com.bigdata.bop.joinGraph.rto

Interface JoinGraph.Annotations

All Superinterfaces:

BOp.Annotations, BufferAnnotations, PipelineOp.Annotations

Enclosing class:

JoinGraph

public static interface JoinGraph.Annotations
extends PipelineOp.Annotations

Known annotations.

Field Summary

Fields

Modifier and Type	Field and Description
static String	CONSTRAINTS The constraints on the join graph, expressed an an IConstraint[] (optional, defaults to no constraints).
static int	DEFAULT_LIMIT
static int	DEFAULT_NEDGES
static String	DEFAULT_SAMPLE_TYPE
static String	DONE_SET The set of variables that are known to have already been materialized in the context in which the RTO was invoked.
static String	JOIN_GROUP The AST JoinGroupNode for the joins and filters that we are running through the RTO (required).
static String	LIMIT The initial limit for cutoff sampling (default 100).
static String	NEDGES The nedges edges of the join graph having the lowest cardinality will be used to generate the initial join paths (default 2).
static String	NT An NT object specifying the namespace and timestamp of the KB view against which the RTO is running.
static String	SAMPLE_TYPE The type of sample to take (default .
static String	VERTICES The vertices of the join graph, expressed an an IPredicate[] (required).

Fields inherited from interface com.bigdata.bop.PipelineOp.Annotations

ALT_SINK_REF, DEFAULT_LAST_PASS, DEFAULT_MAX_MEMORY, DEFAULT_MAX_MESSAGES_PER_TASK, DEFAULT_MAX_PARALLEL, DEFAULT_PIPELINE_QUEUE_CAPACITY, DEFAULT_PIPELINED, DEFAULT_REORDER_SOLUTIONS, DEFAULT_SHARED_STATE, LAST_PASS, MAX_MEMORY, MAX_MESSAGES_PER_TASK, MAX_PARALLEL, PIPELINE_QUEUE_CAPACITY, PIPELINED, REORDER_SOLUTIONS, SHARED_STATE, SINK_REF

Fields inherited from interface com.bigdata.bop.BOp.Annotations

BOP_ID, CONTROLLER, DEFAULT_CONTROLLER, DEFAULT_EVALUATION_CONTEXT, DEFAULT_TIMEOUT, EVALUATION_CONTEXT, NAMESPACE, TIMEOUT

Fields inherited from interface com.bigdata.bop.BufferAnnotations

CHUNK_CAPACITY, CHUNK_OF_CHUNKS_CAPACITY, CHUNK_TIMEOUT, chunkTimeoutUnit, DEFAULT_CHUNK_CAPACITY, DEFAULT_CHUNK_OF_CHUNKS_CAPACITY, DEFAULT_CHUNK_TIMEOUT

Field Detail

VERTICES

static final String VERTICES

The vertices of the join graph, expressed an an IPredicate[] (required).

CONSTRAINTS

static final String CONSTRAINTS

The constraints on the join graph, expressed an an IConstraint[] (optional, defaults to no constraints).

LIMIT

static final String LIMIT

The initial limit for cutoff sampling (default 100).

DEFAULT_LIMIT

static final int DEFAULT_LIMIT

See Also:

Constant Field Values

NEDGES

static final String NEDGES

The nedges edges of the join graph having the lowest cardinality will be used to generate the initial join paths (default 2). This must be a positive integer. The edges in the join graph are sorted in order of increasing cardinality and up to nedges of those edges having the lowest cardinality are used to form the initial set of join paths. For each edge selected to form a join path, the starting vertex will be the vertex of that edge having the lower cardinality.

DEFAULT_NEDGES

static final int DEFAULT_NEDGES

See Also:

Constant Field Values

SAMPLE_TYPE

static final String SAMPLE_TYPE

The type of sample to take (default .

See Also:

SampleIndex.SampleType

DEFAULT_SAMPLE_TYPE

static final String DEFAULT_SAMPLE_TYPE

DONE_SET

static final String DONE_SET

The set of variables that are known to have already been materialized in the context in which the RTO was invoked.

JOIN_GROUP

static final String JOIN_GROUP

The AST JoinGroupNode for the joins and filters that we are running through the RTO (required).

NT

static final String NT

An NT object specifying the namespace and timestamp of the KB view against which the RTO is running. This is necessary in order to reconstruct the AST2BOpContext when it comes time to evaluate either a cutoff join involving filters that need materialization or the selected join path.