com.bigdata.bop.controller

Interface ServiceCallJoin.Annotations

All Superinterfaces:

BOp.Annotations, BufferAnnotations, PipelineOp.Annotations

Enclosing class:

ServiceCallJoin

public static interface ServiceCallJoin.Annotations
extends PipelineOp.Annotations

Field Summary

Fields

Modifier and Type	Field and Description
static String	CONSTRAINTS Optional constraints to be applied to each solution.
static String	JOIN_VARS The join variables.
static String	NAMESPACE The namespace of the AbstractTripleStore instance (not the namespace of the lexicon relation).
static String	SERVICE_NODE The ServiceNode modeling the SERVICE clause to be invoked.
static String	TIMESTAMP The timestamp of the AbstractTripleStore view to be located.

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, 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

CONSTRAINTS

static final String CONSTRAINTS

Optional constraints to be applied to each solution.

See Also:

JoinAnnotations.CONSTRAINTS

SERVICE_NODE

static final String SERVICE_NODE

The ServiceNode modeling the SERVICE clause to be invoked.

Note: This presence of the ServiceNode as an attribute on the ServiceCallJoin blends the bop (physical query plan) and the AST (logical query plan). However, we basically need all of the data from the ServiceNode in order to handle remote service end points so it is much simpler to reuse the encapsulation here.

See Also:

ServiceRegistry

NAMESPACE

static final String NAMESPACE

The namespace of the AbstractTripleStore instance (not the namespace of the lexicon relation). This resource will be located and made available to the ServiceCall.

TIMESTAMP

static final String TIMESTAMP

The timestamp of the AbstractTripleStore view to be located.

JOIN_VARS

static final String JOIN_VARS

The join variables. This is used to establish a correlation between the solutions vectored into the SERVICE call and the solutions flowing out of the SERVICE call.

See Also:

HashJoinAnnotations.JOIN_VARS