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public interface TupleSource
A cursored source of tuples. The implementation will likely be closely
bound to a BufferManager
implementation - it will work with it
to use TupleBatches
behind the scenes.
Method Summary | |
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void |
closeSource()
Closes the Tuple Source. |
java.util.List<SingleElementSymbol> |
getSchema()
Returns the List of ElementSymbol describing the Tuple Source |
java.util.List<?> |
nextTuple()
Returns the next tuple |
Method Detail |
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java.util.List<SingleElementSymbol> getSchema()
java.util.List<?> nextTuple() throws MetaMatrixComponentException, MetaMatrixProcessingException
null
if
there are no more tuples.
MetaMatrixComponentException
- indicating a non-business
exception such as a communication exception, or other such
nondeterministic exception
MetaMatrixProcessingException
void closeSource() throws MetaMatrixComponentException
MetaMatrixComponentException
- indicating a non-business
exception such as a communication exception, or other such
nondeterministic exception
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