org.apache.xerces.xni

Interface XMLAttributes

All Known Implementing Classes:

DOMNormalizer.XMLAttributesProxy, XMLAttributesImpl

public interface XMLAttributes

The XMLAttributes interface defines a collection of attributes for an element. In the parser, the document source would scan the entire start element and collect the attributes. The attributes are communicated to the document handler in the startElement method.

The attributes are read-write so that subsequent stages in the document pipeline can modify the values or change the attributes that are propagated to the next stage.

Version:

$Id$

Author:

Andy Clark, IBM

See Also:

XMLDocumentHandler.startElement(org.apache.xerces.xni.QName, org.apache.xerces.xni.XMLAttributes, org.apache.xerces.xni.Augmentations)

Method Summary

Methods

Modifier and Type	Method and Description
int	addAttribute(QName attrName, String attrType, String attrValue) Adds an attribute.
Augmentations	getAugmentations(int attributeIndex) Look up an augmentation by attribute's index.
Augmentations	getAugmentations(String qName) Look up an augmentation by XML 1.0 qualified name.
Augmentations	getAugmentations(String uri, String localPart) Look up an augmentation by namespace name.
int	getIndex(String qName) Look up the index of an attribute by XML 1.0 qualified name.
int	getIndex(String uri, String localPart) Look up the index of an attribute by Namespace name.
int	getLength() Returns the number of attributes in the list.
String	getLocalName(int index) Look up an attribute's local name by index.
void	getName(int attrIndex, QName attrName) Sets the fields in the given QName structure with the values of the attribute name at the specified index.
String	getNonNormalizedValue(int attrIndex) Returns the non-normalized value of the attribute at the specified index.
String	getPrefix(int index) Returns the prefix of the attribute at the specified index.
String	getQName(int index) Look up an attribute's XML 1.0 qualified name by index.
String	getType(int index) Look up an attribute's type by index.
String	getType(String qName) Look up an attribute's type by XML 1.0 qualified name.
String	getType(String uri, String localName) Look up an attribute's type by Namespace name.
String	getURI(int index) Look up an attribute's Namespace URI by index.
String	getValue(int index) Look up an attribute's value by index.
String	getValue(String qName) Look up an attribute's value by XML 1.0 qualified name.
String	getValue(String uri, String localName) Look up an attribute's value by Namespace name.
boolean	isSpecified(int attrIndex) Returns true if the attribute is specified in the instance document.
void	removeAllAttributes() Removes all of the attributes.
void	removeAttributeAt(int attrIndex) Removes the attribute at the specified index.
void	setAugmentations(int attrIndex, Augmentations augs) Sets the augmentations of the attribute at the specified index.
void	setName(int attrIndex, QName attrName) Sets the name of the attribute at the specified index.
void	setNonNormalizedValue(int attrIndex, String attrValue) Sets the non-normalized value of the attribute at the specified index.
void	setSpecified(int attrIndex, boolean specified) Sets whether an attribute is specified in the instance document or not.
void	setType(int attrIndex, String attrType) Sets the type of the attribute at the specified index.
void	setValue(int attrIndex, String attrValue) Sets the value of the attribute at the specified index.

Method Detail

addAttribute

int addAttribute(QName attrName,
               String attrType,
               String attrValue)

Adds an attribute. The attribute's non-normalized value of the attribute will have the same value as the attribute value until set using the setNonNormalizedValue method. Also, the added attribute will be marked as specified in the XML instance document unless set otherwise using the setSpecified method.

Note: If an attribute of the same name already exists, the old values for the attribute are replaced by the new values.

Parameters:

attrName - The attribute name.

attrType - The attribute type. The type name is determined by the type specified for this attribute in the DTD. For example: "CDATA", "ID", "NMTOKEN", etc. However, attributes of type enumeration will have the type value specified as the pipe ('|') separated list of the enumeration values prefixed by an open parenthesis and suffixed by a close parenthesis. For example: "(true|false)".

attrValue - The attribute value.

Returns:

Returns the attribute index.

See Also:

setNonNormalizedValue(int, java.lang.String), setSpecified(int, boolean)

removeAllAttributes

void removeAllAttributes()

Removes all of the attributes. This method will also remove all entities associated to the attributes.

removeAttributeAt

void removeAttributeAt(int attrIndex)

Removes the attribute at the specified index.

Note: This operation changes the indexes of all attributes following the attribute at the specified index.

Parameters:

attrIndex - The attribute index.

getLength

int getLength()

Returns the number of attributes in the list.

Once you know the number of attributes, you can iterate through the list.

See Also:

getURI(int), getLocalName(int), getQName(int), getType(int), getValue(int)

getIndex

int getIndex(String qName)

Look up the index of an attribute by XML 1.0 qualified name.

Parameters:

qName - The qualified (prefixed) name.

Returns:

The index of the attribute, or -1 if it does not appear in the list.

getIndex

int getIndex(String uri,
           String localPart)

Look up the index of an attribute by Namespace name.

Parameters:

uri - The Namespace URI, or the empty string if the name has no Namespace URI.

localPart - The attribute's local name.

Returns:

The index of the attribute, or -1 if it does not appear in the list.

setName

void setName(int attrIndex,
           QName attrName)

Sets the name of the attribute at the specified index.

Parameters:

attrIndex - The attribute index.

attrName - The new attribute name.

getName

void getName(int attrIndex,
           QName attrName)

Sets the fields in the given QName structure with the values of the attribute name at the specified index.

Parameters:

attrIndex - The attribute index.

attrName - The attribute name structure to fill in.

getPrefix

String getPrefix(int index)

Returns the prefix of the attribute at the specified index.

