/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation . Oracle designates this
* particular file as subject to the " Classpath " exception as provided
* by Oracle in the LICENSE file that accompanied this code .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
/*
* This file is available under and governed by the GNU General Public
* License version 2 only , as published by the Free Software Foundation .
* However , the following notice accompanied the original version of this
* file and , per its terms , should not be removed :
*
* Copyright ( c ) 2004 World Wide Web Consortium ,
*
* ( Massachusetts Institute of Technology , European Research Consortium for
* Informatics and Mathematics , Keio University ) . All Rights Reserved . This
* work is distributed under the W3C ( r ) Software License [ 1 ] in the hope that
* it will be useful , but WITHOUT ANY WARRANTY ; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE .
*
* [ 1 ] http : //www.w3.org/Consortium/Legal/2002/copyright-software-20021231
*/
package org.w3c.dom;
/**
* The < code > Element < / code > interface represents an element in an HTML or XML
* document . Elements may have attributes associated with them ; since the
* < code > Element < / code > interface inherits from < code > Node < / code > , the
* generic < code > Node < / code > interface attribute < code > attributes < / code > may
* be used to retrieve the set of all attributes for an element . There are
* methods on the < code > Element < / code > interface to retrieve either an
* < code > Attr < / code > object by name or an attribute value by name . In XML ,
* where an attribute value may contain entity references , an
* < code > Attr < / code > object should be retrieved to examine the possibly
* fairly complex sub - tree representing the attribute value . On the other
* hand , in HTML , where all attributes have simple string values , methods to
* directly access an attribute value can safely be used as a convenience .
* < p > < b > Note : < / b > In DOM Level 2 , the method < code > normalize < / code > is
* inherited from the < code > Node < / code > interface where it was moved .
* < p > See also the < a href = ' http : //www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407'>Document Object Model (DOM) Level 3 Core Specification</a>.
*/
public interface Element
extends Node {
/**
* The name of the element . If < code > Node . localName < / code > is different
* from < code > null < / code > , this attribute is a qualified name . For
* example , in :
* < pre > & lt ; elementExample id = " demo " & gt ; . . .
* & lt ; / elementExample & gt ; , < / pre >
* < code > tagName < / code > has the value
* < code > " elementExample " < / code > . Note that this is case - preserving in
* XML , as are all of the operations of the DOM . The HTML DOM returns
* the < code > tagName < / code > of an HTML element in the canonical
* uppercase form , regardless of the case in the source HTML document .
*/
public String getTagName();
/**
* Retrieves an attribute value by name .
* @ param name The name of the attribute to retrieve .
* @ return The < code > Attr < / code > value as a string , or the empty string
* if that attribute does not have a specified or default value .
*/
public String getAttribute(String name);
/**
* Adds a new attribute . If an attribute with that name is already present
* in the element , its value is changed to be that of the value
* parameter . This value is a simple string ; it is not parsed as it is
* being set . So any markup ( such as syntax to be recognized as an
* entity reference ) is treated as literal text , and needs to be
* appropriately escaped by the implementation when it is written out .
* In order to assign an attribute value that contains entity
* references , the user must create an < code > Attr < / code > node plus any
* < code > Text < / code > and < code > EntityReference < / code > nodes , build the
* appropriate subtree , and use < code > setAttributeNode < / code > to assign
* it as the value of an attribute .
* < br > To set an attribute with a qualified name and namespace URI , use
* the < code > setAttributeNS < / code > method .
* @ param name The name of the attribute to create or alter .
* @ param value Value to set in string form .
* @ exception DOMException
* INVALID_CHARACTER_ERR : Raised if the specified name is not an XML
* name according to the XML version in use specified in the
* < code > Document . xmlVersion < / code > attribute .
* < br > NO_MODIFICATION_ALLOWED_ERR : Raised if this node is readonly .
*/
public void setAttribute(String name,
String value)
throws DOMException;
/**
* Removes an attribute by name . If a default value for the removed
* attribute is defined in the DTD , a new attribute immediately appears
* with the default value as well as the corresponding namespace URI ,
* local name , and prefix when applicable . The implementation may handle
* default values from other schemas similarly but applications should
* use < code > Document . normalizeDocument ( ) < / code > to guarantee this
* information is up - to - date .
