com.hp.hpl.jena.sparql.expr

Class ExprFunctionN

java.lang.Object

com.hp.hpl.jena.sparql.expr.ExprNode

com.hp.hpl.jena.sparql.expr.ExprFunction

com.hp.hpl.jena.sparql.expr.ExprFunctionN

All Implemented Interfaces:

Expr

Direct Known Subclasses:

E_BNode, E_Call, E_Coalesce, E_Function, E_OneOfBase, E_Regex, E_StrConcat, E_StrReplace, E_StrSubstring

public abstract class ExprFunctionN
extends ExprFunction

A function which takes N arguments (N may be variable e.g. regex)

Field Summary

Fields inherited from interface com.hp.hpl.jena.sparql.expr.Expr

CMP_EQUAL, CMP_GREATER, CMP_INDETERMINATE, CMP_LESS, CMP_UNEQUAL

Method Summary

Methods

Modifier and Type	Method and Description
Expr	apply(ExprTransform transform, ExprList exprList)
Expr	applyNodeTransform(NodeTransform transform) Rewrite, applying a node->node transformation
Expr	copySubstitute(Binding binding, boolean foldConstants)
NodeValue	eval(Binding binding, FunctionEnv env) Evaluate this expression against the binding
NodeValue	eval(List<NodeValue> args, FunctionEnv env)
Expr	getArg(int i)
List<Expr>	getArgs()
int	numArgs()
void	visit(ExprVisitor visitor)

Methods inherited from class com.hp.hpl.jena.sparql.expr.ExprFunction

equals, getFunction, getFunctionIRI, getFunctionName, getFunctionPrintName, getFunctionSymbol, getOpName, hashCode, isFunction

Methods inherited from class com.hp.hpl.jena.sparql.expr.ExprNode

asVar, copySubstitute, deepCopy, getConstant, getExpr, getExprVar, getGraphPattern, getVarName, getVarNamesMentioned, getVarsMentioned, isConstant, isExpr, isGraphPattern, isSatisfied, isVariable, toString, varNamesMentioned, varsMentioned

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Method Detail

getArg

public Expr getArg(int i)

Specified by:

getArg in class ExprFunction

numArgs

public int numArgs()

Specified by:

numArgs in class ExprFunction

getArgs

public List<Expr> getArgs()

Overrides:

getArgs in class ExprFunction

copySubstitute

public Expr copySubstitute(Binding binding,
                  boolean foldConstants)

Specified by:

copySubstitute in interface Expr

Specified by:

copySubstitute in class ExprNode

applyNodeTransform

public Expr applyNodeTransform(NodeTransform transform)

Description copied from interface: Expr

Rewrite, applying a node->node transformation

Specified by:

applyNodeTransform in interface Expr

Specified by:

applyNodeTransform in class ExprNode

eval

public final NodeValue eval(Binding binding,
             FunctionEnv env)

Description copied from interface: Expr

Evaluate this expression against the binding

Specified by:

eval in interface Expr

Specified by:

eval in class ExprNode

eval

public NodeValue eval(List<NodeValue> args,
             FunctionEnv env)

visit

public void visit(ExprVisitor visitor)

apply

public Expr apply(ExprTransform transform,
         ExprList exprList)