org.ucl.xpath
Class DefaultEvaluator

java.lang.Object
  org.ucl.xpath.DefaultEvaluator

All Implemented Interfaces:

Evaluator, XPathVisitor

public class DefaultEvaluator

extends java.lang.Object

implements XPathVisitor, Evaluator

Default evaluator interface

Constructor Summary

DefaultEvaluator(DynamicContext dc, org.w3c.dom.Document doc)
set parameters

Method Summary

ResultSequence	evaluate(XPathNode node) evaluate the xpath node
java.lang.Object	visit(AddExpr addex) visit and expression
java.lang.Object	visit(AndExpr andex) visit and expression
java.lang.Object	visit(AnyKindTest e) visit any kind test.
java.lang.Object	visit(AttributeTest e) visit attribute test.
java.lang.Object	visit(AxisStep e) visit axis step.
java.lang.Object	visit(CastableExpr cexp) visit castable expression
java.lang.Object	visit(CastExpr cexp) visit cast expression
java.lang.Object	visit(CmpExpr cmpex) visit compare expression
java.lang.Object	visit(CntxItemExpr e) visit context item expression.
java.lang.Object	visit(CommentTest e) visit comment test.
java.lang.Object	visit(DecimalLiteral e) visit decimal literal.
java.lang.Object	visit(DivExpr mulex) visit division expression
java.lang.Object	visit(DocumentTest e) visit document test.
java.lang.Object	visit(DoubleLiteral e) visit double literal.
java.lang.Object	visit(ElementTest e) visit element test.
java.lang.Object	visit(ExceptExpr eexpr) visit except expression
java.lang.Object	visit(FilterExpr e) visit filter expression
java.lang.Object	visit(ForExpr fex) visit for expression
java.lang.Object	visit(ForwardStep e) visit a forward step expression
java.lang.Object	visit(FunctionCall e) visit function call.
java.lang.Object	visit(IDivExpr mulex) visit integer division expression
java.lang.Object	visit(IfExpr ifex) visit if expression
java.lang.Object	visit(InstOfExpr ioexp) visit instance of expression
java.lang.Object	visit(IntegerLiteral e) visit integer literal.
java.lang.Object	visit(IntersectExpr iexpr) visit intersect expression
java.lang.Object	visit(ItemType e) visit item type.
java.lang.Object	visit(MinusExpr e) visit minus expression
java.lang.Object	visit(ModExpr mulex) visit modular expression
java.lang.Object	visit(MulExpr mulex) visit multiply expression
java.lang.Object	visit(NameTest e) visit a name test expression
java.lang.Object	visit(OrExpr orex) visit or expression
java.lang.Object	visit(ParExpr e) visit parent expression.
java.lang.Object	visit(PipeExpr pipex) visit pipe expression
java.lang.Object	visit(PITest e) visit PI test.
java.lang.Object	visit(PlusExpr e) visit plus expression
java.lang.Object	visit(QuantifiedExpr qex) visit quantified expression
java.lang.Object	visit(RangeExpr rex) visit range expression
java.lang.Object	visit(ReverseStep e) visit a reverse step expression
java.lang.Object	visit(SchemaAttrTest e) visit schema attribute test.
java.lang.Object	visit(SchemaElemTest e) visit schema element test.
java.lang.Object	visit(SequenceType e) visit sequence type.
java.lang.Object	visit(SingleType e) visit single type.
java.lang.Object	visit(StringLiteral e) visit string literal.
java.lang.Object	visit(SubExpr subex) visit sub expression
java.lang.Object	visit(TextTest e) visit text test.
java.lang.Object	visit(TreatAsExpr taexp) visit treat-as expression
java.lang.Object	visit(UnionExpr unex) visit union expression
java.lang.Object	visit(VarRef e) visit variable reference
java.lang.Object	visit(XPath xp) iterate through xpath expression
java.lang.Object	visit(XPathExpr e) visit XPath expression

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultEvaluator

public DefaultEvaluator(DynamicContext dc,
                        org.w3c.dom.Document doc)

set parameters

Parameters:

dc - is the dynamic context.

doc - is the document.

