Examples of org.apache.xerces.dom.AttrImpl

org.apache.xerces.dom.AttrImpl
Attribute represents an XML-style attribute of an Element. Typically, the allowable values are controlled by its declaration in the Document Type Definition (DTD) governing this kind of document.
If the attribute has not been explicitly assigned a value, but has been declared in the DTD, it will exist and have that default. Only if neither the document nor the DTD specifies a value will the Attribute really be considered absent and have no value; in that case, querying the attribute will return null.
Attributes may have multiple children that contain their data. (XML allows attributes to contain entity references, and tokenized attribute types such as NMTOKENS may have a child for each token.) For convenience, the Attribute object's getValue() method returns the string version of the attribute's value.
Attributes are not children of the Elements they belong to, in the usual sense, and have no valid Parent reference. However, the spec says they _do_ belong to a specific Element, and an INUSE exception is to be thrown if the user attempts to explicitly share them between elements.
Note that Elements do not permit attributes to appear to be shared (see the INUSE exception), so this object's mutability is officially not an issue.
Note: The ownerNode attribute is used to store the Element the Attr node is associated with. Attr nodes do not have parent nodes. Besides, the getOwnerElement() method can be used to get the element node this attribute is associated with.
AttrImpl does not support Namespaces. AttrNSImpl, which inherits from it, does. @see AttrNSImpl @version @since PR-DOM-Level-1-19980818.


                // REVISIT: Check for uniqueness of element name? -Ac


                // create attribute and set properties
                boolean nsEnabled = fNamespaceAware;
                AttrImpl attr;
                if (nsEnabled) {
                    String namespaceURI = null;
                    // DOM Level 2 wants all namespace declaration attributes
                    // to be bound to "http://www.w3.org/2000/xmlns/"
                    // So as long as the XML parser doesn't do it, it needs to
                    // done here.
                    if (attributeName.startsWith("xmlns:") ||
                        attributeName.equals("xmlns")) {
                        namespaceURI = NamespaceContext.XMLNS_URI;
                    }
                    attr = (AttrImpl)fDocumentImpl.createAttributeNS(namespaceURI,
                                                                attributeName);
                }
                else {
                    attr = (AttrImpl)fDocumentImpl.createAttribute(attributeName);
                }
                attr.setValue(defaultValue.toString());
                attr.setSpecified(false);


                // add default attribute to element definition
                if (nsEnabled){
                    elementDef.getAttributes().setNamedItemNS(attr);
                }

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                // get attribute name and value index
                String attrName      = fStringPool.toString(attrNameIndex);
                String attrValue     = fStringPool.toString(attDefaultValue);


                // create attribute and set properties
                AttrImpl attr = (AttrImpl)fDocumentImpl.createAttribute(attrName);
                attr.setValue(attrValue);
                attr.setSpecified(false);


                // add default attribute to element definition
                elementDef.getAttributes().setNamedItem(attr);
            }

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                // NOTE: The specified value MUST be set after you set
                //       the node value because that turns the "specified"
                //       flag to "true" which may overwrite a "false"
                //       value from the attribute list. -Ac
                if (fDocumentImpl != null) {
                    AttrImpl attrImpl = (AttrImpl) attr;
                    Object type = null;
                    boolean id = false;
                    
                    // REVISIT: currently it is possible that someone turns off
                    // namespaces and turns on xml schema validation
                    // To avoid classcast exception in AttrImpl check for namespaces
                    // however the correct solution should probably disallow setting
                    // namespaces to false when schema processing is turned on.
                    if (attrPSVI != null && fNamespaceAware) {
                        // XML Schema
                        type = attrPSVI.getMemberTypeDefinition ();
                        if (type == null) {
                            type = attrPSVI.getTypeDefinition ();
                            if (type != null) {
                                id = ((XSSimpleType) type).isIDType ();
                                attrImpl.setType (type);
                            }
                        }
                        else {
                            id = ((XSSimpleType) type).isIDType ();
                            attrImpl.setType (type);
                        }
                    }
                    else {
                        // DTD
                        boolean isDeclared = Boolean.TRUE.equals (attributes.getAugmentations (i).getItem (Constants.ATTRIBUTE_DECLARED));
                        // For DOM Level 3 TypeInfo, the type name must
                        // be null if this attribute has not been declared
                        // in the DTD.
                        if (isDeclared) {
                            type = attributes.getType (i);
                            id = "ID".equals (type);
                        }
                        attrImpl.setType (type);
                    }
                    
                    if (id) {
                        ((ElementImpl) el).setIdAttributeNode (attr, true);
                    }
                    
                    attrImpl.setSpecified (attributes.isSpecified (i));
                    // REVISIT: Handle entities in attribute value.
                }
            }
            setCharacterData (false);

