+++ /dev/null
-// SAX default implementation for AttributeList.
-// http://www.saxproject.org
-// No warranty; no copyright -- use this as you will.
-// $Id: AttributeListImpl.java,v 1.6 2002/01/30 20:52:22 dbrownell Exp $
-
-package org.xml.sax.helpers;
-
-import org.xml.sax.AttributeList;
-
-import java.util.Vector;
-
-
-/**e
- * Default implementation for AttributeList.
- *
- * <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>AttributeList implements the deprecated SAX1 {@link
- * org.xml.sax.AttributeList AttributeList} interface, and has been
- * replaced by the new SAX2 {@link org.xml.sax.helpers.AttributesImpl
- * AttributesImpl} interface.</p>
- *
- * <p>This class provides a convenience implementation of the SAX
- * {@link org.xml.sax.AttributeList AttributeList} interface. This
- * implementation is useful both for SAX parser writers, who can use
- * it to provide attributes to the application, and for SAX application
- * writers, who can use it to create a persistent copy of an element's
- * attribute specifications:</p>
- *
- * <pre>
- * private AttributeList myatts;
- *
- * public void startElement (String name, AttributeList atts)
- * {
- * // create a persistent copy of the attribute list
- * // for use outside this method
- * myatts = new AttributeListImpl(atts);
- * [...]
- * }
- * </pre>
- *
- * <p>Please note that SAX parsers are not required to use this
- * class to provide an implementation of AttributeList; it is
- * supplied only as an optional convenience. In particular,
- * parser writers are encouraged to invent more efficient
- * implementations.</p>
- *
- * @deprecated This class implements a deprecated interface,
- * {@link org.xml.sax.AttributeList AttributeList};
- * that interface has been replaced by
- * {@link org.xml.sax.Attributes Attributes},
- * which is implemented in the
- * {@link org.xml.sax.helpers.AttributesImpl
- * AttributesImpl} helper class.
- * @since SAX 1.0
- * @author David Megginson
- * @version 2.0.1 (sax2r2)
- * @see org.xml.sax.AttributeList
- * @see org.xml.sax.DocumentHandler#startElement
- */
-public class AttributeListImpl implements AttributeList
-{
-
- /**
- * Create an empty attribute list.
- *
- * <p>This constructor is most useful for parser writers, who
- * will use it to create a single, reusable attribute list that
- * can be reset with the clear method between elements.</p>
- *
- * @see #addAttribute
- * @see #clear
- */
- public AttributeListImpl ()
- {
- }
-
-
- /**
- * Construct a persistent copy of an existing attribute list.
- *
- * <p>This constructor is most useful for application writers,
- * who will use it to create a persistent copy of an existing
- * attribute list.</p>
- *
- * @param atts The attribute list to copy
- * @see org.xml.sax.DocumentHandler#startElement
- */
- public AttributeListImpl (AttributeList atts)
- {
- setAttributeList(atts);
- }
-
-
-\f
- ////////////////////////////////////////////////////////////////////
- // Methods specific to this class.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Set the attribute list, discarding previous contents.
- *
- * <p>This method allows an application writer to reuse an
- * attribute list easily.</p>
- *
- * @param atts The attribute list to copy.
- */
- public void setAttributeList (AttributeList atts)
- {
- int count = atts.getLength();
-
- clear();
-
- for (int i = 0; i < count; i++) {
- addAttribute(atts.getName(i), atts.getType(i), atts.getValue(i));
- }
- }
-
-
- /**
- * Add an attribute to an attribute list.
- *
- * <p>This method is provided for SAX parser writers, to allow them
- * to build up an attribute list incrementally before delivering
- * it to the application.</p>
- *
- * @param name The attribute name.
- * @param type The attribute type ("NMTOKEN" for an enumeration).
- * @param value The attribute value (must not be null).
- * @see #removeAttribute
- * @see org.xml.sax.DocumentHandler#startElement
- */
- public void addAttribute (String name, String type, String value)
- {
- names.addElement(name);
- types.addElement(type);
- values.addElement(value);
- }
-
-
- /**
- * Remove an attribute from the list.
