Dashboard > GridGain User Guide > Table Of Contents > Developers Guide > Topology SPI > GridAttributesTopologySpi > Information > Page Comparison
GridGain User Guide
GridAttributesTopologySpi
Version 1 by ghost
on Nov 19, 2007 04:17.

 
compared with
Current by link
on Jul 08, 2008 03:57.
(show comment)
 
Key
These lines were removed. This word was removed.
These lines were added. This word was added.

View page history


There are 1 changes. View first change.

 * [#Package]
 * [#Description]
 * [#Configuration]
 * [#Examples]
  
 {javadocnote}
  
 h2. Package
 *org.gridgain.grid.spi.toplogy.basic* ^[Javadoc|org/gridgain/grid/spi/topology/basic/package-summary.html@javadoc]^
  
 h2. Description
  {{GridAttributesTopologySpi}} {javadoc:spi/topology/basic/GridAttributesTopologySpi.html} provides topology SPI implementation based on nodes attributes. This implementation always returns all nodes (local and remote) that have attributes provided in configuration with given values. If no attributes were provided, all nodes, local and remote,
  {{GridAttributesTopologySpi}} {javadoc:spi/topology/basic/GridAttributesTopologySpi.html} provides topology SPI implementation based on [node attributes|GridNode Interface#-GridNodeAttributes]. This implementation always returns all nodes (local and remote) that have attributes provided in configuration with given values. If no attributes were provided, all nodes, local and remote,
 will be included into topology.
  
 h2. Configuration
 The following configuration parameters can be used to configure {{GridAttributesTopologySpi}} {javadoc:spi/topology/basic/GridAttributesTopologySpi.html}
 || Setter Method || Description || Optional || Default ||
 | {{setAttributes(Map<String, Serializable>)}} {javadoc:spi/topology/basic/GridAttributesTopologySpi.html#setAttributes(Map<String, Serializable>)} | Sets attributes that all nodes should have, to be in topology. | Yes | No value |
  
 h2. Examples
 As any GridGain SPI, {{GridAttributesTopologySpi}} {javadoc:spi/topology/basic/GridAttributesTopologySpi.html} can be configured either directly from code or from Spring configuration file. Here is an example of {{GridAttributesTopologySpi}} {javadoc:spi/topology/basic/GridAttributesTopologySpi.html} configuration from code:
 {code}
 GridAttributesTopologySpi topSpi = new GridAttributesTopologySpi();
  
 // Create attributes map.
 Map<String, Serializable> attrs = new HashMap<String, Serializable>(1);
  
 attrs.put("group", "myTask");
  
 // Include nodes that have attribute with name "group" and value "myTask".
 topSpi.setAttributes(attrs);
  
 GridConfigurationAdapter cfg = new GridConfigurationAdapter();
  
 // Override default topology SPI.
 cfg.setTopologySpi(topSpi);
  
 // Start grid.
 GridFactory.start(cfg);
 {code}
  
 or from Spring configuration file
  
 {code:xml}
 <bean id="grid.custom.cfg" class="org.gridgain.grid.GridConfigurationAdapter" singleton="true">
  ...
  <property name="topologySpi">
  <bean class="org.gridgain.grid.spi.topology.attributes.GridAttributesTopologySpi">
  <property name="attributes">
  <map>
  <entry key="group">
  <value>myTask</value>
  </entry>
  </map>
  </property>
  </bean>
  </property>
  ...
 </bean>
 {code}
  
 {spring}
Powered by Atlassian Confluence, the Enterprise Wiki. (Version: 2.2.10 Build:#528 Nov 29, 2006) - Bug/feature request - Contact Administrators