* < br > If no attribute with this name is found , this method has no effect .
* < br > To remove an attribute by local name and namespace URI , use the
* < code > removeAttributeNS < / code > method .
* @ param name The name of the attribute to remove .
* @ exception DOMException
* NO_MODIFICATION_ALLOWED_ERR : Raised if this node is readonly .
*/
public void removeAttribute(String name)
throws DOMException;
/**
* Retrieves an attribute node by name .
* < br > To retrieve an attribute node by qualified name and namespace URI ,
* use the < code > getAttributeNodeNS < / code > method .
* @ param name The name ( < code > nodeName < / code > ) of the attribute to
* retrieve .
* @ return The < code > Attr < / code > node with the specified name (
* < code > nodeName < / code > ) or < code > null < / code > if there is no such
* attribute .
*/
public Attr getAttributeNode(String name);
/**
* Adds a new attribute node . If an attribute with that name (
* < code > nodeName < / code > ) is already present in the element , it is
* replaced by the new one . Replacing an attribute node by itself has no
* effect .
* < br > To add a new attribute node with a qualified name and namespace
* URI , use the < code > setAttributeNodeNS < / code > method .
* @ param newAttr The < code > Attr < / code > node to add to the attribute list .
* @ return If the < code > newAttr < / code > attribute replaces an existing
* attribute , the replaced < code > Attr < / code > node is returned ,
* otherwise < code > null < / code > is returned .
* @ exception DOMException
* WRONG_DOCUMENT_ERR : Raised if < code > newAttr < / code > was created from a
* different document than the one that created the element .
* < br > NO_MODIFICATION_ALLOWED_ERR : Raised if this node is readonly .
* < br > INUSE_ATTRIBUTE_ERR : Raised if < code > newAttr < / code > is already an
* attribute of another < code > Element < / code > object . The DOM user must
* explicitly clone < code > Attr < / code > nodes to re - use them in other
* elements .
*/
public Attr setAttributeNode(Attr newAttr)
throws DOMException;
/**
* Removes the specified attribute node . If a default value for the
* removed < code > Attr < / code > node is defined in the DTD , a new node
* immediately appears with the default value as well as the
* corresponding namespace URI , local name , and prefix when applicable .
* The implementation may handle default values from other schemas
* similarly but applications should use
* < code > Document . normalizeDocument ( ) < / code > to guarantee this
* information is up - to - date .
* @ param oldAttr The < code > Attr < / code > node to remove from the attribute
* list .
* @ return The < code > Attr < / code > node that was removed .
* @ exception DOMException
* NO_MODIFICATION_ALLOWED_ERR : Raised if this node is readonly .
* < br > NOT_FOUND_ERR : Raised if < code > oldAttr < / code > is not an attribute
* of the element .
*/
public Attr removeAttributeNode(Attr oldAttr)
throws DOMException;
/**
* Returns a < code > NodeList < / code > of all descendant < code > Elements < / code >
* with a given tag name , in document order .
* @ param name The name of the tag to match on . The special value " * "
* matches all tags .
* @ return A list of matching < code > Element < / code > nodes .
*/
public NodeList getElementsByTagName(String name);
/**
* Retrieves an attribute value by local name and namespace URI .
* < br > Per [ < a href = ' http : //www.w3.org/TR/1999/REC-xml-names-19990114/'>XML Namespaces</a>]
* , applications must use the value < code > null < / code > as the
* < code > namespaceURI < / code > parameter for methods if they wish to have
* no namespace .
* @ param namespaceURI The namespace URI of the attribute to retrieve .
* @ param localName The local name of the attribute to retrieve .
* @ return The < code > Attr < / code > value as a string , or the empty string
* if that attribute does not have a specified or default value .
* @ exception DOMException
* NOT_SUPPORTED_ERR : May be raised if the implementation does not
* support the feature < code > " XML " < / code > and the language exposed
* through the Document does not support XML Namespaces ( such as [ < a href = ' http : //www.w3.org/TR/1999/REC-html401-19991224/'>HTML 4.01</a>]).
