Package org.logicalcobwebs.proxool.configuration

Class XMLConfigurator

  • All Implemented Interfaces:
    org.xml.sax.ContentHandler, org.xml.sax.DTDHandler, org.xml.sax.EntityResolver, org.xml.sax.ErrorHandler
    public class XMLConfigurator
extends org.xml.sax.helpers.DefaultHandler

    A SAX 2 ContentHandler that can configure Proxool from an XML source.

    This is just a ContentHandler, so you must associate it with a SAX parser for it to actually do anything. If you have JAXP available JAXPConfigurator will do this for you.

    Properties that you pass on to the delegate driver have to be treated specially. They must be contained within a <driver-properties> element.

    See the Proxool properties for documentation on the available configuration properties.

    Example configuration: 
     <proxool>
     <alias>apple</alias>
     <driver-url>jdbc:hsqldb:.</driver-url>
     <driver-class>org.hsqldb.jdbcDriver</driver-class>
     <driver-properties>
         <property name="user" value="abc" />
         <property name="password" value="def" />
     </driver-properties>
     <house-keeping-sleep-time>40000</house-keeping-sleep-time>
     <house-keeping-test-sql>select CURRENT_DATE</house-keeping-test-sql>
     <maximum-connection-count>10</maximum-connection-count>
     <minimum-connection-count>3</minimum-connection-count>
     <maximum-connection-lifetime>18000000</maximum-connection-lifetime> <!-- 5 hours -->
     <simultaneous-build-throttle>5</simultaneous-build-throttle>
     <recently-started-threshold>40000</recently-started-threshold>
     <overload-without-refusal-lifetime>50000</overload-without-refusal-lifetime>
     <maximum-active-time>60000</maximum-active-time>
     <verbose>true</verbose>
     <trace>true</trace>
     <fatal-sql-exception>ORA-1234</fatal-sql-exception>
     <prototype-count>2</prototype-count>
 </proxool>
    When the parser reaches the end of the <proxool> element the pool is automatically registered. You can contain the <proxool> element in any other elements as you wish. And the <proxool> element can occur as many times as you wish. This allows you to use an XML file that configures your whole application as the source. This configurator will ignore everything apart from the elements contained within the <proxool> element.

    Validation
    A couple of additional steps are required if you want your SAX parser to validate your Proxool xml confguration:

    This class is not thread safe.

    Version:
    $Revision: 1.18 $, $Date: 2006/01/18 14:39:58 $
    Author:
    billhorsman, $Author: billhorsman $ (current maintainer)

    • Constructor Summary

      Constructors 
      Constructor Description
      XMLConfigurator()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void characters​(char[] chars, int start, int length)  
      void endElement​(java.lang.String uri, java.lang.String lname, java.lang.String qname)  
      void error​(org.xml.sax.SAXParseException e)  
      void fatalError​(org.xml.sax.SAXParseException e)  
      void startElement​(java.lang.String uri, java.lang.String lname, java.lang.String qname, org.xml.sax.Attributes attributes)  
      void warning​(org.xml.sax.SAXParseException e)  

      • Methods inherited from class org.xml.sax.helpers.DefaultHandler

        endDocument, endPrefixMapping, ignorableWhitespace, notationDecl, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • XMLConfigurator

        public XMLConfigurator()

    • Method Detail

      • startElement

        public void startElement​(java.lang.String uri,
                         java.lang.String lname,
                         java.lang.String qname,
                         org.xml.sax.Attributes attributes)
                  throws org.xml.sax.SAXException
        Specified by:
        startElement in interface org.xml.sax.ContentHandler
        Overrides:
        startElement in class org.xml.sax.helpers.DefaultHandler
        Throws:
        org.xml.sax.SAXException
        See Also:
        ContentHandler.startElement(java.lang.String, java.lang.String, java.lang.String, org.xml.sax.Attributes)

      • characters

        public void characters​(char[] chars,
                       int start,
                       int length)
                throws org.xml.sax.SAXException
        Specified by:
        characters in interface org.xml.sax.ContentHandler
        Overrides:
        characters in class org.xml.sax.helpers.DefaultHandler
        Throws:
        org.xml.sax.SAXException
        See Also:
        ContentHandler.characters(char[], int, int)

      • endElement

        public void endElement​(java.lang.String uri,
                       java.lang.String lname,
                       java.lang.String qname)
                throws org.xml.sax.SAXException
        Specified by:
        endElement in interface org.xml.sax.ContentHandler
        Overrides:
        endElement in class org.xml.sax.helpers.DefaultHandler
        Throws:
        org.xml.sax.SAXException
        See Also:
        ContentHandler.endElement(java.lang.String, java.lang.String, java.lang.String)

      • warning

        public void warning​(org.xml.sax.SAXParseException e)
             throws org.xml.sax.SAXException
        Specified by:
        warning in interface org.xml.sax.ErrorHandler
        Overrides:
        warning in class org.xml.sax.helpers.DefaultHandler
        Throws:
        org.xml.sax.SAXException
        See Also:
        ErrorHandler.warning(SAXParseException)

      • error

        public void error​(org.xml.sax.SAXParseException e)
           throws org.xml.sax.SAXException
        Specified by:
        error in interface org.xml.sax.ErrorHandler
        Overrides:
        error in class org.xml.sax.helpers.DefaultHandler
        Throws:
        org.xml.sax.SAXException
        See Also:
        ErrorHandler.error(SAXParseException)

      • fatalError

        public void fatalError​(org.xml.sax.SAXParseException e)
                throws org.xml.sax.SAXException
        Specified by:
        fatalError in interface org.xml.sax.ErrorHandler
        Overrides:
        fatalError in class org.xml.sax.helpers.DefaultHandler
        Throws:
        org.xml.sax.SAXException
        See Also:
        ErrorHandler.fatalError(SAXParseException)