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Diffstat (limited to 'libjava/external/sax/org/xml/sax/Attributes.java')
-rw-r--r-- | libjava/external/sax/org/xml/sax/Attributes.java | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/libjava/external/sax/org/xml/sax/Attributes.java b/libjava/external/sax/org/xml/sax/Attributes.java new file mode 100644 index 00000000000..51735908936 --- /dev/null +++ b/libjava/external/sax/org/xml/sax/Attributes.java @@ -0,0 +1,257 @@ +// Attributes.java - attribute list with Namespace support +// http://www.saxproject.org +// Written by David Megginson +// NO WARRANTY! This class is in the public domain. +// $Id: Attributes.java,v 1.1 2004/12/23 22:38:42 mark Exp $ + +package org.xml.sax; + + +/** + * Interface for a list of XML attributes. + * + * <blockquote> + * <em>This module, both source code and documentation, is in the + * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em> + * See <a href='http://www.saxproject.org'>http://www.saxproject.org</a> + * for further information. + * </blockquote> + * + * <p>This interface allows access to a list of attributes in + * three different ways:</p> + * + * <ol> + * <li>by attribute index;</li> + * <li>by Namespace-qualified name; or</li> + * <li>by qualified (prefixed) name.</li> + * </ol> + * + * <p>The list will not contain attributes that were declared + * #IMPLIED but not specified in the start tag. It will also not + * contain attributes used as Namespace declarations (xmlns*) unless + * the <code>http://xml.org/sax/features/namespace-prefixes</code> + * feature is set to <var>true</var> (it is <var>false</var> by + * default). + * Because SAX2 conforms to the original "Namespaces in XML" + * recommendation, it normally does not + * give namespace declaration attributes a namespace URI. + * </p> + * + * <p>Some SAX2 parsers may support using an optional feature flag + * (<code>http://xml.org/sax/features/xmlns-uris</code>) to request + * that those attributes be given URIs, conforming to a later + * backwards-incompatible revision of that recommendation. (The + * attribute's "local name" will be the prefix, or "xmlns" when + * defining a default element namespace.) For portability, handler + * code should always resolve that conflict, rather than requiring + * parsers that can change the setting of that feature flag. </p> + * + * <p>If the namespace-prefixes feature (see above) is + * <var>false</var>, access by qualified name may not be available; if + * the <code>http://xml.org/sax/features/namespaces</code> feature is + * <var>false</var>, access by Namespace-qualified names may not be + * available.</p> + * + * <p>This interface replaces the now-deprecated SAX1 {@link + * org.xml.sax.AttributeList AttributeList} interface, which does not + * contain Namespace support. In addition to Namespace support, it + * adds the <var>getIndex</var> methods (below).</p> + * + * <p>The order of attributes in the list is unspecified, and will + * vary from implementation to implementation.</p> + * + * @since SAX 2.0 + * @author David Megginson + * @version 2.0.1 (sax2r2) + * @see org.xml.sax.helpers.AttributesImpl + * @see org.xml.sax.ext.DeclHandler#attributeDecl + */ +public interface Attributes +{ + + + //////////////////////////////////////////////////////////////////// + // Indexed access. + //////////////////////////////////////////////////////////////////// + + + /** + * Return the number of attributes in the list. + * + * <p>Once you know the number of attributes, you can iterate + * through the list.</p> + * + * @return The number of attributes in the list. + * @see #getURI(int) + * @see #getLocalName(int) + * @see #getQName(int) + * @see #getType(int) + * @see #getValue(int) + */ + public abstract int getLength (); + + + /** + * 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 abstract 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 abstract String getLocalName (int index); + + + /** + * Look up an attribute's XML qualified (prefixed) name by index. + * + * @param index The attribute index (zero-based). + * @return The XML qualified name, or the empty string + * if none is available, or null if the index + * is out of range. + * @see #getLength + */ + public abstract String getQName (int index); + + + /** + * 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> + * + * <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> + * + * <p>For an enumerated attribute that is not a notation, the + * parser will report the type as "NMTOKEN".</p> + * + * @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 abstract String getType (int index); + + + /** + * 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.</p> + * + * @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 abstract String getValue (int index); + + + + //////////////////////////////////////////////////////////////////// + // Name-based query. + //////////////////////////////////////////////////////////////////// + + + /** + * 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 localName 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 localName); + + + /** + * Look up the index of an attribute by XML qualified (prefixed) 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 an attribute's type by Namespace name. + * + * <p>See {@link #getType(int) getType(int)} for a description + * of the possible types.</p> + * + * @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 abstract String getType (String uri, String localName); + + + /** + * Look up an attribute's type by XML qualified (prefixed) name. + * + * <p>See {@link #getType(int) getType(int)} for a description + * of the possible types.</p> + * + * @param qName The XML 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 abstract String getType (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.</p> + * + * @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 abstract String getValue (String uri, String localName); + + + /** + * Look up an attribute's value by XML qualified (prefixed) name. + * + * <p>See {@link #getValue(int) getValue(int)} for a description + * of the possible values.</p> + * + * @param qName The XML 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 abstract String getValue (String qName); + +} + +// end of Attributes.java |