com.bigdata.rdf.sparql.ast

Class DummyConstantNode

java.lang.Object

com.bigdata.bop.CoreBaseBOp

com.bigdata.bop.ModifiableBOpBase

com.bigdata.rdf.sparql.ast.ASTBase

com.bigdata.rdf.sparql.ast.ValueExpressionNode

com.bigdata.rdf.sparql.ast.TermNode

com.bigdata.rdf.sparql.ast.ConstantNode

com.bigdata.rdf.sparql.ast.DummyConstantNode

All Implemented Interfaces:

BOp, IValueExpressionNode, IPropertySet, Serializable, Cloneable

public class DummyConstantNode
extends ConstantNode

The dummy constant node is used to represent constants in the AST that do not actually exist in the database. For example, the pattern and flags arguments to regex, or possibly the right operand to a compare operation whose left operand is a datatype, label, or str function. Also useful for magic predicates such as those used by free text search.

Author:

mikepersonick

See Also:

Serialized Form

Field Summary

Fields inherited from class com.bigdata.bop.CoreBaseBOp

DEFAULT_INITIAL_CAPACITY

Fields inherited from interface com.bigdata.bop.BOp

NOANNS, NOARGS

Constructor Summary

Constructors

Constructor and Description
DummyConstantNode(BigdataValue val)
DummyConstantNode(BOp[] args, Map<String,Object> anns) Required shallow copy constructor.
DummyConstantNode(DummyConstantNode op) Constructor required for com.bigdata.bop.BOpUtility#deepCopy(FilterNode).

Method Summary

Methods

Modifier and Type	Method and Description
static IV	toDummyIV(BigdataValue val)

Methods inherited from class com.bigdata.rdf.sparql.ast.ConstantNode

getValueExpression, toString

Methods inherited from class com.bigdata.rdf.sparql.ast.TermNode

getValue, invalidate, setValueExpression, toString

Methods inherited from class com.bigdata.rdf.sparql.ast.ValueExpressionNode

getRequiredValueExpression, isConstant, isFunction, isVariable, toShortString

Methods inherited from class com.bigdata.rdf.sparql.ast.ASTBase

addExplainHint, getExplainHints, getQueryHint, getQueryHint, getQueryHintAsBoolean, getQueryHintAsBoolean, getQueryHintAsInteger, getQueryHints, replaceAllWith, setQueryHint, setQueryHints

Methods inherited from class com.bigdata.bop.ModifiableBOpBase

addArg, addArg, addArgIfAbsent, annotations, annotationsEqual, argIterator, args, arity, clearProperty, copyAll, get, getProperty, indexOf, removeArg, replaceWith, setArg, setArgs, setId, setProperty, setUnboundProperty, toArray, toArray

Methods inherited from class com.bigdata.bop.CoreBaseBOp

annotationsEqual, annotationsToString, annotationsToString, annotationValueToString, checkArgs, clone, equals, getEvaluationContext, getId, getProperty, getRequiredProperty, hashCode, indent, isController, mutation, shortenName

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DummyConstantNode

public DummyConstantNode(BigdataValue val)

DummyConstantNode

public DummyConstantNode(DummyConstantNode op)

Constructor required for com.bigdata.bop.BOpUtility#deepCopy(FilterNode).

DummyConstantNode

public DummyConstantNode(BOp[] args,
                 Map<String,Object> anns)

Required shallow copy constructor.

Method Detail

toDummyIV

public static final IV toDummyIV(BigdataValue val)