froehlich 01/11/16 04:24:07 Added: docs/phoenix what-is-a-block-listener.html Log: new doc example configuration Revision Changes Path 1.1 jakarta-avalon-site/docs/phoenix/what-is-a-block-listener.html Index: what-is-a-block-listener.html =================================================================== <html> <head> <META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Block Developers Guide</title> </head> <body bgcolor="#ffffff" marginheight="4" marginwidth="4" leftmargin="4" topmargin="4" alink="#023264" vlink="#023264" link="#525D76" text="#000000"> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td align="left" valign="top"><a href="http://jakarta.apache.org/index.html";><img src="images/jakarta-logo.gif" border="0" vspace="0" hspace="0"></a></td><td bgcolor="#ffffff" align="left" valign="top" width="100%"><img src="images/header.gif" align="right" border="0" vspace="0" hspace="0"></td> </tr> <tr> <td colspan="2" height="2" width="100%"> <hr size="1" noshade=""> </td> </tr> </table> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td valign="top" width="1%"></td><td nowrap="1" valign="top" width="14%"> <br> <font face="arial,helvetica,sanserif"> <br> <br> <a href="http://jakarta.apache.org/avalon";><font size="+1" color="#F3510C">Back to Avalon</font></a> <br> <br> <font size="+1" color="#000000">About</font> <br> <font size="-1"> <ul> <li> <a href="index.html"><font size="-1">Overview</font></a> </li> <li> <a href="features.html"><font size="-1">Features</font></a> </li> <li> <a href="http://jakarta.apache.org/builds/jakarta-avalon/release/phoenix";><font size="-1">Download</font></a> </li> <li> <a href="getting-started.html"><font size="-1">Getting Started</font></a> </li> <li> <a href="install.html"><font size="-1">Installation</font></a> </li> <li> <a href="todo.html"><font size="-1">Todo</font></a> </li> <li> <a href="changes.html"><font size="-1">Changes</font></a> </li> <li> <a href="api/index.html"><font size="-1">API Docs</font></a> </li> </ul> </font> <br> <br> <font size="+1" color="#000000">Administrators Guide</font> <br> <font size="-1"> <ul> <li> <a href="administrator-guide.html"><font size="-1">Overview</font></a> </li> </ul> </font> <br> <br> <font size="+1" color="#000000">Deployers Guide</font> <br> <font size="-1"> <ul> <li> <a href="deployers-guide.html"><font size="-1">Overview</font></a> </li> </ul> </font> <br> <br> <font size="+1" color="#000000">Assemblers Guide</font> <br> <font size="-1"> <ul> <li> <a href="assemblers-guide.html"><font size="-1">Overview</font></a> </li> <li> <a href="what-is-a-server-application.html"><font size="-1">What is a Server Application?</font></a> </li> <li> <a href="creating-a-server-application.html"><font size="-1">Creating a Server Application</font></a> </li> <li> <a href="config-xml-specification.html"><font size="-1">config.xml Specification</font></a> </li> <li> <a href="assembly-xml-specification.html"><font size="-1">assembly.xml Specification</font></a> </li> <li> <a href="environment-xml-specification.html"><font size="-1">environment.xml Specification</font></a> </li> </ul> </font> <br> <br> <font size="+1" color="#000000">Block Developers Guide</font> <br> <font size="-1"> <ul> <li> <a href="block-developers-guide.html"><font size="-1">Overview</font></a> </li> <li> <a href="what-is-a-block.html"><font size="-1">What is a Block?</font></a> </li> <li> <a href="what-is-a-block-listener.html"><font size="-1">What is a Block Listener?</font></a> </li> <li> <a href="blockinfo-specification.html"><font size="-1">BlockInfo Specification</font></a> </li> <li> <a href="creating-a-block.html"><font size="-1">Creating a Block</font></a> </li> </ul> </font> <br> <br> <font size="+1" color="#000000">All together</font> <br> <font size="-1"> <ul> <li> <a href="example-configuration.html"><font size="-1">Example configuration</font></a> </li> </ul> </font> <br> <br> </font></td><td align="left" valign="top" width="*"> <title>Block Developers Guide</title> <center> <table width="80%"> <tr> <td bgcolor="#F3DD61"> <br> <center> <b><font face="arial,helvetica,sanserif" color="#000000">Block Developers Guide</font></b> </center> <br> </td> </tr> </table> </center> <br> <font face="arial,helvetica,sanserif" color="#000000"></font> <br> <div align="right"> <table cellspacing="0" cellpadding="2" border="0" width="100%"> <tr> <td bgcolor="#525D76"><font face="arial,helvetica,sanserif" color="#ffffff" size="+1"><b>Introduction</b></font></td> </tr> <tr> <td><font face="arial,helvetica,sanserif" color="#000000"> <br> <p align="justify"> A Phoenix Application consists of Blocks. Blocks can depend on the services of other Blocks. However there is circumstances in which relationships between Blocks other than dependency relationships should exist in an application. </p> <p align="justify"> For example, you may have a Block that is capable of exporting other Blocks as SOAP services. The Blocks that wish to be exported as SOAP services may need to export a service interface that extends SOAPClient. </p> </font></td> </tr> </table> </div> <br> <div align="right"> <table cellspacing="0" cellpadding="2" border="0" width="100%"> <tr> <td bgcolor="#525D76"><font face="arial,helvetica,sanserif" color="#ffffff" size="+1"><b>What is a Block Listener?</b></font></td> </tr> <tr> <td><font face="arial,helvetica,sanserif" color="#000000"> <br> <p align="justify"> A BlockListener is a component that is created before any Blocks are created in an Application. It receives notification after each Block is created and setup for Application. The listener also receives notification when a Block is about to be shutdown. </p> <p align="justify"> The relationship discussed above (between SOAPServer and SOAPClients) could be modelled as dependencies but that would mean that each application would need to modify the SOAPServer so that it depended on a particular number of SOAPClients that was specific to application. A better approach to modelling these relationships would be to use a BlockListener to "wire" together the SOAPClient services in Blocks to the SOAPServer service. As soon as any Block is detected that implements a SOAPClient service it could be registered with the SOAPServer. </p> </font></td> </tr> </table> </div> <br> </td> </tr> </table> <br> <table cellpadding="0" cellspacing="0" border="0" width="100%"> <tr> <td> <hr size="1" noshade=""> </td> </tr> <tr> <td align="center"><font color="#525D76" size="-1" face="arial,helvetica,sanserif"><i> Copyright ©1999-2001 by the Apache Software Foundation. All Rights Reserved. </i></font></td> </tr> </table> </body> </html>
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