PathStepTagExpression Class Reference

Represents a single XPath path step of the form /tag or //tag. More...

#include <pathsteptagexpression.h>

Inheritance diagram for PathStepTagExpression:

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Collaboration diagram for PathStepTagExpression:

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List of all members.

Public Member Functions
	PathStepTagExpression (AXIS_TYPE _axis, const char *_tag)
	Constructor.
	PathStepTagExpression (const char *_tag)
	Constructor.
	PathStepTagExpression (AXIS_TYPE _axis, TAG _tag, PathStepAttribute *_attribute)
	Constructor.
virtual	~PathStepTagExpression ()
virtual void	print (OutputStream &dos) const
TAG	getNodeTest ()
	Returns the node test or the (numeric) value of the tagname respectively.
bool	isMatchingTag (TAG tag)
PathStepTagExpression *	clone ()
PathStepTagExpression *	cloneWithoutAttributes ()
Private Attributes
TAG	nt
	The (numeric) value of the entered string of a tagname.

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Detailed Description

Represents a single XPath path step of the form /tag or //tag.

Represents a single XPath path step of the form /tag or //tag (whereas tag denotes a tagname), which takes an AXIS_TYPE (default: child-axis), a string as tagname, e.g. /bib or //book, and a PathStepAttribute (if required), e.g. /tag[position()=1] or //tag[position()=1], as arguments.

Note:

Tagnames are internally represented by numbers!

Author:

Michael Schmidt

Gunnar Jehl

Version:

2.1

License:

Software License Agreement (BSD License)

Definition at line 61 of file pathsteptagexpression.h.

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Constructor & Destructor Documentation

PathStepTagExpression::PathStepTagExpression	(	AXIS_TYPE	_axis,
		const char *	_tag
	)

Constructor.

Constructor - creating object for an AXIS_TYPE and a string (as tagname).

Parameters:

[in]	_axis	AXIS_TYPE.
[in]	_tag	Pointer to a char object.

Definition at line 37 of file pathsteptagexpression.cpp.

Referenced by clone(), and cloneWithoutAttributes().

PathStepTagExpression::PathStepTagExpression

(

const char *

_tag

)

Constructor.

Constructor - creating object for (default) AXIS_TYPE child and a string (as tagname).

Parameters:

[in]

_tag

Pointer to a char object.

Definition at line 44 of file pathsteptagexpression.cpp.

PathStepTagExpression::PathStepTagExpression	(	AXIS_TYPE	_axis,
		TAG	_tag,
		PathStepAttribute *	_attribute
	)

Constructor.

Constructor - creating object for an AXIS_TYPE, a TAG, which is the (numeric value of a) tagname and a PathStepAttribute.

Parameters:

[in]	_axis	AXIS_TYPE.
[in]	_tag	TAG.
[in]	_attribute	Pointer to a PathStepAttribute object.

Definition at line 49 of file pathsteptagexpression.cpp.

PathStepTagExpression::~PathStepTagExpression

(

)

[virtual]

Destructor.

Definition at line 56 of file pathsteptagexpression.cpp.

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Member Function Documentation

PathStepTagExpression * PathStepTagExpression::clone

(

)

[virtual]

Returns a new, independent copy of a path step expression or of this object respectively.

Returns a new, independent copy of a path step expression or of this object respectively.

Return values:

PathStepExpression*

Copy of a path step expression or of this object respectively.

Implements PathStepExpression.

Definition at line 77 of file pathsteptagexpression.cpp.

References PathStepExpression::attribute, PathStepExpression::axis, PathStepAttribute::clone(), nt, and PathStepTagExpression().

PathStepTagExpression * PathStepTagExpression::cloneWithoutAttributes

(

)

[virtual]

Returns a new, independent copy of a path step expression or of this object respectively without any PathStepAttribute.

Returns a new, independent copy of a path step expression or of this object respectively without any PathStepAttribute.

Return values:

PathStepExpression*

Copy of a path step expression or of this object respectively without any PathStepAttribute.

Implements PathStepExpression.

Definition at line 85 of file pathsteptagexpression.cpp.

References PathStepExpression::axis, nt, and PathStepTagExpression().

TAG PathStepTagExpression::getNodeTest

(

)

[inline]

Returns the node test or the (numeric) value of the tagname respectively.

Returns the node test or the (numeric) value of the tagname respectively, which has been returned after insertion into TagMap.

Return values:

TAG

Numeric value of the tagname.

Definition at line 103 of file pathsteptagexpression.h.

References nt.

Referenced by ProjectionTreeLabel::getTag(), PathExpression::isSemanticallyContainedIn(), and PathExpression::mightHasChildDescendantConflict().

bool PathStepTagExpression::isMatchingTag

(

TAG

tag

)

[inline, virtual]

Returns if the correspnding path step expression is matching the entered TAG.

Returns if the correspnding path step expression is matching the entered TAG.

Parameters:

[in]

tag

TAG.

Return values:

bool

true if the correspnding path step expression is matching the entered TAG, false otherwise.

Implements PathStepExpression.

Definition at line 108 of file pathsteptagexpression.h.

void PathStepTagExpression::print

(

OutputStream &

dos

)

const [virtual]

Prints the corresponding path step expression.

Prints the corresponding path step expression.

Parameters:

[in]

dos

Pointer to a OutputStream object.

Return values:

void

Implements PathStepExpression.

Definition at line 59 of file pathsteptagexpression.cpp.

References PathStepExpression::attribute, PathStepExpression::axis, TagMap::getTag(), nt, and Expression::tagmap.

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Member Data Documentation

TAG PathStepTagExpression::nt [private]

The (numeric) value of the entered string of a tagname.

The (numeric) value of the entered string of a tagname, which has been returned after insertion into TagMap.

Definition at line 128 of file pathsteptagexpression.h.

Referenced by clone(), cloneWithoutAttributes(), getNodeTest(), and print().