public class Tee extends CopyOp
Pipeline operator copies its source to both sink and altSink. The sink and
the altSink must both be ancestors of the operator. The sinkRef MAY be
omitted when one of the targets is the immediate parent of the TEE.
In truth maintenance we establish a focus store which is brought to a fixed point by applying some rules and a transitive closure operator. Once the fixed point is reached, the assertions in the focus store are either inserted onto the database or (for retraction) removed from database unless a proof can be found that an assertion is still entailed.
slice := SLICE( join2 )[bopId=3] join2 := JOIN( join1, bar.spo(A,loves,B))[bopId=2] join1 := JOIN( tee, foo.spo(A,loves,B))[bopId=1; sinkRef=3] tee := TEE( ... )[altSinkRef=2],The
Teecopies its inputs to both the default sink (its parent, which is join1) and the alternate sink (join2). join1 routes its outputs around join2, sending them directly to their lowest common ancestor. This has the effect of creating a union of their outputs at the receiver. In this example, a
Sliceis used as the target for both of the join operators. Since this is a pipeline construction, the joins will be evaluated in parallel as intermediate results arrive for those operators. Normally the
Teewill be fed by a
|Constructor and Description|
Shallow copy constructor.
Deep copy constructor.
assertAtOnceJavaHeapOp, assertMaxParallelOne, getChunkCapacity, getChunkOfChunksCapacity, getChunkTimeout, getMaxMemory, getMaxParallel, isAtOnceEvaluation, isBlockedEvaluation, isLastPassRequested, isPipelinedEvaluation, isReorderSolutions, isSharedState, newStats
__replaceArg, _clearProperty, _set, _setProperty, annotations, annotationsCopy, annotationsEqual, annotationsRef, argIterator, args, argsCopy, arity, clearAnnotations, clearProperty, deepCopy, deepCopy, get, getProperty, setArg, setProperty, setUnboundProperty, toArray, toArray
annotationsEqual, annotationsToString, annotationsToString, annotationValueToString, checkArgs, clone, equals, getEvaluationContext, getId, getProperty, getRequiredProperty, hashCode, indent, isController, mutation, shortenName, toShortString, toString, toString
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