Package org.biojava.utils.stax

Class DoubleElementHandlerBase

java.lang.Object

org.biojava.utils.stax.StAXContentHandlerBase

org.biojava.utils.stax.DoubleElementHandlerBase

All Implemented Interfaces:

StAXContentHandler

public abstract class DoubleElementHandlerBase
extends StAXContentHandlerBase

StAX handler for any element which just contains a string representation of a double.

This calss collects the string data, and when it is complete, passes it to the (abstract) setDoubleValue method. Typical use of this class is as a base for a small (often anonymous) class which takes the double value and stores it in some variable.

Since:

1.2

Author:

Matthew Pocock, Greg Cox

Constructor Summary

Constructors

Constructor	Description
DoubleElementHandlerBase()

Method Summary

Modifier and Type	Method	Description
void	characters(char[] ch, int start, int end)	Signal a span of character data in the XML input.
void	endElement(String nsURI, String localName, String qName, StAXContentHandler handler)
protected abstract void	setDoubleValue(double val)	Override this method to do something useful with the double we collect.
void	startElement(String nsURI, String localName, String qName, Attributes attrs, DelegationManager dm)

Methods inherited from class org.biojava.utils.stax.StAXContentHandlerBase

endPrefixMapping, endTree, ignorableWhitespace, processingInstruction, setDocumentLocator, skippedEntity, startPrefixMapping, startTree

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DoubleElementHandlerBase

public DoubleElementHandlerBase()

Method Detail

startElement

public void startElement(String nsURI,
                         String localName,
                         String qName,
                         Attributes attrs,
                         DelegationManager dm)
                  throws SAXException

Specified by:

startElement in interface StAXContentHandler

Overrides:

startElement in class StAXContentHandlerBase

Throws:

SAXException

endElement

public void endElement(String nsURI,
                       String localName,
                       String qName,
                       StAXContentHandler handler)
                throws SAXException

Specified by:

endElement in interface StAXContentHandler

Overrides:

endElement in class StAXContentHandlerBase

Throws:

SAXException

characters

public void characters(char[] ch,
                       int start,
                       int end)
                throws SAXException

Description copied from class: StAXContentHandlerBase

Signal a span of character data in the XML input.

Specified by:

characters in interface StAXContentHandler

Overrides:

characters in class StAXContentHandlerBase

Parameters:

ch - an array of characters

start - index of the first significant character for this event.

end - number of characters significant to this event.

Throws:

SAXException

setDoubleValue

protected abstract void setDoubleValue(double val)
                                throws SAXException

Override this method to do something useful with the double we collect.

This method will be invoked by endElement with the fully parsed double.

Parameters:

val - the fully parsed double

Throws:

SAXException - if for any reason the double is not palatable