/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.xerces.xni;
/**
* 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.
* <p>
* 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.
*
* @see XMLDocumentHandler#startElement
*
* @author Andy Clark, IBM
*
* @version $Id: XMLAttributes.java 570130 2007-08-27 14:10:55Z mrglavas $
*/
public interface XMLAttributes {
//
// XMLAttributes methods
//
/**
* 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 <code>setNonNormalizedValue</code> method. Also,
* the added attribute will be marked as specified in the XML instance
* document unless set otherwise using the <code>setSpecified</code>
* method.
* <p>
* <strong>Note:</strong> If an attribute of the same name already
* exists, the old values for the attribute are replaced by the new
* values.
*
* @param attrName The attribute name.
* @param 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)".
* @param attrValue The attribute value.
*
* @return Returns the attribute index.
*
* @see #setNonNormalizedValue
* @see #setSpecified
*/
public int addAttribute(QName attrName, String attrType, String attrValue);
/**
* Removes all of the attributes. This method will also remove all
* entities associated to the attributes.
*/
public void removeAllAttributes();
/**
* Removes the attribute at the specified index.
* <p>
* <strong>Note:</strong> This operation changes the indexes of all
* attributes following the attribute at the specified index.
*
* @param attrIndex The attribute index.
*/
public void removeAttributeAt(int attrIndex);
/**
* Returns the number of attributes in the list.
* <p>
* Once you know the number of attributes, you can iterate
* through the list.
*
* @see #getURI(int)
* @see #getLocalName(int)
* @see #getQName(int)
* @see #getType(int)
* @see #getValue(int)
*/
public int getLength();
/**
* Look up the index of an attribute by XML 1.0 qualified name.
*
* @param qName The qualified (prefixed) name.
*
* @return The index of the attribute, or -1 if it does not
* appear in the list.
*/
public int getIndex(String qName);
/**
* Look up the index of an attribute by Namespace name.
*
* @param uri The Namespace URI, or the empty string if
* the name has no Namespace URI.
* @param localPart The attribute's local name.
*
* @return The index of the attribute, or -1 if it does not
* appear in the list.
*/
public int getIndex(String uri, String localPart);
/**
* Sets the name of the attribute at the specified index.
*
* @param attrIndex The attribute index.
* @param attrName The new attribute name.
*/
public void setName(int attrIndex, QName attrName);
/**
* Sets the fields in the given QName structure with the values
* of the attribute name at the specified index.
*
* @param attrIndex The attribute index.
* @param attrName The attribute name structure to fill in.
*/
public void getName(int attrIndex, QName attrName);
/**
* Returns the prefix of the attribute at the specified index.
*
* @param index The index of the attribute.
*/
public String getPrefix(int index);
/**
* Look up an attribute's Namespace URI by index.
*
* @param index The attribute index (zero-based).
*
* @return The Namespace URI, or the empty string if none
* is available, or null if the index is out of
* range.
*
* @see #getLength
*/
public String getURI(int index);
/**
* Look up an attribute's local name by index.
*
* @param index The attribute index (zero-based).
*
* @return The local name, or the empty string if Namespace
* processing is not being performed, or null
* if the index is out of range.
*
* @see #getLength
*/
public String getLocalName(int index);
/**
* Look up an attribute's XML 1.0 qualified name by index.
*
* @param index The attribute index (zero-based).
*
* @return The XML 1.0 qualified name, or the empty string
* if none is available, or null if the index
* is out of range.
*
* @see #getLength
*/
public String getQName(int index);
/**
* Sets the type of the attribute at the specified index.
*
* @param attrIndex The attribute index.
* @param 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)".
*/
public void setType(int attrIndex, String attrType);
/**
* Look up an attribute's type by index.
* <p>
* The attribute type is one of the strings "CDATA", "ID",
* "IDREF", "IDREFS", "NMTOKEN", "NMTOKENS", "ENTITY", "ENTITIES",
* or "NOTATION" (always in upper case).
* <p>
* 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").
