com.redhat.thermostat.storage.core

Interface Cursor<T extends Pojo>

public interface Cursor<T extends Pojo>

Allows traversing over objects obtained from Storage.

See Also:

PreparedStatement.executeQuery()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	hasNext()
T	next() Retrieves the next element from the result set.

Method Detail

hasNext

boolean hasNext()

Returns:

true if there are more elements, false otherwise.

Throws:

StorageException - If there was a problem with underlying Storage.

next

T next()

Retrieves the next element from the result set. Users are advised to call hasNext() prior to calling this method.

Returns:

The next element of the result set. null if there is no next element.

Please note: This will change with the next release. In the next major release a NoSuchElementException will be thrown if there is no next element. I.e. hasNext() returns false, but next() is still being called.

Throws:

StorageException - If there was a problem with underlying Storage.