* @ since 1 . 4 , DOM Level 2
*/
public String getAttributeNS(String namespaceURI,
String localName)
throws DOMException;
/**
* Adds a new attribute . If an attribute with the same local name and
* namespace URI is already present on the element , its prefix is
* changed to be the prefix part of the < code > qualifiedName < / code > , and
* its value is changed to be the < code > value < / code > parameter . This
* value is a simple string ; it is not parsed as it is being set . So any
* markup ( such as syntax to be recognized as an entity reference ) is
* treated as literal text , and needs to be appropriately escaped by the
* implementation when it is written out . In order to assign an
* attribute value that contains entity references , the user must create
* an < code > Attr < / code > node plus any < code > Text < / code > and
* < code > EntityReference < / code > nodes , build the appropriate subtree ,
* and use < code > setAttributeNodeNS < / code > or
* < code > setAttributeNode < / code > to assign it as the value of an
* attribute .
* < br > Per [ < a href = ' http : //www.w3.org/TR/1999/REC-xml-names-19990114/'>XML Namespaces</a>]
* , applications must use the value < code > null < / code > as the
* < code > namespaceURI < / code > parameter for methods if they wish to have
* no namespace .
* @ param namespaceURI The namespace URI of the attribute to create or
* alter .
* @ param qualifiedName The qualified name of the attribute to create or
* alter .
* @ param value The value to set in string form .
* @ exception DOMException
* INVALID_CHARACTER_ERR : Raised if the specified qualified name is not
* an XML name according to the XML version in use specified in the
* < code > Document . xmlVersion < / code > attribute .
* < br > NO_MODIFICATION_ALLOWED_ERR : Raised if this node is readonly .
* < br > NAMESPACE_ERR : Raised if the < code > qualifiedName < / code > is
* malformed per the Namespaces in XML specification , if the
* < code > qualifiedName < / code > has a prefix and the
* < code > namespaceURI < / code > is < code > null < / code > , if the
* < code > qualifiedName < / code > has a prefix that is " xml " and the
* < code > namespaceURI < / code > is different from " < a href = ' http : //www.w3.org/XML/1998/namespace'>
* http : //www.w3.org/XML/1998/namespace</a>", if the <code>qualifiedName</code> or its prefix is "xmlns" and the
* < code > namespaceURI < / code > is different from " < a href = ' http : //www.w3.org/2000/xmlns/'>http://www.w3.org/2000/xmlns/ </a>", or if the <code>namespaceURI</code> is "<a href='http://www.w3.org/2000/xmlns/'>http://www.w3.org/2000/xmlns/</a>" and neither the <code>qualifiedName</code> nor its prefix is "xmlns".
* < br > NOT_SUPPORTED_ERR : May be raised if the implementation does not
* support the feature < code > " XML " < / code > and the language exposed
* through the Document does not support XML Namespaces ( such as [ < a href = ' http : //www.w3.org/TR/1999/REC-html401-19991224/'>HTML 4.01</a>]).
* @ since 1 . 4 , DOM Level 2
*/
public void setAttributeNS(String namespaceURI,
String qualifiedName,
String value)
throws DOMException;
/**
* Removes an attribute by local name and namespace URI . If a default
* value for the removed attribute is defined in the DTD , a new
* attribute immediately appears with the default value as well as the
* corresponding namespace URI , local name , and prefix when applicable .
* The implementation may handle default values from other schemas
* similarly but applications should use
* < code > Document . normalizeDocument ( ) < / code > to guarantee this
* information is up - to - date .
* < br > If no attribute with this local name and namespace URI is found ,
* this method has no effect .
* < br > Per [ < a href = ' http : //www.w3.org/TR/1999/REC-xml-names-19990114/'>XML Namespaces</a>]
* , applications must use the value < code > null < / code > as the
* < code > namespaceURI < / code > parameter for methods if they wish to have
* no namespace .
* @ param namespaceURI The namespace URI of the attribute to remove .
* @ param localName The local name of the attribute to remove .
* @ exception DOMException
* NO_MODIFICATION_ALLOWED_ERR : Raised if this node is readonly .
* < br > NOT_SUPPORTED_ERR : May be raised if the implementation does not
* support the feature < code > " XML " < / code > and the language exposed
* through the Document does not support XML Namespaces ( such as [ < a href = ' http : //www.w3.org/TR/1999/REC-html401-19991224/'>HTML 4.01</a>]).
* @ since 1 . 4 , DOM Level 2
*/
public void removeAttributeNS(String namespaceURI,
String localName)
throws DOMException;
/**
* Retrieves an < code > Attr < / code > node by local name and namespace URI .
