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

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

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.geotools.data.jdbc.datasource .DataSourceFinder

DataSourceFinder

final public class DataSourceFinder (Code)

Enable programs to find all available DataSourceFactorySpi implementations.

In addition to implementing this interface data souces should have a services file:
META-INF/services/org.geotools.data.jdbc.DataSourceFactorySpi

The file should contain a single line which gives the full name of the implementing class.

Example:
org.geotools.data.jdbc.DBCPDataSourceFactory

Field Summary
final protected static Logger	LOGGER The logger for the filter module.

Method Summary
public static synchronized Iterator	getAvailableDataSources() Finds all implemtaions of DataStoreFactory which have registered using the services mechanism, and that have the appropriate libraries on the classpath.
public static synchronized DataSource	getDataSource(Map params) Checks each available datasource implementation in turn and returns the first one which claims to support the resource identified by the params object. Parameters: params - A Map object which contains a defenition of the resource to connect to.
public static synchronized UnWrapper	getUnWrapper(Connection conn) Checks each available datasource implementation in turn and returns the first one which claims to support the resource identified by the params object. Parameters: params - A Map object which contains a defenition of the resource to connect to.
public static synchronized UnWrapper	getUnWrapper(Statement st) Checks each available UnWrapper implementation in turn and returns the first one which claims to support the resource identified by the params object. Parameters: params - A Map object which contains a defenition of the resource to connect to.
public static synchronized Iterator	getUnWrappers() Finds all implemtaions of DataStoreFactory which have registered using the services mechanism, and that have the appropriate libraries on the classpath.
public static synchronized void	scanForPlugins() Scans for factory plug-ins on the application class path.

Field Detail

LOGGER
final protected static Logger LOGGER(Code)
	The logger for the filter module.

Method Detail

getAvailableDataSources
public static synchronized Iterator getAvailableDataSources()(Code)
	Finds all implemtaions of DataStoreFactory which have registered using the services mechanism, and that have the appropriate libraries on the classpath. An iterator over all discovered datastores which have registered factories, and whoseavailable method returns true.

getDataSource
public static synchronized DataSource getDataSource(Map params) throws IOException(Code)
	Checks each available datasource implementation in turn and returns the first one which claims to support the resource identified by the params object. Parameters: params - A Map object which contains a defenition of the resource to connect to. for filebased resources the property 'url' should be set within this Map. The first datasource which claims to process the required resource, returns null ifnone can be found. throws: IOException - If a suitable loader can be found, but it can not be attached to the specifiedresource without errors.

getUnWrapper
public static synchronized UnWrapper getUnWrapper(Connection conn) throws IOException(Code)
	Checks each available datasource implementation in turn and returns the first one which claims to support the resource identified by the params object. Parameters: params - A Map object which contains a defenition of the resource to connect to. for filebased resources the property 'url' should be set within this Map. The first datasource which claims to process the required resource, returns null ifnone can be found. throws: IOException - If a suitable loader can be found, but it can not be attached to the specifiedresource without errors.

getUnWrapper
public static synchronized UnWrapper getUnWrapper(Statement st) throws IOException(Code)
	Checks each available UnWrapper implementation in turn and returns the first one which claims to support the resource identified by the params object. Parameters: params - A Map object which contains a defenition of the resource to connect to. for filebased resources the property 'url' should be set within this Map. The first datasource which claims to process the required resource, returns null ifnone can be found. throws: IOException - If a suitable loader can be found, but it can not be attached to the specifiedresource without errors.

getUnWrappers
public static synchronized Iterator getUnWrappers()(Code)
	Finds all implemtaions of DataStoreFactory which have registered using the services mechanism, and that have the appropriate libraries on the classpath. An iterator over all discovered datastores which have registered factories, and whoseavailable method returns true.

scanForPlugins
public static synchronized void scanForPlugins()(Code)
	Scans for factory plug-ins on the application class path. This method is needed because the application class path can theoretically change, or additional plug-ins may become available. Rather than re-scanning the classpath on every invocation of the API, the class path is scanned automatically only on the first invocation. Clients can call this method to prompt a re-scan. Thus this method need only be invoked by sophisticated applications which dynamically make new plug-ins available at runtime.

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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