Uses of Class
org.apache.ambari.server.stack.upgrade.Task

Packages that use Task

Package	Description
org.apache.ambari.server.stack.upgrade
org.apache.ambari.server.stack.upgrade.orchestrate

Uses of Task in org.apache.ambari.server.stack.upgrade

Subclasses of Task in org.apache.ambari.server.stack.upgrade

Modifier and Type	Class and Description
class	AddComponentTask The AddComponentTask is used for adding components during an upgrade.
class	ConfigureFunction Used to represent Configuring of a component.
class	ConfigureTask The ConfigureTask represents a configuration change.
class	CreateAndConfigureTask The CreateAndConfigureTask represents a two step change where the create is for creating a config type if it does not exist followed by the configuration change.
class	ExecuteTask Used to represent an execution that should occur on an agent.
class	ManualTask Identifies that an upgrade step that requires confirmation before continuing.
class	RegenerateKeytabsTask The RegenerateKeytabsTask is used for injection Kerberos tasks into an upgrade which will regenerate keytabs.
class	RestartTask Used to represent a restart of a component.
class	ServerActionTask Identifies that an upgrade step that requires confirmation before continuing.
class	ServerSideActionTask
class	ServiceCheckTask Used to represent a restart of a component.
class	StartTask Used to represent a start of a component.
class	StopTask Used to represent a stop of a component.

Fields in org.apache.ambari.server.stack.upgrade declared as Task

Modifier and Type	Field and Description
Task	ExecuteStage.task

Fields in org.apache.ambari.server.stack.upgrade with type parameters of type Task

Modifier and Type	Field and Description
List<Task>	UpgradePack.ProcessingComponent.postDowngradeTasks
List<Task>	UpgradePack.ProcessingComponent.postTasks
List<Task>	UpgradePack.ProcessingComponent.preDowngradeTasks
List<Task>	UpgradePack.ProcessingComponent.preTasks
List<Task>	UpgradePack.ProcessingComponent.tasks

Method parameters in org.apache.ambari.server.stack.upgrade with type arguments of type Task

Modifier and Type	Method and Description
boolean	UpgradePack.anyGroupTaskMatch(Predicate<Task> taskPredicate)

Uses of Task in org.apache.ambari.server.stack.upgrade.orchestrate

Methods in org.apache.ambari.server.stack.upgrade.orchestrate that return Task

Modifier and Type	Method and Description
protected Task	StageWrapperBuilder.resolveTask(UpgradeContext context, UpgradePack.ProcessingComponent pc) The upgrade packs are written such that there is one and only one upgrade element for a component, all other directives go in (pre|post)-(upgrade|downgrade) elements.

Methods in org.apache.ambari.server.stack.upgrade.orchestrate that return types with arguments of type Task

Modifier and Type	Method and Description
List<Task>	TaskWrapper.getTasks()
protected List<Task>	StageWrapperBuilder.resolveTasks(UpgradeContext context, boolean preTasks, UpgradePack.ProcessingComponent pc) Determine the list of pre- or post-tasks given these rules When performing an upgrade, only use upgrade tasks When performing a downgrade, use the downgrade tasks if they are defined When performing a downgrade, but no downgrade tasks exist, reuse the upgrade tasks

Method parameters in org.apache.ambari.server.stack.upgrade.orchestrate with type arguments of type Task

Modifier and Type	Method and Description
static List<TaskWrapper>	TaskWrapperBuilder.getTaskList(String service, String component, HostsType hostsType, List<Task> tasks, Map<String,String> params) Creates a collection of task wrappers based on the set of hosts they are allowed to run on by analyzing the "hosts" attribute of any ExecuteTask objects.

Constructors in org.apache.ambari.server.stack.upgrade.orchestrate with parameters of type Task

Constructor and Description
TaskWrapper(String s, String c, Set<String> hosts, Map<String,String> params, Task... tasks)
TaskWrapper(String s, String c, Set<String> hosts, Task task)

Constructor parameters in org.apache.ambari.server.stack.upgrade.orchestrate with type arguments of type Task

Constructor and Description
TaskWrapper(String s, String c, Set<String> hosts, Map<String,String> params, List<Task> tasks)