com.asakusafw.windgate.core.util

Class VoidSourceDriver<T>

java.lang.Object

com.asakusafw.windgate.core.util.VoidSourceDriver<T>

Type Parameters:

T - the data model type

All Implemented Interfaces:

SourceDriver<T>, Preparable, Closeable, AutoCloseable

public class VoidSourceDriver<T>
extends Object
implements SourceDriver<T>

The void implementation of SourceDriver which provides nothing.

Since:

0.8.1

Constructor Summary

Constructors

Constructor and Description
VoidSourceDriver()

Method Summary

Modifier and Type	Method and Description
void	close() Disposes this object.
T	get() Gets the current data model object prepared by the SourceDriver.next() method.
boolean	next() Returns true iff the next data model object exists, and then the SourceDriver.get() method returns its object.
void	prepare() Prepares this driver to invoke SourceDriver.next() method.

Methods inherited from class java.lang.Object

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

Constructor Detail

VoidSourceDriver

public VoidSourceDriver()

Method Detail

prepare

public void prepare()

Description copied from interface: SourceDriver

Prepares this driver to invoke SourceDriver.next() method. This method will be invoked before SourceDriver.next() only once. This operation can execute only on the same thread as created this object.

Specified by:

prepare in interface SourceDriver<T>

Specified by:

prepare in interface Preparable

next

public boolean next()

Description copied from interface: SourceDriver

Returns true iff the next data model object exists, and then the SourceDriver.get() method returns its object. This operation can execute only on the same thread as created this object.

Specified by:

next in interface SourceDriver<T>

Returns:

true if the next data model object exists, otherwise false

get

public T get()

Description copied from interface: SourceDriver

Gets the current data model object prepared by the SourceDriver.next() method. This operation can execute only on the same thread as created this object.

Specified by:

get in interface SourceDriver<T>

Returns:

the next data model object

See Also:

SourceDriver.next()

close

public void close()

Description copied from interface: SourceDriver

Disposes this object. This operation can execute only on the same thread as created this object.

Specified by:

close in interface SourceDriver<T>

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable