: DataSourceException - See IOException

addFeatures
public void addFeatures(FeatureIterator reader) throws IOException(Code)
	Configures MemoryDataStore with FeatureReader. Parameters: reader - New contents to add throws: IOException - If problems are encountered while adding throws: DataSourceException - See IOException

addFeatures
public void addFeatures(Collection collection)(Code)
	Configures MemoryDataStore with Collection. You may use this to create a MemoryDataStore from a FeatureCollection. Parameters: collection - Collection of features to add throws: IllegalArgumentException - If provided collection is empty

addFeatures
public void addFeatures(Feature[] features)(Code)
	Configures MemoryDataStore with feature array. Parameters: features - Array of features to add throws: IllegalArgumentException - If provided feature array is empty

createFeatureWriter
public FeatureWriter createFeatureWriter(String typeName, Transaction transaction) throws IOException(Code)
	Provides FeatureWriter over the entire contents of `typeName`. Implements getFeatureWriter contract for AbstractDataStore. Parameters: typeName - name of FeatureType we wish to modify FeatureWriter of entire contents of typeName throws: IOException - If writer cannot be obtained for typeName throws: DataSourceException - See IOException See Also: org.geotools.data.AbstractDataStore.getFeatureSource(java.lang.String)

createSchema
public void createSchema(FeatureType featureType) throws IOException(Code)
	Adds support for a new featureType to MemoryDataStore. FeatureTypes are stored by typeName, an IOException will be thrown if the requested typeName is already in use. Parameters: featureType - FeatureType to be added throws: IOException - If featureType already exists See Also: org.geotools.data.DataStore.createSchema(org.geotools.feature.FeatureType)

features
protected Map features(String typeName) throws IOException(Code)
	Access featureMap for typeName. Parameters: typeName - A Map of Features by FID throws: IOException - If typeName cannot be found

getBounds
protected Envelope getBounds(Query query) throws IOException(Code)
	See Also: org.geotools.data.AbstractDataStore.getBounds(java.lang.Stringorg.geotools.data.Query)

getCount
protected int getCount(Query query) throws IOException(Code)
	See Also: org.geotools.data.AbstractDataStore.getCount(java.lang.Stringorg.geotools.data.Query)

getFeatureReader
public FeatureReader getFeatureReader(String typeName) throws IOException(Code)
	Provides FeatureReader over the entire contents of `typeName`. Implements getFeatureReader contract for AbstractDataStore. Parameters: typeName - throws: IOException - If typeName could not be found throws: DataSourceException - See IOException See Also: org.geotools.data.AbstractDataStore.getFeatureSource(java.lang.String)

getSchema
public FeatureType getSchema(String typeName) throws IOException(Code)
	FeatureType access by `typeName`. Parameters: typeName - FeatureType for `typeName` throws: IOException - throws: SchemaNotFoundException - DOCUMENT ME! See Also: org.geotools.data.AbstractDataStore.getSchema(java.lang.String)

getTypeNames
public String[] getTypeNames()(Code)
	List of available types provided by this DataStore. Array of type names See Also: org.geotools.data.AbstractDataStore.getFeatureTypes

Fields inherited from org.geotools.data.AbstractDataStore

final protected static Logger LOGGER(Code)(Java Doc)
final protected boolean isWriteable(Code)(Java Doc)
public FeatureListenerManager listenerManager(Code)(Java Doc)

Methods inherited from org.geotools.data.AbstractDataStore

protected FeatureWriter createFeatureWriter(String typeName, Transaction transaction) throws IOException(Code)(Java Doc)
protected InProcessLockingManager createLockingManager()(Code)(Java Doc)
protected Map createMetadata(String typeName)(Code)(Java Doc)
public void createSchema(FeatureType featureType) throws IOException(Code)(Java Doc)
public void dispose()(Code)(Java Doc)
protected Envelope getBounds(Query query) throws IOException(Code)(Java Doc)
protected int getCount(Query query) throws IOException(Code)(Java Doc)
abstract protected FeatureReader getFeatureReader(String typeName) throws IOException(Code)(Java Doc)
public FeatureReader getFeatureReader(Query query, Transaction transaction) throws IOException(Code)(Java Doc)
protected FeatureReader getFeatureReader(String typeName, Query query) throws IOException(Code)(Java Doc)
public FeatureSource getFeatureSource(String typeName) throws IOException(Code)(Java Doc)
protected FeatureWriter getFeatureWriter(String typeName) throws IOException(Code)(Java Doc)
public FeatureWriter getFeatureWriter(String typeName, Filter filter, Transaction transaction) throws IOException(Code)(Java Doc)
public FeatureWriter getFeatureWriter(String typeName, Transaction transaction) throws IOException(Code)(Java Doc)
public FeatureWriter getFeatureWriterAppend(String typeName, Transaction transaction) throws IOException(Code)(Java Doc)
public LockingManager getLockingManager()(Code)(Java Doc)
abstract public FeatureType getSchema(String typeName) throws IOException(Code)(Java Doc)
protected Set getSupportedHints()(Code)(Java Doc)
abstract public String[] getTypeNames() throws IOException(Code)(Java Doc)
protected Filter getUnsupportedFilter(String typeName, Filter filter)(Code)(Java Doc)
public FeatureSource getView(Query query) throws IOException, SchemaException(Code)(Java Doc)
public void updateSchema(String typeName, FeatureType featureType)(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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