org.teiid.query.processor
Interface BatchCollector.BatchProducer

All Known Implementing Classes:

AccessNode, ArrayTableNode, BatchedUpdateNode, BatchedUpdatePlan, DdlPlan, DependentAccessNode, DependentProcedureAccessNode, DependentProcedureExecutionNode, ForEachRowPlan, GroupingNode, InsertPlanExecutionNode, JoinNode, LimitNode, NullNode, PlanExecutionNode, ProcedurePlan, ProcessorPlan, ProjectIntoNode, ProjectNode, QueryProcessor, RelationalNode, RelationalPlan, SelectNode, SortNode, SubqueryAwareRelationalNode, TextTableNode, UnionAllNode, XMLPlan, XMLTableNode

Enclosing class:

BatchCollector

public static interface BatchCollector.BatchProducer

Method Summary

TupleBuffer	getFinalBuffer() return the final tuple buffer or null if not available
java.util.List	getOutputElements() Get list of resolved elements describing output columns for this plan.
boolean	hasFinalBuffer()
TupleBatch	nextBatch() Get a batch of results or possibly an Exception.

Method Detail

nextBatch

TupleBatch nextBatch()
                     throws BlockedException,
                            TeiidComponentException,
                            TeiidProcessingException

Get a batch of results or possibly an Exception.

Returns:

Batch of results

Throws:

BlockedException - indicating next batch is not available yet

TeiidComponentException - for non-business rule exception

TeiidProcessingException - for business rule exception, related to user input or modeling

getOutputElements

java.util.List getOutputElements()

Get list of resolved elements describing output columns for this plan.

Returns:

List of SingleElementSymbol

getFinalBuffer

TupleBuffer getFinalBuffer()
                           throws BlockedException,
                                  TeiidComponentException,
                                  TeiidProcessingException

return the final tuple buffer or null if not available

Returns:

Throws:

TeiidProcessingException

TeiidComponentException

BlockedException

hasFinalBuffer

boolean hasFinalBuffer()