Method Detail

evaluate

public ResultSequence evaluate(XPathNode node)
                        throws DynamicError

evaluate the xpath node

Specified by:

evaluate in interface Evaluator

Parameters:

node - is the xpath node.

Returns:

result sequence.

Throws:

dynamic - error.

DynamicError - dynamic error.

visit

public java.lang.Object visit(XPath xp)

iterate through xpath expression

Specified by:

visit in interface XPathVisitor

Parameters:

xp - is the xpath.

Returns:

result sequence.

visit

public java.lang.Object visit(ForExpr fex)

visit for expression

Specified by:

visit in interface XPathVisitor

Parameters:

fex - is the for expression.

Returns:

a new function.

visit

public java.lang.Object visit(QuantifiedExpr qex)

visit quantified expression

Specified by:

visit in interface XPathVisitor

Parameters:

qex - is the quantified expression.

Returns:

a new function or null.

visit

public java.lang.Object visit(IfExpr ifex)

visit if expression

Specified by:

visit in interface XPathVisitor

Parameters:

ifex - is the if expression.

Returns:

a ifex.then_clause().accept(this).

visit

public java.lang.Object visit(OrExpr orex)

visit or expression

Specified by:

visit in interface XPathVisitor

Parameters:

orex - is the or expression.

Returns:

a new function

visit

public java.lang.Object visit(AndExpr andex)

visit and expression

Specified by:

visit in interface XPathVisitor

Parameters:

andex - is the and expression.

Returns:

a new function

visit

public java.lang.Object visit(CmpExpr cmpex)

visit compare expression

Specified by:

visit in interface XPathVisitor

Parameters:

cmpex - is the compare expression.

Returns:

a new function or null

visit

public java.lang.Object visit(RangeExpr rex)

visit range expression

Specified by:

visit in interface XPathVisitor

Parameters:

rex - is the range expression.

Returns:

a new function

visit

public java.lang.Object visit(AddExpr addex)

visit and expression

Specified by:

visit in interface XPathVisitor

Parameters:

addex - is the and expression.

Returns:

a new function

visit

public java.lang.Object visit(SubExpr subex)

visit sub expression

Specified by:

visit in interface XPathVisitor

Parameters:

subex - is the sub expression.

Returns:

a new function

visit

public java.lang.Object visit(MulExpr mulex)

visit multiply expression

Specified by:

visit in interface XPathVisitor

Parameters:

mulex - is the mul expression.

Returns:

a new function

visit

public java.lang.Object visit(DivExpr mulex)

visit division expression

Specified by:

visit in interface XPathVisitor

Parameters:

mulex - is the division expression.

Returns:

a new function

visit

public java.lang.Object visit(IDivExpr mulex)

visit integer division expression

Specified by:

visit in interface XPathVisitor

Parameters:

mulex - is the integer division expression.

Returns:

a new function

visit

public java.lang.Object visit(ModExpr mulex)

visit modular expression

Specified by:

visit in interface XPathVisitor

Parameters:

mulex - is the modular expression.

Returns:

a new function

visit

public java.lang.Object visit(UnionExpr unex)

visit union expression

Specified by:

visit in interface XPathVisitor

Parameters:

unex - is the union expression.

Returns:

a new function

visit

public java.lang.Object visit(PipeExpr pipex)

visit pipe expression

Specified by:

visit in interface XPathVisitor

Parameters:

pipex - is the pipe expression.

Returns:

a new function

visit

public java.lang.Object visit(IntersectExpr iexpr)

visit intersect expression

Specified by:

visit in interface XPathVisitor

Parameters:

iexpr - is the intersect expression.

Returns:

a new function

visit

public java.lang.Object visit(ExceptExpr eexpr)

visit except expression

Specified by:

visit in interface XPathVisitor

Parameters:

eexpr - is the except expression.

Returns:

a new function

visit

public java.lang.Object visit(InstOfExpr ioexp)

visit instance of expression

Specified by:

visit in interface XPathVisitor

Parameters:

ioexp - is the instance of expression.

