org.gcube.common.ghn.service.lifecycle
Interface Lifecycle

All Known Implementing Classes:

DefaultLifecycle

public interface Lifecycle

The lifecycle of an application managed as a gCube service.

Author:

Fabio Simeoni

Field Summary

static String	failed The event qualifier that correspond to the failed state of the service lifecycle.
static String	ready The event qualifier that correspond to the ready state of the service lifecycle.
static String	started The event qualifier that correspond to the started state of the service lifecycle.
static String	stopped The event qualifier that correspond to the stopped state of the service lifecycle.

Method Summary

void	moveTo(State state) Transition this lifecycle to a given state.
State	previous() Returns the state from which this lifecycle transitioned to its current state.
State	state() Returns the current state of this lifecycle.
void	tryMoveTo(State state) Attempts to transition this lifecycle to a given state, but does not fail if the transition is illegal for this lifecycle.

Field Detail

started

static final String started

The event qualifier that correspond to the started state of the service lifecycle.

See Also:

Constant Field Values

ready

static final String ready

The event qualifier that correspond to the ready state of the service lifecycle.

See Also:

Constant Field Values

stopped

static final String stopped

The event qualifier that correspond to the stopped state of the service lifecycle.

See Also:

Constant Field Values

failed

static final String failed

The event qualifier that correspond to the failed state of the service lifecycle.

See Also:

Constant Field Values

Method Detail

previous

State previous()

Returns the state from which this lifecycle transitioned to its current state.

Returns:

the previous state

state

State state()

Returns the current state of this lifecycle.

Returns:

the current state.

moveTo

void moveTo(State state)

Transition this lifecycle to a given state.

Parameters:

state - the state

Throws:

IllegalStateException - if the transition is illegal for this lifecycle

tryMoveTo

void tryMoveTo(State state)

Attempts to transition this lifecycle to a given state, but does not fail if the transition is illegal for this lifecycle.

Parameters:

state - the state