XdmArray Class Reference

#include <XdmArray.h>

Inheritance diagram for XdmArray:

Public Member Functions
	XdmArray ()
	XdmArray default constructor.
	XdmArray (const XdmArray &d)
	Copy constructor.
virtual	~XdmArray ()
	Destructor.
	XdmArray (int64_t obj)
	XdmArray (int64_t obj, int len)
int	arrayLength ()
	Get the number of members in the array.
XdmValue *	get (int n)
XdmArray *	put (int n, XdmValue *value)
XdmArray *	addMember (XdmValue *value)
XdmArray *	concat (XdmArray *value)
std::list< XdmValue * >	asList ()
XdmValue **	createXdmValueArray (int len)
XdmValue **	values ()
int	getArity ()
const char *	getStringValue ()
	Get the string value of the XdmArray item.
bool	isFunction ()
XDM_TYPE	getType ()
bool	isArray ()
	Determine whether the item is an array or some other type of item.
const char *	toString ()
Public Member Functions inherited from XdmFunctionItem
	XdmFunctionItem ()
	Default constructor for XdmFunctionItem.
	XdmFunctionItem (int64_t obj)
	XdmFunctionItem constructor created from a Java object - internal use.
	XdmFunctionItem (const XdmFunctionItem &d)
	Copy constructor.
virtual	~XdmFunctionItem ()
	Destructor.
const char *	getName ()
	Get the name of the function as EQName.
const char *	getStringValue ()
	Get the string value of the XdmArray item.
XdmValue **	createXdmValueArray (int len)
XdmValue *	call (SaxonProcessor *processor, XdmValue **arguments, int argument_length)
	Call the function.
bool	isAtomic ()
XDM_TYPE	getType ()
bool	isFunction ()
	Determine whether the item is a function or some other type of item.
Public Member Functions inherited from XdmItem
	XdmItem ()
	XdmItem default constructor.
	XdmItem (int64_t)
	XdmItem (const XdmItem &item)
	Copy constructor.
virtual	~XdmItem ()
	Destructor.
virtual void	incrementRefCount ()
virtual void	decrementRefCount ()
virtual bool	isNode ()
virtual bool	isMap ()
virtual int64_t	getUnderlyingValue ()
const char *	toString ()
virtual XdmItem *	getHead ()
XdmItem *	itemAt (int n)
int	size ()
Public Member Functions inherited from XdmValue
	XdmValue ()
	A default Constructor.
	XdmValue (const XdmValue &other)
	A copy constructor.
XdmValue *	addXdmValueWithType (const char *tStr, const char *val)
	Add an XdmItem to the sequence.
void	addXdmItem (XdmItem *val)
void	addUnderlyingValue (int64_t val)
	XdmValue (int64_t val, bool arrFlag)
	A Constructor for handling XdmArray - Internal user only.
	XdmValue (int64_t val)
	A Constructor.
virtual	~XdmValue ()
	Destructor.
void	releaseXdmValue ()
int	getRefCount ()
	Get the number of references on this XdmValue.

Additional Inherited Members
Static Public Member Functions inherited from XdmFunctionItem
static XdmFunctionItem *	getSystemFunction (SaxonProcessor *processor, const char *name, int arity)
	Get a system function.
Protected Member Functions inherited from XdmFunctionItem
XdmValue *	getXdmValueSubClass (int64_t value)
Protected Member Functions inherited from XdmValue
void	initialize ()
	initialize this XdmValue with default values
Protected Attributes inherited from XdmFunctionItem
char *	fname
Protected Attributes inherited from XdmItem
int64_t	value
const char *	stringValue
const char *	itemToString
Protected Attributes inherited from XdmValue
char *	valueType
XdmItem **	values
char *	relinquished_values
int	values_cap
int	xdmSize
int	refCount

Detailed Description

An array in the XDM data model. An array is a list of zero or more members, each of which is an arbitrary XDM value. The array itself is an XDM item.

An XdmArray is immutable.

Constructor & Destructor Documentation

XdmArray() [1/4]

XdmArray::XdmArray

(

)

XdmArray default constructor.

Create an empty XdmArray

XdmArray() [2/4]

XdmArray::XdmArray

(

const XdmArray &

d

)

Copy constructor.

Copy constructor for XdmArray

~XdmArray()

virtual XdmArray::~XdmArray ( )

inlinevirtual

Destructor.