Parameters:

index - The index of the attribute.

getURI

String getURI(int index)

Look up an attribute's Namespace URI by index.

Parameters:

index - The attribute index (zero-based).

Returns:

The Namespace URI, or the empty string if none is available, or null if the index is out of range.

See Also:

getLength()

getLocalName

String getLocalName(int index)

Look up an attribute's local name by index.

Parameters:

index - The attribute index (zero-based).

Returns:

The local name, or the empty string if Namespace processing is not being performed, or null if the index is out of range.

See Also:

getLength()

getQName

String getQName(int index)

Look up an attribute's XML 1.0 qualified name by index.

Parameters:

index - The attribute index (zero-based).

Returns:

The XML 1.0 qualified name, or the empty string if none is available, or null if the index is out of range.

See Also:

getLength()

setType

void setType(int attrIndex,
           String attrType)

Sets the type of the attribute at the specified index.

Parameters:

attrIndex - The attribute index.

attrType - The attribute type. The type name is determined by the type specified for this attribute in the DTD. For example: "CDATA", "ID", "NMTOKEN", etc. However, attributes of type enumeration will have the type value specified as the pipe ('|') separated list of the enumeration values prefixed by an open parenthesis and suffixed by a close parenthesis. For example: "(true|false)".

getType

String getType(int index)

Look up an attribute's type by index.

The attribute type is one of the strings "CDATA", "ID", "IDREF", "IDREFS", "NMTOKEN", "NMTOKENS", "ENTITY", "ENTITIES", or "NOTATION" (always in upper case).

If the parser has not read a declaration for the attribute, or if the parser does not report attribute types, then it must return the value "CDATA" as stated in the XML 1.0 Recommendation (clause 3.3.3, "Attribute-Value Normalization").

For an enumerated attribute that is not a notation, the parser will report the type as "NMTOKEN".

Parameters:

index - The attribute index (zero-based).

Returns:

The attribute's type as a string, or null if the index is out of range.

See Also:

getLength()

getType

String getType(String qName)

Look up an attribute's type by XML 1.0 qualified name.

See getType(int) for a description of the possible types.

Parameters:

qName - The XML 1.0 qualified name.

Returns:

The attribute type as a string, or null if the attribute is not in the list or if qualified names are not available.

getType

String getType(String uri,
             String localName)

Look up an attribute's type by Namespace name.

See getType(int) for a description of the possible types.

Parameters:

uri - The Namespace URI, or the empty String if the name has no Namespace URI.

localName - The local name of the attribute.

Returns:

The attribute type as a string, or null if the attribute is not in the list or if Namespace processing is not being performed.

setValue

void setValue(int attrIndex,
            String attrValue)

Sets the value of the attribute at the specified index. This method will overwrite the non-normalized value of the attribute.

Parameters:

attrIndex - The attribute index.

attrValue - The new attribute value.

See Also:

setNonNormalizedValue(int, java.lang.String)

getValue

String getValue(int index)

Look up an attribute's value by index.

If the attribute value is a list of tokens (IDREFS, ENTITIES, or NMTOKENS), the tokens will be concatenated into a single string with each token separated by a single space.

Parameters:

index - The attribute index (zero-based).

Returns:

The attribute's value as a string, or null if the index is out of range.

See Also:

getLength()

getValue

String getValue(String qName)

Look up an attribute's value by XML 1.0 qualified name.

See getValue(int) for a description of the possible values.

Parameters:

qName - The XML 1.0 qualified name.

Returns:

The attribute value as a string, or null if the attribute is not in the list or if qualified names are not available.

getValue

String getValue(String uri,
              String localName)

Look up an attribute's value by Namespace name.

See getValue(int) for a description of the possible values.

Parameters:

uri - The Namespace URI, or the empty String if the name has no Namespace URI.

localName - The local name of the attribute.

Returns:

The attribute value as a string, or null if the attribute is not in the list.

setNonNormalizedValue

void setNonNormalizedValue(int attrIndex,
                         String attrValue)

Sets the non-normalized value of the attribute at the specified index.

Parameters:

attrIndex - The attribute index.

attrValue - The new non-normalized attribute value.

getNonNormalizedValue

String getNonNormalizedValue(int attrIndex)

Returns the non-normalized value of the attribute at the specified index. If no non-normalized value is set, this method will return the same value as the getValue(int) method.

Parameters:

attrIndex - The attribute index.

setSpecified

void setSpecified(int attrIndex,
                boolean specified)

Sets whether an attribute is specified in the instance document or not.

Parameters:

attrIndex - The attribute index.

specified - True if the attribute is specified in the instance document.

isSpecified

boolean isSpecified(int attrIndex)

Returns true if the attribute is specified in the instance document.

Parameters:

attrIndex - The attribute index.

getAugmentations

Augmentations getAugmentations(int attributeIndex)

Look up an augmentation by attribute's index.

Parameters:

attributeIndex - The attribute index.

Returns:

Augmentations

getAugmentations

Augmentations getAugmentations(String uri,
                             String localPart)

Look up an augmentation by namespace name.

Parameters:

uri - The Namespace URI, or the empty string if the name has no Namespace URI.

localPart -

Returns:

Augmentations

getAugmentations

Augmentations getAugmentations(String qName)

Look up an augmentation by XML 1.0 qualified name.

Parameters:

qName - The XML 1.0 qualified name.

Returns:

Augmentations

setAugmentations

void setAugmentations(int attrIndex,
                    Augmentations augs)

Sets the augmentations of the attribute at the specified index.

Parameters:

attrIndex - The attribute index.

augs - The augmentations.