Package se.liu.ida.hefquin.engine.queryplan.executable
package se.liu.ida.hefquin.engine.queryplan.executable
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ClassDescriptionA specialization of the
ExecutableOperatorinterface that captures executable operators that consume a pair of two sequences of solution mappings (which both are batched into several blocks of solution mappings).An exception that occurred during the execution of a specific operator.An executable operator provides the implementation of the concrete algorithm that a physical operator is associated with.This interface captures statistics collected during the execution of anExecutablePlan.A specialization of theExecutableOperatorinterface that captures executable operators that consume an arbitrary number of sequences of solution mappings (where each such sequence is batched into several blocks of solution mappings).A specialization of theExecutableOperatorinterface that captures executable operators that do not consume any input produced by other operators; hence, these operators are the leaf nodes in a tree representation of query execution plans.A specialization of theExecutableOperatorinterface that captures executable operators that consume a single input sequence of solution mappings (which are batched into several blocks).