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Java Source Code / Java Documentation » GIS » GeoTools 2.4.1 » org.geotools.coverage.grid.io

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.geotools.coverage.grid.io .GridFormatFinder

GridFormatFinder

final public class GridFormatFinder (Code)

Enable programs to find all available grid format implementations.

In order to be located by this finder datasources must provide an implementation of the GridFormatFactorySpi interface.

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

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

Example:
org.geotools.data.mytype.MyTypeDataStoreFacotry

Method Summary
public static synchronized Format	findFormat(Object o) Returns a Format that is able to read a certain object.
public static synchronized Set	findFormats(Object o) Returns all the Format s that can read the supplied Object o.
public static synchronized Set	getAvailableFormats() Finds all avalaible implementations of GridFormatFactorySpi which have registered using the services mechanism, and that have the appropriate libraries on the classpath.
public static Format[]	getFormatArray() Returns an array with all available GridFormatFactorySpi implementations. It can be used toget basic information about all the available GridCoverage plugins.
public static synchronized void	scanForPlugins() Scans for factory plug-ins on the application class path.

Method Detail

findFormat
public static synchronized Format findFormat(Object o)(Code)
	Returns a Format that is able to read a certain object. If no Format is able to read such an Object we return an UnknownFormat object. It is worth to point out that this method will try to convert each format implementation to AbstractGridFormat because the original Format interface did not allow for an accept method hence we had to subclass the interface to add such method and we did so by the AbstractGridFormat abstract class. Parameters: o - the object to check for acceptance. an AbstractGridFormat that has stated to accept thisObject o or `null` in no plugins was able toaccept it.

findFormats
public static synchronized Set findFormats(Object o)(Code)
	Returns all the Format s that can read the supplied Object o. Parameters: o - is the object to search a Format that is able to read an unmodifiable Set comprising all the Formatthat can read the Object o.

getAvailableFormats
public static synchronized Set getAvailableFormats()(Code)
	Finds all avalaible implementations of GridFormatFactorySpi which have registered using the services mechanism, and that have the appropriate libraries on the classpath. An unmodifiable Set of all discovered datastores whichhave registered factories, and whose available method returnstrue.

getFormatArray

public static Format[] getFormatArray()(Code)

Returns an array with all available GridFormatFactorySpi implementations.

It can be used toget basic information about all the available GridCoverage plugins. Note that this method finds all the implemented plugins but returns only the availaible one.

A plugin could be implemented but not availaible due to missing dependencies. an array with all available GridFormatFactorySpiimplementations.

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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