it.unimi.di.mg4j.document
Class JdbcDocumentCollection.JdbcDocumentIterator

java.lang.Object
  it.unimi.di.mg4j.document.AbstractDocumentIterator
      it.unimi.di.mg4j.document.JdbcDocumentCollection.JdbcDocumentIterator

All Implemented Interfaces:

DocumentIterator, SafelyCloseable, Closeable

Enclosing class:

JdbcDocumentCollection

protected class JdbcDocumentCollection.JdbcDocumentIterator
extends AbstractDocumentIterator

An iterator over the whole collection that performs a single DBMS transaction.

Method Summary

void	close() Closes this document iterator, releasing all resources.
Document	nextDocument() Returns the next document.

Methods inherited from class it.unimi.di.mg4j.document.AbstractDocumentIterator

finalize

Methods inherited from class java.lang.Object

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

Method Detail

nextDocument

public Document nextDocument()
                      throws IOException

Description copied from interface: DocumentIterator

Returns the next document.

Returns:

the next document, or null if there are no other documents.

Throws:

IOException

close

public void close()
           throws IOException

Description copied from interface: DocumentIterator

Closes this document iterator, releasing all resources.

You should always call this method after having finished with this iterator. Implementations are invited to call this method in a finaliser as a safety net, but since there is no guarantee as to when finalisers are invoked, you should not depend on this behaviour.

Specified by:

close in interface DocumentIterator

Specified by:

close in interface Closeable

Overrides:

close in class AbstractDocumentIterator

Throws:

IOException