View Full Code Here

                
                // REVISIT: Check for uniqueness of element name? -Ac
                
                // create attribute and set properties
                boolean nsEnabled = fNamespaceAware;
                AttrImpl attr;
                if (nsEnabled) {
                    String namespaceURI = null;
                    // DOM Level 2 wants all namespace declaration attributes
                    // to be bound to "http://www.w3.org/2000/xmlns/"
                    // So as long as the XML parser doesn't do it, it needs to
                    // done here.
                    if (attributeName.startsWith ("xmlns:") ||
                    attributeName.equals ("xmlns")) {
                        namespaceURI = NamespaceContext.XMLNS_URI;
                    }
                    attr = (AttrImpl)fDocumentImpl.createAttributeNS (namespaceURI,
                    attributeName);
                }
                else {
                    attr = (AttrImpl)fDocumentImpl.createAttribute (attributeName);
                }
                attr.setValue (defaultValue.toString ());
                attr.setSpecified (false);
                attr.setIdAttribute ("ID".equals (type));
                
                // add default attribute to element definition
                if (nsEnabled){
                    elementDef.getAttributes ().setNamedItemNS (attr);
                }

View Full Code Here

                // NOTE: The specified value MUST be set after you set
                //       the node value because that turns the "specified"
                //       flag to "true" which may overwrite a "false"
                //       value from the attribute list. -Ac
                if (fDocumentImpl != null) {
                    AttrImpl attrImpl = (AttrImpl) attr;
                    Object type = null;
                    boolean id = false;
                    
                    // REVISIT: currently it is possible that someone turns off
                    // namespaces and turns on xml schema validation
                    // To avoid classcast exception in AttrImpl check for namespaces
                    // however the correct solution should probably disallow setting
                    // namespaces to false when schema processing is turned on.
                    if (attrPSVI != null && fNamespaceAware) {
                        // XML Schema
                        type = attrPSVI.getMemberTypeDefinition ();
                        if (type == null) {
                            type = attrPSVI.getTypeDefinition ();
                            if (type != null) {
                                id = ((XSSimpleType) type).isIDType ();
                                attrImpl.setType (type);
                            }
                        }
                        else {
                            id = ((XSSimpleType) type).isIDType ();
                            attrImpl.setType (type);
                        }
                    }
                    else {
                        // DTD
                        boolean isDeclared = Boolean.TRUE.equals (attributes.getAugmentations (i).getItem (Constants.ATTRIBUTE_DECLARED));
                        // For DOM Level 3 TypeInfo, the type name must
                        // be null if this attribute has not been declared
                        // in the DTD.
                        if (isDeclared) {
                            type = attributes.getType (i);
                            id = "ID".equals (type);
                        }
                        attrImpl.setType (type);
                    }
                    
                    if (id) {
                        ((ElementImpl) el).setIdAttributeNode (attr, true);
                    }
                    
                    attrImpl.setSpecified (attributes.isSpecified (i));
                    // REVISIT: Handle entities in attribute value.
                }
            }
            setCharacterData (false);

View Full Code Here

                
                // REVISIT: Check for uniqueness of element name? -Ac
                
                // create attribute and set properties
                boolean nsEnabled = fNamespaceAware;
                AttrImpl attr;
                if (nsEnabled) {
                    String namespaceURI = null;
                    // DOM Level 2 wants all namespace declaration attributes
                    // to be bound to "http://www.w3.org/2000/xmlns/"
                    // So as long as the XML parser doesn't do it, it needs to
                    // done here.
                    if (attributeName.startsWith ("xmlns:") ||
                    attributeName.equals ("xmlns")) {
                        namespaceURI = NamespaceContext.XMLNS_URI;
                    }
                    attr = (AttrImpl)fDocumentImpl.createAttributeNS (namespaceURI,
                    attributeName);
                }
                else {
                    attr = (AttrImpl)fDocumentImpl.createAttribute (attributeName);
                }
                attr.setValue (defaultValue.toString ());
                attr.setSpecified (false);
                attr.setIdAttribute ("ID".equals (type));
                
                // add default attribute to element definition
                if (nsEnabled){
                    elementDef.getAttributes ().setNamedItemNS (attr);
                }

View Full Code Here

                // get attribute name and value index
                String attrName      = fStringPool.toString(attrNameIndex);
                String attrValue     = fStringPool.toString(attDefaultValue);


                // create attribute and set properties
                AttrImpl attr = (AttrImpl)fDocumentImpl.createAttribute(attrName);
                attr.setValue(attrValue);
                attr.setSpecified(false);


                // add default attribute to element definition
                elementDef.getAttributes().setNamedItem(attr);
            }

