ExprFunctionN (Apache Jena ARQ)

java.lang.Object
- org.apache.jena.sparql.expr.ExprNode
- - org.apache.jena.sparql.expr.ExprFunction
  - - org.apache.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 org.apache.jena.sparql.expr.Expr
  CMP_EQUAL, CMP_GREATER, CMP_INDETERMINATE, CMP_LESS, CMP_UNEQUAL, NONE

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`Expr`	`apply(ExprTransform transform, ExprList exprList)`
`Expr`	`applyNodeTransform(NodeTransform transform)`	Rewrite, applying a node->node transformation
`abstract Expr`	`copy(ExprList newArgs)`
`Expr`	`copySubstitute(Binding binding)`	Deep copy with substitution
`abstract NodeValue`	`eval(java.util.List<NodeValue> args)`
`NodeValue`	`eval(java.util.List<NodeValue> args, FunctionEnv env)`
`NodeValue`	`eval(Binding binding, FunctionEnv env)`	Evaluate this expression against the binding
`Expr`	`getArg(int i)`
`java.util.List<Expr>`	`getArgs()`
`int`	`numArgs()`
`void`	`visit(ExprVisitor visitor)`

Methods inherited from class org.apache.jena.sparql.expr.ExprFunction
equals, getFunction, getFunctionIRI, getFunctionName, getFunctionPrintName, 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

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 java.util.List<Expr> getArgs()
```
Overrides:

getArgs in class ExprFunction

copySubstitute
```
public Expr copySubstitute(Binding binding)
```
Description copied from interface: Expr

Deep copy with substitution

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(java.util.List<NodeValue> args,
                      FunctionEnv env)

eval

public abstract NodeValue eval(java.util.List<NodeValue> args)

copy

public abstract Expr copy(ExprList newArgs)

visit

public void visit(ExprVisitor visitor)

apply

public Expr apply(ExprTransform transform,
                  ExprList exprList)