Returns:

a new function

visit

public java.lang.Object visit(TreatAsExpr taexp)

visit treat-as expression

Specified by:

visit in interface XPathVisitor

Parameters:

taexp - is the treat-as expression.

Returns:

a new function

visit

public java.lang.Object visit(CastableExpr cexp)

visit castable expression

Specified by:

visit in interface XPathVisitor

Parameters:

cexp - is the castable expression.

Returns:

a new function

visit

public java.lang.Object visit(CastExpr cexp)

visit cast expression

Specified by:

visit in interface XPathVisitor

Parameters:

cexp - is the cast expression.

Returns:

a new function

visit

public java.lang.Object visit(MinusExpr e)

visit minus expression

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the minus expression.

Returns:

a new function

visit

public java.lang.Object visit(PlusExpr e)

visit plus expression

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the plus expression.

Returns:

a new function

visit

public java.lang.Object visit(XPathExpr e)

visit XPath expression

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the XPath expression.

Returns:

a new function

visit

public java.lang.Object visit(ForwardStep e)

visit a forward step expression

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the forward step.

Returns:

a new function

visit

public java.lang.Object visit(ReverseStep e)

visit a reverse step expression

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the reverse step.

Returns:

a new function

visit

public java.lang.Object visit(NameTest e)

visit a name test expression

Specified by:

visit in interface XPathVisitor

Parameters:

e - is thename test.

Returns:

a result sequence

visit

public java.lang.Object visit(VarRef e)

visit variable reference

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the variable reference.

Returns:

a result sequence

visit

public java.lang.Object visit(StringLiteral e)

visit string literal.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the string literal.

Returns:

a result sequence

visit

public java.lang.Object visit(IntegerLiteral e)

visit integer literal.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the integer literal.

Returns:

a result sequence

visit

public java.lang.Object visit(DoubleLiteral e)

visit double literal.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the double literal.

Returns:

a result sequence

visit

public java.lang.Object visit(DecimalLiteral e)

visit decimal literal.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the decimal literal.

Returns:

a result sequence

visit

public java.lang.Object visit(ParExpr e)

visit parent expression.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the parent expression.

Returns:

a new function

visit

public java.lang.Object visit(CntxItemExpr e)

visit context item expression.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the context item expression.

Returns:

a result sequence

visit

public java.lang.Object visit(FunctionCall e)

visit function call.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the function call.

Returns:

a new function or null

visit

public java.lang.Object visit(SingleType e)

visit single type.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the single type.

Returns:

null

visit

public java.lang.Object visit(SequenceType e)

visit sequence type.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the sequence type.

Returns:

null

visit

public java.lang.Object visit(ItemType e)

visit item type.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the item type.

Returns:

null

visit

public java.lang.Object visit(AnyKindTest e)

visit any kind test.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the any kind test.

Returns:

a new function

visit

public java.lang.Object visit(DocumentTest e)

visit document test.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the document test.

Returns:

result sequence

visit

public java.lang.Object visit(TextTest e)

visit text test.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the text test.

Returns:

a new function

visit

public java.lang.Object visit(CommentTest e)

visit comment test.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the text test.

Returns:

a new function

visit

public java.lang.Object visit(PITest e)

visit PI test.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the PI test.

Returns:

a argument

visit

public java.lang.Object visit(AttributeTest e)

visit attribute test.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the attribute test.

Returns:

a result sequence

visit

public java.lang.Object visit(SchemaAttrTest e)

visit schema attribute test.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the schema attribute test.

Returns:

a result sequence

visit

public java.lang.Object visit(ElementTest e)

visit element test.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the element test.

Returns:

a result sequence

visit

public java.lang.Object visit(SchemaElemTest e)

visit schema element test.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the schema element test.

Returns:

a result sequence

visit

public java.lang.Object visit(AxisStep e)

visit axis step.

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the axis step.

Returns:

a result sequence

visit

public java.lang.Object visit(FilterExpr e)

visit filter expression

Specified by:

visit in interface XPathVisitor

Parameters:

e - is the filter expression.

Returns:

a result sequence