* <p>
* For an enumerated attribute that is not a notation, the
* parser will report the type as "NMTOKEN".
*
* @param index The attribute index (zero-based).
*
* @return The attribute's type as a string, or null if the
* index is out of range.
*
* @see #getLength
*/
public String getType(int index);
/**
* Look up an attribute's type by XML 1.0 qualified name.
* <p>
* See {@link #getType(int) getType(int)} for a description
* of the possible types.
*
* @param qName The XML 1.0 qualified name.
*
* @return The attribute type as a string, or null if the
* attribute is not in the list or if qualified names
* are not available.
*/
public String getType(String qName);
/**
* Look up an attribute's type by Namespace name.
* <p>
* See {@link #getType(int) getType(int)} for a description
* of the possible types.
*
* @param uri The Namespace URI, or the empty String if the
* name has no Namespace URI.
* @param localName The local name of the attribute.
*
* @return The attribute type as a string, or null if the
* attribute is not in the list or if Namespace
* processing is not being performed.
*/
public String getType(String uri, String localName);
/**
* Sets the value of the attribute at the specified index. This
* method will overwrite the non-normalized value of the attribute.
*
* @param attrIndex The attribute index.
* @param attrValue The new attribute value.
*
* @see #setNonNormalizedValue
*/
public void setValue(int attrIndex, String attrValue);
/**
* Look up an attribute's value by index.
* <p>
* 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.
*
* @param index The attribute index (zero-based).
*
* @return The attribute's value as a string, or null if the
* index is out of range.
*
* @see #getLength
*/
public String getValue(int index);
/**
* Look up an attribute's value by XML 1.0 qualified name.
* <p>
* See {@link #getValue(int) getValue(int)} for a description
* of the possible values.
*
* @param qName The XML 1.0 qualified name.
*
* @return The attribute value as a string, or null if the
* attribute is not in the list or if qualified names
* are not available.
*/
public String getValue(String qName);
/**
* Look up an attribute's value by Namespace name.
* <p>
* See {@link #getValue(int) getValue(int)} for a description
* of the possible values.
*
* @param uri The Namespace URI, or the empty String if the
* name has no Namespace URI.
* @param localName The local name of the attribute.
*
* @return The attribute value as a string, or null if the
* attribute is not in the list.
*/
public String getValue(String uri, String localName);
/**
* Sets the non-normalized value of the attribute at the specified
* index.
*
* @param attrIndex The attribute index.
* @param attrValue The new non-normalized attribute value.
*/
public void setNonNormalizedValue(int attrIndex, String attrValue);
/**
* 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 <code>getValue(int)</code> method.
*
* @param attrIndex The attribute index.
*/
public String getNonNormalizedValue(int attrIndex);
/**
* Sets whether an attribute is specified in the instance document
* or not.
*
* @param attrIndex The attribute index.
* @param specified True if the attribute is specified in the instance
* document.
*/
public void setSpecified(int attrIndex, boolean specified);
/**
* Returns true if the attribute is specified in the instance document.
*
* @param attrIndex The attribute index.
*/
public boolean isSpecified(int attrIndex);
/**
* Look up an augmentation by attribute's index.
*
* @param attributeIndex The attribute index.
* @return Augmentations
*/
public Augmentations getAugmentations (int attributeIndex);
/**
* Look up an augmentation by namespace name.
*
* @param uri The Namespace URI, or the empty string if
* the name has no Namespace URI.
* @param localPart
* @return Augmentations
*/
public Augmentations getAugmentations (String uri, String localPart);
/**
* Look up an augmentation by XML 1.0 qualified name.
* <p>
*
* @param qName The XML 1.0 qualified name.
*
* @return Augmentations
*
*/
public Augmentations getAugmentations(String qName);
/**
* Sets the augmentations of the attribute at the specified index.
*
* @param attrIndex The attribute index.
* @param augs The augmentations.
*/
public void setAugmentations(int attrIndex, Augmentations augs);
} // interface XMLAttributes
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