This is the original SAX1 interface for reporting an element's * attributes. Unlike the new {@link org.xml.sax.Attributes Attributes} * interface, it does not support Namespace-related information. * *
When an attribute list is supplied as part of a * {@link org.xml.sax.DocumentHandler#startElement startElement} * event, the list will return valid results only during the * scope of the event; once the event handler returns control * to the parser, the attribute list is invalid. To save a * persistent copy of the attribute list, use the SAX1 * {@link org.xml.sax.helpers.AttributeListImpl AttributeListImpl} * helper class. * *
An attribute list includes only attributes that have been * specified or defaulted: #IMPLIED attributes will not be included. * *
There are two ways for the SAX application to obtain information * from the AttributeList. First, it can iterate through the entire * list: * *
{@code
* public void startElement (String name, AttributeList atts) {
* for (int i = 0; i < atts.getLength(); i++) {
* String name = atts.getName(i);
* String type = atts.getType(i);
* String value = atts.getValue(i);
* [...]
* }
* }
* }
*
* (Note that the result of getLength() will be zero if there * are no attributes.) * *
As an alternative, the application can request the value or * type of specific attributes: * *
* public void startElement (String name, AttributeList atts) {
* String identifier = atts.getValue("id");
* String label = atts.getValue("label");
* [...]
* }
*
*
* @deprecated This interface has been replaced by the SAX2
* {@link org.xml.sax.Attributes Attributes}
* interface, which includes Namespace support.
* @since 1.4, SAX 1.0
* @author David Megginson
* @see org.xml.sax.DocumentHandler#startElement startElement
* @see org.xml.sax.helpers.AttributeListImpl AttributeListImpl
*/
@Deprecated(since="1.5")
public interface AttributeList {
////////////////////////////////////////////////////////////////////
// Iteration methods.
////////////////////////////////////////////////////////////////////
/**
* Return the number of attributes in this list.
*
* The SAX parser may provide attributes in any * arbitrary order, regardless of the order in which they were * declared or specified. The number of attributes may be * zero. * * @return The number of attributes in the list. */ public abstract int getLength (); /** * Return the name of an attribute in this list (by position). * *
The names must be unique: the SAX parser shall not include the * same attribute twice. Attributes without values (those declared * #IMPLIED without a value specified in the start tag) will be * omitted from the list. * *
If the attribute name has a namespace prefix, the prefix * will still be attached. * * @param i The index of the attribute in the list (starting at 0). * @return The name of the indexed attribute, or null * if the index is out of range. * @see #getLength */ public abstract String getName (int i); /** * Return the type of an attribute in the list (by position). * *
The attribute type is one of the strings "CDATA", "ID", * "IDREF", "IDREFS", "NMTOKEN", "NMTOKENS", "ENTITY", "ENTITIES", * or "NOTATION" (always in upper case). * *
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 Recommentation * (clause 3.3.3, "Attribute-Value Normalization"). * *
For an enumerated attribute that is not a notation, the * parser will report the type as "NMTOKEN". * * @param i The index of the attribute in the list (starting at 0). * @return The attribute type as a string, or * null if the index is out of range. * @see #getLength * @see #getType(java.lang.String) */ public abstract String getType (int i); /** * Return the value of an attribute in the list (by position). * *
If the attribute value is a list of tokens (IDREFS, * ENTITIES, or NMTOKENS), the tokens will be concatenated * into a single string separated by whitespace. * * @param i The index of the attribute in the list (starting at 0). * @return The attribute value as a string, or * null if the index is out of range. * @see #getLength * @see #getValue(java.lang.String) */ public abstract String getValue (int i); //////////////////////////////////////////////////////////////////// // Lookup methods. //////////////////////////////////////////////////////////////////// /** * Return the type of an attribute in the list (by name). * *
The return value is the same as the return value for * getType(int). * *
If the attribute name has a namespace prefix in the document, * the application must include the prefix here. * * @param name The name of the attribute. * @return The attribute type as a string, or null if no * such attribute exists. * @see #getType(int) */ public abstract String getType (String name); /** * Return the value of an attribute in the list (by name). * *
The return value is the same as the return value for * getValue(int). * *
If the attribute name has a namespace prefix in the document, * the application must include the prefix here. * * @param name the name of the attribute to return * @return The attribute value as a string, or null if * no such attribute exists. * @see #getValue(int) */ public abstract String getValue (String name); } // end of AttributeList.java