Module org.apache.jena.arq

Package org.apache.jena.sparql.algebra.walker

Class WalkerVisitor

java.lang.Object

org.apache.jena.sparql.algebra.walker.WalkerVisitor

All Implemented Interfaces:

OpVisitor, ExprVisitorFunction, OpVisitorByTypeAndExpr, ExprVisitor

Direct Known Subclasses:

WalkerVisitorSkipService, WalkerVisitorVisible

public class WalkerVisitor
extends Object
implements OpVisitorByTypeAndExpr, ExprVisitorFunction

Walk algebra and expressions

Constructor Summary

Constructors

Constructor	Description
WalkerVisitor(OpVisitor opVisitor, ExprVisitor exprVisitor, OpVisitor before, OpVisitor after)	A walker.

Method Summary

Modifier and Type	Method	Description
void	visit(OpAssign opAssign)
void	visit(OpExtend opExtend)
void	visit(OpOrder opOrder)
void	visit(OpUnfold opUnfold)
void	visit(ExprAggregator eAgg)
void	visit(ExprFunction0 func)
void	visit(ExprFunction1 func)
void	visit(ExprFunction2 func)
void	visit(ExprFunction3 func)
void	visit(ExprFunctionN func)
void	visit(ExprFunctionOp funcOp)
void	visit(ExprNone none)
void	visit(ExprTripleTerm exTripleTerm)
void	visit(ExprVar v)
void	visit(NodeValue nv)
void	visit0(Op0 op)
void	visit1(Op1 op)
void	visit2(Op2 op)
void	visitExpr(ExprList exprList)
void	visitExprFunction(ExprFunction func)
void	visitExt(OpExt op)
void	visitN(OpN op)
void	visitOp(Op op)
void	visitVarExpr(VarExprList varExprList)
void	walk(Op op)
void	walk(VarExprList varExprList)
void	walk(Expr expr)
void	walk(ExprList exprList)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.jena.sparql.algebra.walker.OpVisitorByTypeAndExpr

visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visitAggregators, visitAssignVar, visitModifer, visitSortConditions

Constructor Details

WalkerVisitor

public WalkerVisitor(OpVisitor opVisitor,
 ExprVisitor exprVisitor,
 OpVisitor before,
 OpVisitor after)

A walker. If a visitor is null, then don't walk in. For "no action but keep walking inwards", use OpVisitorBase and ExprVisitorBase.

See Also:

• OpVisitorBase
• ExprVisitorBase

Method Details

walk

public void walk(Op op)

walk

public void walk(Expr expr)

walk

public void walk(ExprList exprList)

walk

public void walk(VarExprList varExprList)

visitExpr

public void visitExpr(ExprList exprList)

Specified by:

visitExpr in interface OpVisitorByTypeAndExpr

visitVarExpr

public void visitVarExpr(VarExprList varExprList)

Specified by:

visitVarExpr in interface OpVisitorByTypeAndExpr

visitOp

public void visitOp(Op op)

visit0

public void visit0(Op0 op)

Specified by:

visit0 in interface OpVisitorByTypeAndExpr

visit1

public void visit1(Op1 op)

Specified by:

visit1 in interface OpVisitorByTypeAndExpr

visit2

public void visit2(Op2 op)

Specified by:

visit2 in interface OpVisitorByTypeAndExpr

visitN

public void visitN(OpN op)

Specified by:

visitN in interface OpVisitorByTypeAndExpr

visitExt

public void visitExt(OpExt op)

Specified by:

visitExt in interface OpVisitorByTypeAndExpr

visit

public void visit(OpOrder opOrder)

Specified by:

visit in interface OpVisitor

Specified by:

visit in interface OpVisitorByTypeAndExpr

visit

public void visit(OpAssign opAssign)

Specified by:

visit in interface OpVisitor

Specified by:

visit in interface OpVisitorByTypeAndExpr

visit

public void visit(OpExtend opExtend)

Specified by:

visit in interface OpVisitor

Specified by:

visit in interface OpVisitorByTypeAndExpr

visit

public void visit(OpUnfold opUnfold)

Specified by:

visit in interface OpVisitor

Specified by:

visit in interface OpVisitorByTypeAndExpr

visit

public void visit(ExprFunction0 func)

Specified by:

visit in interface ExprVisitor

Specified by:

visit in interface ExprVisitorFunction

visit

public void visit(ExprFunction1 func)

Specified by:

visit in interface ExprVisitor

Specified by:

visit in interface ExprVisitorFunction

visit

public void visit(ExprFunction2 func)

Specified by:

visit in interface ExprVisitor

Specified by:

visit in interface ExprVisitorFunction

visit

public void visit(ExprFunction3 func)

Specified by:

visit in interface ExprVisitor

Specified by:

visit in interface ExprVisitorFunction

visit

public void visit(ExprFunctionN func)

Specified by:

visit in interface ExprVisitor

Specified by:

visit in interface ExprVisitorFunction

visitExprFunction

public void visitExprFunction(ExprFunction func)

Specified by:

visitExprFunction in interface ExprVisitorFunction

visit

public void visit(ExprFunctionOp funcOp)

Specified by:

visit in interface ExprVisitor

visit

public void visit(NodeValue nv)

Specified by:

visit in interface ExprVisitor

visit

public void visit(ExprTripleTerm exTripleTerm)

Specified by:

visit in interface ExprVisitor

visit

public void visit(ExprVar v)

Specified by:

visit in interface ExprVisitor

visit

public void visit(ExprNone none)

Specified by:

visit in interface ExprVisitor

visit

public void visit(ExprAggregator eAgg)

Specified by:

visit in interface ExprVisitor