Destructor for XdmArray

XdmArray() [3/4]

XdmArray::XdmArray

(

int64_t

obj

)

XdmArray constructor which is used a wrapper class for the Java XdmArray object - internal use

Parameters

obj	- The internal Java object for the XdmArray is wrapped here in the C++ XdmArray

XdmArray() [4/4]

XdmArray::XdmArray	(	int64_t	obj,
		int	len
	)

XdmArray constructor which is used a wrapper class for the Java XdmArray object - internal use

Parameters

obj	- The internal Java object for the XdmArray is wrapped here in the C++ XdmArray
len	- The length of the array if known

Member Function Documentation

addMember()

XdmArray * XdmArray::addMember

(

XdmValue *

value

)

Append a new member to an array

Parameters

value

- the new member

Returns

a new array, one item longer than the original

Remarks

if the value is lazily evaluated, and evaluation fails then return null

arrayLength()

int XdmArray::arrayLength

(

)

Get the number of members in the array.

Returns

the number of members in the array. (Note that the size() method returns 1 (one), because an XDM array is an item.)

asList()

std::list< XdmValue * > XdmArray::asList

(

)

Get the members of the array in the form of a list.

Returns

a std::list of the members of this array.

concat()

XdmArray * XdmArray::concat

(

XdmArray *

value

)

Concatenate another array

Parameters

value

- the other array

Returns

a new array, containing the members of this array followed by the members of the other array

createXdmValueArray()

XdmValue ** XdmArray::createXdmValueArray ( int  len )

inline

Utility method for working with SaxonC on Python Create an array of xdmValue objects

Parameters

len	- the length of the array to create

Returns

an empty array of XdmValue of length len

get()

XdmValue * XdmArray::get

(

int

n

)

Get the n'th member in the array, counting from zero.

Parameters

n	the member that is required, counting the first member in the array as member zero

Returns

the n'th member in the sequence making up the array, counting from zero

Remarks

if n is less than zero or greater than or equal to the number of members in the array we return null. User should clear any exception thrown

getArity()

int XdmArray::getArity ( )

inlinevirtual

Get the arity of the function

Returns

the arity of the function, that is, the number of arguments in the function's signature

Reimplemented from XdmFunctionItem.

getStringValue()

const char * XdmArray::getStringValue ( )

virtual

Get the string value of the XdmArray item.

Get the value of the item as a string. For arrays, there is no string value, so an exception is thrown.

Returns

the string value of the item

Reimplemented from XdmItem.

getType()

XDM_TYPE XdmArray::getType ( )

inlinevirtual

Get the type of the object

Reimplemented from XdmItem.

isArray()

bool XdmArray::isArray ( )

inlinevirtual

Determine whether the item is an array or some other type of item.

Returns

true if the item is a Xdm array item, false if it is some other type

Reimplemented from XdmItem.

isFunction()

bool XdmArray::isFunction ( )

inlinevirtual

Determine whether the item is a function or some other type of item

Returns

true if the item is a Xdm function item, false if it is an atomic value or a function (including maps and arrays)

Reimplemented from XdmItem.

put()

XdmArray * XdmArray::put	(	int	n,
		XdmValue *	value
	)

Create a new array in which one member is replaced with a new value.

Parameters

n	the position of the member that is to be replaced, counting the first member in the array as member zero
value	- is the new member for the the new array

Returns

a new array, the same length as the original, with one member replaced by a new value

Remarks

if n is less than zero or greater than or equal to the number of members in the array then return null

toString()

const char * XdmArray::toString ( )

virtual

The toString() method returns a simple XML serialization of the node with defaulted serialization parameters.

In the case of an element node, the result will be a well-formed XML document serialized as defined in the W3C XSLT/XQuery serialization specification, using options method="xml", indent="yes", omit-xml-declaration="yes".

In the case of a document node, the result will be a well-formed XML document provided that the document node contains exactly one element child, and no text node children. In other cases it will be a well-formed external general parsed entity.

In the case of an attribute node, the output is a string in the form name="value". The name will use the original namespace prefix.

In the case of a namespace node, the output is a string in the form of a namespace declaration, that is xmlns="uri" or xmlns:pre="uri".

Other nodes, such as text nodes, comments, and processing instructions, are represented as they would appear in lexical XML. Note: this means that in the case of text nodes, special characters such as & and < are output in escaped form. To get the unescaped string value of a text node, use getStringValue() instead.

Returns

a simple XML serialization of the node. Under error conditions the method may return an error message which will always begin with the label "Error: ".

Reimplemented from XdmValue.

values()

XdmValue ** XdmArray::values

(

)

Get the members of the array in the form of an array

Returns

an array of the members of this XdmArray.

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The documentation for this class was generated from the following files:

• Saxon.C.API/XdmArray.h
• Saxon.C.API/XdmArray.cpp