org.gcube.datatransformation.datatransformationlibrary.datahandlers.impl
Class CollectionDataSource

java.lang.Object
  java.lang.Thread
      org.gcube.datatransformation.datatransformationlibrary.datahandlers.impl.CollectionDataSource

All Implemented Interfaces:

Runnable, org.gcube.datatransformation.datatransformationlibrary.datahandlers.ContentTypeDataSource, org.gcube.datatransformation.datatransformationlibrary.datahandlers.DataHandler, org.gcube.datatransformation.datatransformationlibrary.datahandlers.DataSource

public class CollectionDataSource
extends Thread
implements org.gcube.datatransformation.datatransformationlibrary.datahandlers.DataSource, org.gcube.datatransformation.datatransformationlibrary.datahandlers.ContentTypeDataSource

Author:

Dimitris Katris, NKUA

This DataSource fetches DataElements from a content collection.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

CollectionDataSource(String input, org.gcube.datatransformation.datatransformationlibrary.model.Parameter[] inputParameters)

Method Summary

void	close()
boolean	hasNext()
boolean	isClosed()
org.gcube.datatransformation.datatransformationlibrary.dataelements.DataElement	next()
org.gcube.datatransformation.datatransformationlibrary.model.ContentType	nextContentType()
void	run()

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

CollectionDataSource

public CollectionDataSource(String input,
                            org.gcube.datatransformation.datatransformationlibrary.model.Parameter[] inputParameters)
                     throws Exception

Parameters:

input - The input value of the DataSource.

inputParameters - The input parameters of the DataSource.

Throws:

Exception - If data source could not be initialized

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface org.gcube.datatransformation.datatransformationlibrary.datahandlers.ContentTypeDataSource

Specified by:

hasNext in interface org.gcube.datatransformation.datatransformationlibrary.datahandlers.DataSource

Returns:

true if the DataSource has more elements.

See Also:

DataSource.hasNext()

next

public org.gcube.datatransformation.datatransformationlibrary.dataelements.DataElement next()

Specified by:

next in interface org.gcube.datatransformation.datatransformationlibrary.datahandlers.DataSource

Returns:

the next element of the DataSource.

See Also:

DataSource.next()

run

public void run()

Specified by:

run in interface Runnable

Overrides:

run in class Thread

See Also:

Thread.run()

close

public void close()

Specified by:

close in interface org.gcube.datatransformation.datatransformationlibrary.datahandlers.DataHandler

See Also:

DataHandler.close()

isClosed

public boolean isClosed()

Specified by:

isClosed in interface org.gcube.datatransformation.datatransformationlibrary.datahandlers.DataHandler

Returns:

true if the DataHandler has been closed.

See Also:

DataHandler.isClosed()

nextContentType

public org.gcube.datatransformation.datatransformationlibrary.model.ContentType nextContentType()

Specified by:

nextContentType in interface org.gcube.datatransformation.datatransformationlibrary.datahandlers.ContentTypeDataSource