Module org.apache.jena.arq

Package org.apache.jena.sparql.expr

Class E_Function

java.lang.Object

org.apache.jena.sparql.expr.ExprNode

org.apache.jena.sparql.expr.ExprFunction

org.apache.jena.sparql.expr.ExprFunctionN

org.apache.jena.sparql.expr.E_Function

All Implemented Interfaces:

Expr

public class E_Function
extends ExprFunctionN

SPARQL filter function

Field Summary

Fields

Modifier and Type	Field	Description
static boolean	WarnOnUnknownFunction

Fields inherited from interface org.apache.jena.sparql.expr.Expr

CMP_EQUAL, CMP_GREATER, CMP_INDETERMINATE, CMP_LESS, CMP_UNEQUAL, NONE

Constructor Summary

Constructors

Constructor	Description
E_Function(String functionIRI, ExprList args)

Method Summary

Modifier and Type	Method	Description
void	buildFunction(Context cxt)
Expr	copy(ExprList newArgs)
NodeValue	eval(List<NodeValue> args)
NodeValue	evalSpecial(Binding binding, FunctionEnv env)
String	getFunctionIRI()	URI for this function, whether custom or specification defined URI (these are keywords in the language)
String	getFunctionName(SerializationContext cxt)	Name used in a functional form (i.e.
String	getFunctionPrintName(SerializationContext cxt)	Name used for output in SPARQL format needing functional form (no specific keyword).

Methods inherited from class org.apache.jena.sparql.expr.ExprFunctionN

apply, applyNodeTransform, copySubstitute, eval, eval, getArg, getArgs, numArgs, visit

Methods inherited from class org.apache.jena.sparql.expr.ExprFunction

equals, getFunction, getFunctionSymbol, getOpName, hashCode, isFunction

Methods inherited from class org.apache.jena.sparql.expr.ExprNode

asVar, deepCopy, equals, equalsBySyntax, getConstant, getExpr, getExprVar, getGraphPattern, getVarName, getVarsMentioned, isConstant, isExpr, isGraphPattern, isSatisfied, isVariable, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Details

WarnOnUnknownFunction

public static boolean WarnOnUnknownFunction

Constructor Details

E_Function

public E_Function(String functionIRI,
 ExprList args)

Method Details

getFunctionIRI

public String getFunctionIRI()

Description copied from class: ExprFunction

URI for this function, whether custom or specification defined URI (these are keywords in the language)

Overrides:

getFunctionIRI in class ExprFunction

evalSpecial

public NodeValue evalSpecial(Binding binding,
 FunctionEnv env)

eval

public NodeValue eval(List<NodeValue> args)

Specified by:

eval in class ExprFunctionN

buildFunction

public void buildFunction(Context cxt)

getFunctionPrintName

public String getFunctionPrintName(SerializationContext cxt)

Description copied from class: ExprFunction

Name used for output in SPARQL format needing functional form (no specific keyword). e.g. regexp(), custom functions, ...

Overrides:

getFunctionPrintName in class ExprFunction

getFunctionName

public String getFunctionName(SerializationContext cxt)

Description copied from class: ExprFunction

Name used in a functional form (i.e. SPARQL algebra). getOpName() is used in preference as a short, symbol name.

Overrides:

getFunctionName in class ExprFunction

copy

public Expr copy(ExprList newArgs)

Specified by:

copy in class ExprFunctionN