net.sf.saxon.om

Class EmptyNamespaceDeclarationList

public class EmptyNamespaceDeclarationList extends Object implements NamespaceDeclarations

A class representing an empty set of namespace declarations
Method Summary
static EmptyNamespaceDeclarationListgetInstance()
Get the singular instance of this class
intgetNamespaceCode(int index)
Get the n'th declaration in the list in the form of a namespace code.
int[]getNamespaceCodes(int[] buffer)
Get all the namespace codes, as an array.
intgetNumberOfNamespaces()
Get the number of declarations (and undeclarations) in this list.
StringgetPrefix(int index)
Get the prefix of the n'th declaration (or undeclaration) in the list, counting from zero.
StringgetURI(int index)
Get the namespace URI of the n'th declaration (or undeclaration) in the list, counting from zero.

Method Detail

getInstance

public static EmptyNamespaceDeclarationList getInstance()
Get the singular instance of this class

Returns: the singular instance of this class

getNamespaceCode

public int getNamespaceCode(int index)
Get the n'th declaration in the list in the form of a namespace code. Namespace codes can be translated into a prefix and URI by means of methods in the NamePool

Parameters: index the index identifying which declaration is required.

Returns: the namespace code. This is an integer whose upper half indicates the prefix (0 represents the default namespace), and whose lower half indicates the URI (0 represents an undeclaration).

Throws: IndexOutOfBoundsException if the index is out of range.

See Also: NamePool NamePool

getNamespaceCodes

public int[] getNamespaceCodes(int[] buffer)
Get all the namespace codes, as an array.

Parameters: buffer a sacrificial array that the method is free to use to contain the result. May be null.

Returns: an integer array containing namespace codes. The array may be filled completely with namespace codes, or it may be incompletely filled, in which case a -1 integer acts as a terminator.

getNumberOfNamespaces

public int getNumberOfNamespaces()
Get the number of declarations (and undeclarations) in this list.

getPrefix

public String getPrefix(int index)
Get the prefix of the n'th declaration (or undeclaration) in the list, counting from zero.

Parameters: index the index identifying which declaration is required.

Returns: the namespace prefix. For a declaration or undeclaration of the default namespace, this is the zero-length string.

Throws: IndexOutOfBoundsException if the index is out of range.

getURI

public String getURI(int index)
Get the namespace URI of the n'th declaration (or undeclaration) in the list, counting from zero.

Parameters: index the index identifying which declaration is required.

Returns: the namespace URI. For a namespace undeclaration, this is the zero-length string.

Throws: IndexOutOfBoundsException if the index is out of range.