* < br > Per [ < a href = ' http : //www.w3.org/TR/1999/REC-xml-names-19990114/'>XML Namespaces</a>]
* , applications must use the value < code > null < / code > as the
* < code > namespaceURI < / code > parameter for methods if they wish to have
* no namespace .
* @ param namespaceURI The namespace URI of the attribute to retrieve .
* @ param localName The local name of the attribute to retrieve .
* @ return The < code > Attr < / code > node with the specified attribute local
* name and namespace URI or < code > null < / code > if there is no such
* attribute .
* @ exception DOMException
* NOT_SUPPORTED_ERR : May be raised if the implementation does not
* support the feature < code > " XML " < / code > and the language exposed
* through the Document does not support XML Namespaces ( such as [ < a href = ' http : //www.w3.org/TR/1999/REC-html401-19991224/'>HTML 4.01</a>]).
* @ since 1 . 4 , DOM Level 2
*/
public Attr getAttributeNodeNS(String namespaceURI,
String localName)
throws DOMException;
/**
* Adds a new attribute . If an attribute with that local name and that
* namespace URI is already present in the element , it is replaced by
* the new one . Replacing an attribute node by itself has no effect .
* < br > Per [ < a href = ' http : //www.w3.org/TR/1999/REC-xml-names-19990114/'>XML Namespaces</a>]
* , applications must use the value < code > null < / code > as the
* < code > namespaceURI < / code > parameter for methods if they wish to have
* no namespace .
* @ param newAttr The < code > Attr < / code > node to add to the attribute list .
* @ return If the < code > newAttr < / code > attribute replaces an existing
* attribute with the same local name and namespace URI , the replaced
* < code > Attr < / code > node is returned , otherwise < code > null < / code > is
* returned .
* @ exception DOMException
* WRONG_DOCUMENT_ERR : Raised if < code > newAttr < / code > was created from a
* different document than the one that created the element .
* < br > NO_MODIFICATION_ALLOWED_ERR : Raised if this node is readonly .
* < br > INUSE_ATTRIBUTE_ERR : Raised if < code > newAttr < / code > is already an
* attribute of another < code > Element < / code > object . The DOM user must
* explicitly clone < code > Attr < / code > nodes to re - use them in other
* elements .
* < br > NOT_SUPPORTED_ERR : May be raised if the implementation does not
* support the feature < code > " XML " < / code > and the language exposed
* through the Document does not support XML Namespaces ( such as [ < a href = ' http : //www.w3.org/TR/1999/REC-html401-19991224/'>HTML 4.01</a>]).
* @ since 1 . 4 , DOM Level 2
*/
public Attr setAttributeNodeNS(Attr newAttr)
throws DOMException;
/**
* Returns a < code > NodeList < / code > of all the descendant
* < code > Elements < / code > with a given local name and namespace URI in
* document order .
* @ param namespaceURI The namespace URI of the elements to match on . The
* special value " * " matches all namespaces .
* @ param localName The local name of the elements to match on . The
* special value " * " matches all local names .
* @ return A new < code > NodeList < / code > object containing all the matched
* < code > Elements < / code > .
* @ exception DOMException
* NOT_SUPPORTED_ERR : May be raised if the implementation does not
* support the feature < code > " XML " < / code > and the language exposed
* through the Document does not support XML Namespaces ( such as [ < a href = ' http : //www.w3.org/TR/1999/REC-html401-19991224/'>HTML 4.01</a>]).
* @ since 1 . 4 , DOM Level 2
*/
public NodeList getElementsByTagNameNS(String namespaceURI,
String localName)
throws DOMException;
/**
* Returns < code > true < / code > when an attribute with a given name is
* specified on this element or has a default value , < code > false < / code >
* otherwise .
* @ param name The name of the attribute to look for .
* @ return < code > true < / code > if an attribute with the given name is
* specified on this element or has a default value , < code > false < / code >
* otherwise .
* @ since 1 . 4 , DOM Level 2
*/
public boolean hasAttribute(String name);
/**
* Returns < code > true < / code > when an attribute with a given local name and
* namespace URI is specified on this element or has a default value ,
* < code > false < / code > otherwise .
