AttributeListImplpublic class AttributeListImpl extends Object implements AttributeListDefault implementation for AttributeList.
This module, both source code and documentation, is in the
Public Domain, and comes with NO WARRANTY.
See http://www.saxproject.org
for further information.
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org.xml.sax.AttributeList AttributeList} interface, and has been
replaced by the new SAX2 {@link org.xml.sax.helpers.AttributesImpl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.
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:
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);
[...]
}
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. |
| Fields Summary |
|---|
| Vector | names | | Vector | types | | Vector | values |
| Constructors Summary |
|---|
public AttributeListImpl()Create an empty attribute list.
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.
| public AttributeListImpl(AttributeList atts)Construct a persistent copy of an existing attribute list.
This constructor is most useful for application writers,
who will use it to create a persistent copy of an existing
attribute list.
setAttributeList(atts);
|
| Methods Summary |
|---|
| public void | addAttribute(java.lang.String name, java.lang.String type, java.lang.String value)Add an attribute to an attribute list.
This method is provided for SAX parser writers, to allow them
to build up an attribute list incrementally before delivering
it to the application.
names.addElement(name);
types.addElement(type);
values.addElement(value);
| | public void | clear()Clear the attribute list.
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.
names.removeAllElements();
types.removeAllElements();
values.removeAllElements();
| | public int | getLength()Return the number of attributes in the list.
return names.size();
| | public java.lang.String | getName(int i)Get the name of an attribute (by position).
if (i < 0) {
return null;
}
try {
return (String)names.elementAt(i);
} catch (ArrayIndexOutOfBoundsException e) {
return null;
}
| | public java.lang.String | getType(java.lang.String name)Get the type of an attribute (by name).
return getType(names.indexOf(name));
| | public java.lang.String | getType(int i)Get the type of an attribute (by position).
if (i < 0) {
return null;
}
try {
return (String)types.elementAt(i);
} catch (ArrayIndexOutOfBoundsException e) {
return null;
}
| | public java.lang.String | getValue(int i)Get the value of an attribute (by position).
if (i < 0) {
return null;
}
try {
return (String)values.elementAt(i);
} catch (ArrayIndexOutOfBoundsException e) {
return null;
}
| | public java.lang.String | getValue(java.lang.String name)Get the value of an attribute (by name).
return getValue(names.indexOf(name));
| | public void | removeAttribute(java.lang.String name)Remove an attribute from the list.
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.
If the requested attribute is not in the list, this is
a no-op.
int i = names.indexOf(name);
if (i >= 0) {
names.removeElementAt(i);
types.removeElementAt(i);
values.removeElementAt(i);
}
| | public void | setAttributeList(org.xml.sax.AttributeList atts)Set the attribute list, discarding previous contents.
This method allows an application writer to reuse an
attribute list easily.
int count = atts.getLength();
clear();
for (int i = 0; i < count; i++) {
addAttribute(atts.getName(i), atts.getType(i), atts.getValue(i));
}
|
|
