org.apache.openjpa.lib.meta
Class MetaDataIteratorChain

java.lang.Object
  org.apache.openjpa.lib.meta.MetaDataIteratorChain

All Implemented Interfaces:

MetaDataIterator, Closeable

Direct Known Subclasses:

ClasspathMetaDataIterator

public class MetaDataIteratorChain
extends Object
implements MetaDataIterator

Metadata iterator that combines several iterators.

Author:

Abe White

Constructor Summary

MetaDataIteratorChain()
Default constructor.

MetaDataIteratorChain(MetaDataIterator itr1, MetaDataIterator itr2)
Combine two iterators.

Method Summary

void	addIterator(MetaDataIterator itr) Add an iterator to the chain.
void	close() Close the resources used by this iterator.
File	getFile() Return the last-iterated metadata resource content as a file, or null if not an extant file.
InputStream	getInputStream() Return the last-iterated metadata resource content as a stream.
boolean	hasNext() Return whether there is another resource to iterate over.
Object	next() Return the next metadata resource.

Methods inherited from class java.lang.Object

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

Constructor Detail

MetaDataIteratorChain

public MetaDataIteratorChain()

Default constructor.

MetaDataIteratorChain

public MetaDataIteratorChain(MetaDataIterator itr1,
                             MetaDataIterator itr2)

Combine two iterators.

Method Detail

addIterator

public void addIterator(MetaDataIterator itr)

Add an iterator to the chain.

hasNext

public boolean hasNext()
                throws IOException

Description copied from interface: MetaDataIterator

Return whether there is another resource to iterate over.

Specified by:

hasNext in interface MetaDataIterator

Throws:

IOException

next

public Object next()
            throws IOException

Description copied from interface: MetaDataIterator

Return the next metadata resource.

Specified by:

next in interface MetaDataIterator

Throws:

IOException

getInputStream

public InputStream getInputStream()
                           throws IOException

Description copied from interface: MetaDataIterator

Return the last-iterated metadata resource content as a stream.

Specified by:

getInputStream in interface MetaDataIterator

Throws:

IOException

getFile

public File getFile()
             throws IOException

Description copied from interface: MetaDataIterator

Return the last-iterated metadata resource content as a file, or null if not an extant file.

Specified by:

getFile in interface MetaDataIterator

Throws:

IOException

close

public void close()

Description copied from interface: MetaDataIterator

Close the resources used by this iterator.

Specified by:

close in interface MetaDataIterator

Specified by:

close in interface Closeable