ApplicationBuilder (Brooklyn)

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brooklyn.entity.basic
[Java] Class ApplicationBuilder

java.lang.Object
  brooklyn.entity.basic.ApplicationBuilder

@Beta
public abstract class ApplicationBuilder

Experimental mechanism for defining/building applications. In future releases, this API will change. Its concepts will most likely be merged with a TOSCA implementation and with EntitySpec. For building an application. Users can sub-class and override doBuild(), putting the logic for creating and wiring together entities in there. The builder is mutable; a given instance should be used to build only a single application. Once manage() has been called, the application will be built and no additional configuration should be performed through this builder. Example (simplified) code for sub-classing is:

 app = new ApplicationBuilder() {
       //@Override
       public void doBuild() {
           MySqlNode db = addChild(EntitySpec.create(MySqlNode.class)));
           JBoss7Server as = addChild(EntitySpec.create(JBoss7Server.class)
                   .configure(HTTP_PORT, "8080+")
                   .configure(javaSysProp("brooklyn.example.db.url"), attributeWhenReady(db, MySqlNode.MYSQL_URL));
       
   }.manage();
 }

Authors:: aled

Field Summary
`protected java.util.concurrent.atomic.AtomicBoolean`	`inManage`
`protected boolean`	`managed`

Constructor Summary
`ApplicationBuilder()`
`ApplicationBuilder(EntitySpec appSpec)`

Method Summary
`protected java.lang.Object`	`addChild(java.lang.Object entity)` Adds the given entity as a child of the application being built.
`protected java.lang.Object`	`addChild(EntitySpec spec)` Adds the given entity as a child of the application being built.
`protected java.lang.Object`	`addChild(java.util.Map config, java.lang.Class type)`
`ApplicationBuilder`	`appDisplayName(java.lang.String val)`
`protected void`	`checkDuringManage()`
`protected void`	`checkNotManaged()`
`protected void`	`checkPreManage()`
`ApplicationBuilder`	`configure(java.util.Map config)` Configures the application instance.
`protected java.lang.Object`	`createChild(EntitySpec spec)` @deprecated since 0.5.0-rc.1 (added in 0.5.0-M2); use addChild(EntitySpec), for consistency with AbstractEntity#addChild(EntitySpec)#addChild(EntitySpec).
`protected java.lang.Object`	`createChild(java.util.Map config, java.lang.Class type)` @deprecated since 0.5.0-rc.1 (added in 0.5.0-M2); use addChild(Map, Class)
`protected java.lang.Object`	`createEntity(EntitySpec spec)`
`protected void`	`doBuild()` For overriding, to create and wire together entities.
`protected StartableApplication`	`getApp()`
`protected ManagementContext`	`getManagementContext()`
`java.lang.Class`	`getType()` Returns the type of the application being built.
`StartableApplication`	`manage()` Creates a new ManagementContext, and then builds and manages the application.
`StartableApplication`	`manage(ManagementContext managementContext)` Builds and manages the application, calling the user's doBuild() method.
`static EntitySpec`	`newAppSpec(java.lang.Class type)` @deprecated since 0.5.0-rc.1 (added in 0.5.0-M2)
`static java.lang.Object`	`newManagedApp(java.lang.Class type)`
`static java.lang.Object`	`newManagedApp(EntitySpec spec)`
`static java.lang.Object`	`newManagedApp(java.lang.Class type, ManagementContext managementContext)`
`static java.lang.Object`	`newManagedApp(EntitySpec spec, ManagementContext managementContext)`

Methods inherited from class java.lang.Object
java.lang.Object#wait(), java.lang.Object#wait(long), java.lang.Object#wait(long, int), java.lang.Object#equals(java.lang.Object), java.lang.Object#toString(), java.lang.Object#hashCode(), java.lang.Object#getClass(), java.lang.Object#notify(), java.lang.Object#notifyAll()

Field Detail

inManage

protected final java.util.concurrent.atomic.AtomicBoolean inManage

managed

protected boolean managed

Constructor Detail