- *
- * <p>SAX application writers can use this method to filter an
- * attribute out of an AttributeList. Note that invoking this
- * method will change the length of the attribute list and
- * some of the attribute's indices.</p>
- *
- * <p>If the requested attribute is not in the list, this is
- * a no-op.</p>
- *
- * @param name The attribute name.
- * @see #addAttribute
- */
- public void removeAttribute (String name)
- {
- int i = names.indexOf(name);
-
- if (i >= 0) {
- names.removeElementAt(i);
- types.removeElementAt(i);
- values.removeElementAt(i);
- }
- }
-
-
- /**
- * Clear the attribute list.
- *
- * <p>SAX parser writers can use this method to reset the attribute
- * list between DocumentHandler.startElement events. Normally,
- * it will make sense to reuse the same AttributeListImpl object
- * rather than allocating a new one each time.</p>
- *
- * @see org.xml.sax.DocumentHandler#startElement
- */
- public void clear ()
- {
- names.removeAllElements();
- types.removeAllElements();
- values.removeAllElements();
- }
-
-
-\f
- ////////////////////////////////////////////////////////////////////
- // Implementation of org.xml.sax.AttributeList
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Return the number of attributes in the list.
- *
- * @return The number of attributes in the list.
- * @see org.xml.sax.AttributeList#getLength
- */
- @Override
- public int getLength ()
- {
- return names.size();
- }
-
-
- /**
- * Get the name of an attribute (by position).
- *
- * @param i The position of the attribute in the list.
- * @return The attribute name as a string, or null if there
- * is no attribute at that position.
- * @see org.xml.sax.AttributeList#getName(int)
- */
- @Override
- public String getName (int i)
- {
- if (i < 0) {
- return null;
- }
- try {
- return (String)names.elementAt(i);
- } catch (ArrayIndexOutOfBoundsException e) {
- return null;
- }
- }
-
-
- /**
- * Get the type of an attribute (by position).
- *
- * @param i The position of the attribute in the list.
- * @return The attribute type as a string ("NMTOKEN" for an
- * enumeration, and "CDATA" if no declaration was
- * read), or null if there is no attribute at
- * that position.
- * @see org.xml.sax.AttributeList#getType(int)
- */
- @Override
- public String getType (int i)
- {
- if (i < 0) {
- return null;
- }
- try {
- return (String)types.elementAt(i);
- } catch (ArrayIndexOutOfBoundsException e) {
- return null;
- }
- }
-
-
- /**
- * Get the value of an attribute (by position).
- *
- * @param i The position of the attribute in the list.
- * @return The attribute value as a string, or null if
- * there is no attribute at that position.
- * @see org.xml.sax.AttributeList#getValue(int)
- */
- @Override
- public String getValue (int i)
- {
- if (i < 0) {
- return null;
- }
- try {
- return (String)values.elementAt(i);
- } catch (ArrayIndexOutOfBoundsException e) {
- return null;
- }
- }
-
-
- /**
- * Get the type of an attribute (by name).
- *
- * @param name The attribute name.
- * @return The attribute type as a string ("NMTOKEN" for an
- * enumeration, and "CDATA" if no declaration was
- * read).
- * @see org.xml.sax.AttributeList#getType(java.lang.String)
- */
- @Override
- public String getType (String name)
- {
- return getType(names.indexOf(name));
- }
-
-
- /**
- * Get the value of an attribute (by name).
- *
- * @param name The attribute name.
- * @see org.xml.sax.AttributeList#getValue(java.lang.String)
- */
- @Override
- public String getValue (String name)
- {
- return getValue(names.indexOf(name));
- }
-
-
-\f
- ////////////////////////////////////////////////////////////////////
- // Internal state.
- ////////////////////////////////////////////////////////////////////
-
- Vector names = new Vector();
- Vector types = new Vector();
- Vector values = new Vector();
-
-}
-
-// end of AttributeListImpl.java
git://source.jalview.org / jalview.git / blobdiff