* < br > Per [ < a href = ' http : //www.w3.org/TR/1999/REC-xml-names-19990114/'>XML Namespaces</a>]
* , applications must use the value < code > null < / code > as the
* < code > namespaceURI < / code > parameter for methods if they wish to have
* no namespace .
* @ param namespaceURI The namespace URI of the attribute to look for .
* @ param localName The local name of the attribute to look for .
* @ return < code > true < / code > if an attribute with the given local name
* and namespace URI is specified or has a default value on this
* element , < code > false < / code > otherwise .
* @ exception DOMException
* NOT_SUPPORTED_ERR : May be raised if the implementation does not
* support the feature < code > " XML " < / code > and the language exposed
* through the Document does not support XML Namespaces ( such as [ < a href = ' http : //www.w3.org/TR/1999/REC-html401-19991224/'>HTML 4.01</a>]).
* @ since 1 . 4 , DOM Level 2
*/
public boolean hasAttributeNS(String namespaceURI,
String localName)
throws DOMException;
/**
* The type information associated with this element .
* @ since 1 . 5 , DOM Level 3
*/
public TypeInfo getSchemaTypeInfo();
/**
* If the parameter < code > isId < / code > is < code > true < / code > , this method
* declares the specified attribute to be a user - determined ID attribute
* . This affects the value of < code > Attr . isId < / code > and the behavior
* of < code > Document . getElementById < / code > , but does not change any
* schema that may be in use , in particular this does not affect the
* < code > Attr . schemaTypeInfo < / code > of the specified < code > Attr < / code >
* node . Use the value < code > false < / code > for the parameter
* < code > isId < / code > to undeclare an attribute for being a
* user - determined ID attribute .
* < br > To specify an attribute by local name and namespace URI , use the
* < code > setIdAttributeNS < / code > method .
* @ param name The name of the attribute .
* @ param isId Whether the attribute is a of type ID .
* @ exception DOMException
* NO_MODIFICATION_ALLOWED_ERR : Raised if this node is readonly .
* < br > NOT_FOUND_ERR : Raised if the specified node is not an attribute
* of this element .
* @ since 1 . 5 , DOM Level 3
*/
public void setIdAttribute(String name,
boolean isId)
throws DOMException;
/**
* If the parameter < code > isId < / code > is < code > true < / code > , this method
* declares the specified attribute to be a user - determined ID attribute
* . This affects the value of < code > Attr . isId < / code > and the behavior
* of < code > Document . getElementById < / code > , but does not change any
* schema that may be in use , in particular this does not affect the
* < code > Attr . schemaTypeInfo < / code > of the specified < code > Attr < / code >
* node . Use the value < code > false < / code > for the parameter
* < code > isId < / code > to undeclare an attribute for being a
* user - determined ID attribute .
* @ param namespaceURI The namespace URI of the attribute .
* @ param localName The local name of the attribute .
* @ param isId Whether the attribute is a of type ID .
* @ exception DOMException
* NO_MODIFICATION_ALLOWED_ERR : Raised if this node is readonly .
* < br > NOT_FOUND_ERR : Raised if the specified node is not an attribute
* of this element .
* @ since 1 . 5 , DOM Level 3
*/
public void setIdAttributeNS(String namespaceURI,
String localName,
boolean isId)
throws DOMException;
/**
* If the parameter < code > isId < / code > is < code > true < / code > , this method
* declares the specified attribute to be a user - determined ID attribute
* . This affects the value of < code > Attr . isId < / code > and the behavior
* of < code > Document . getElementById < / code > , but does not change any
* schema that may be in use , in particular this does not affect the
* < code > Attr . schemaTypeInfo < / code > of the specified < code > Attr < / code >
* node . Use the value < code > false < / code > for the parameter
* < code > isId < / code > to undeclare an attribute for being a
* user - determined ID attribute .
* @ param idAttr The attribute node .
* @ param isId Whether the attribute is a of type ID .
* @ exception DOMException
* NO_MODIFICATION_ALLOWED_ERR : Raised if this node is readonly .
* < br > NOT_FOUND_ERR : Raised if the specified node is not an attribute
* of this element .
* @ since 1 . 5 , DOM Level 3
*/
public void setIdAttributeNode(Attr idAttr,
boolean isId)
throws DOMException;
}
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