View Full Code Here

        // If it's a Xerces DOM store type information for attributes, set idness, etc..
        else {
            elem = fDocumentImpl.createElementNS(element.uri, element.rawname, element.localpart);
            for (int i = 0; i < attrCount; ++i) {
                attributes.getName(i, fAttributeQName);
                AttrImpl attr = (AttrImpl) fDocumentImpl.createAttributeNS(fAttributeQName.uri, 
                        fAttributeQName.rawname, fAttributeQName.localpart);
                attr.setValue(attributes.getValue(i));
                elem.setAttributeNodeNS(attr);
                
                // write type information to this attribute
                AttributePSVI attrPSVI = (AttributePSVI) attributes.getAugmentations(i).getItem (Constants.ATTRIBUTE_PSVI);
                if (attrPSVI != null) {
                    if (fStorePSVI) {
                        ((PSVIAttrNSImpl) attr).setPSVI(attrPSVI);
                    }
                    Object type = attrPSVI.getMemberTypeDefinition();
                    if (type == null) {
                        type = attrPSVI.getTypeDefinition();
                        if (type != null) {
                            attr.setType (type);
                            if (((XSSimpleType) type).isIDType()) {
                                ((ElementImpl) elem).setIdAttributeNode (attr, true);
                            }
                        }
                    }
                    else {
                        attr.setType (type);
                        if (((XSSimpleType) type).isIDType()) {
                            ((ElementImpl) elem).setIdAttributeNode (attr, true);
                        }
                    }
                }
                attr.setSpecified(attributes.isSpecified(i));
            }
        }
        append(elem);
        fCurrentNode = elem;
        if (fFragmentRoot == null) {

View Full Code Here

                // NOTE: The specified value MUST be set after you set
                //       the node value because that turns the "specified"
                //       flag to "true" which may overwrite a "false"
                //       value from the attribute list. -Ac
                if (fDocumentImpl != null) {
                    AttrImpl attrImpl = (AttrImpl) attr;
                    Object type = null;
                    boolean id = false;


                    // REVISIT: currently it is possible that someone turns off
                    // namespaces and turns on xml schema validation
                    // To avoid classcast exception in AttrImpl check for namespaces
                    // however the correct solution should probably disallow setting
                    // namespaces to false when schema processing is turned on.
                    if (attrPSVI != null && fNamespaceAware) {
                        // XML Schema
                        type = attrPSVI.getMemberTypeDefinition ();
                        if (type == null) {
                            type = attrPSVI.getTypeDefinition ();
                            if (type != null) {
                                id = ((XSSimpleType) type).isIDType ();
                                attrImpl.setType (type);
                            }
                        }
                        else {
                            id = ((XSSimpleType) type).isIDType ();
                            attrImpl.setType (type);
                        }
                    }
                    else {
                        // DTD
                        boolean isDeclared = Boolean.TRUE.equals (attributes.getAugmentations (i).getItem (Constants.ATTRIBUTE_DECLARED));
                        // For DOM Level 3 TypeInfo, the type name must
                        // be null if this attribute has not been declared
                        // in the DTD.
                        if (isDeclared) {
                            type = attributes.getType (i);
                            id = "ID".equals (type);
                        }
                        attrImpl.setType (type);
                    }


                    if (id) {
                        ((ElementImpl) el).setIdAttributeNode (attr, true);
                    }


                    attrImpl.setSpecified (specified);
                    // REVISIT: Handle entities in attribute value.
                }
            }
            setCharacterData (false);

View Full Code Here


                // REVISIT: Check for uniqueness of element name? -Ac


                // create attribute and set properties
                boolean nsEnabled = fNamespaceAware;
                AttrImpl attr;
                if (nsEnabled) {
                    String namespaceURI = null;
                    // DOM Level 2 wants all namespace declaration attributes
                    // to be bound to "http://www.w3.org/2000/xmlns/"
                    // So as long as the XML parser doesn't do it, it needs to
                    // done here.
                    if (attributeName.startsWith("xmlns:") ||
                        attributeName.equals("xmlns")) {
                        namespaceURI = NamespaceContext.XMLNS_URI;
                    }
                    else if (attributeName.startsWith("xml:")) {
                        namespaceURI = NamespaceContext.XML_URI;
                    }
                    attr = (AttrImpl)fDocumentImpl.createAttributeNS (namespaceURI,
                    attributeName);
                }
                else {
                    attr = (AttrImpl)fDocumentImpl.createAttribute (attributeName);
                }
                attr.setValue (defaultValue.toString ());
                attr.setSpecified (false);
                attr.setIdAttribute ("ID".equals (type));


                // add default attribute to element definition
                if (nsEnabled){
                    elementDef.getAttributes ().setNamedItemNS (attr);
                }

View Full Code Here

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