org.apache.felix.dm

Interface ComponentDeclaration

public interface ComponentDeclaration

Describes a component. Component declarations form descriptions of components that are managed by the dependency manager. They can be used to query their state for monitoring tools. The dependency manager shell command is an example of such a tool.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String[]	STATE_NAMES Names for the states of this component.
static int	STATE_REGISTERED State constant for a registered component.
static int	STATE_UNREGISTERED State constant for an unregistered component.

Method Summary

Modifier and Type	Method and Description
BundleContext	getBundleContext() Returns the bundle context associated with this component.
java.util.Map<java.lang.String,java.lang.Long>	getCallbacksTime() Returns the execution time in nanos for each component callbacks (init/start/stop/destroy)
java.lang.String	getClassName() Returns the class name of the Component implementation.
ComponentDependencyDeclaration[]	getComponentDependencies() Returns a list of dependencies associated with this component.
DependencyManager	getDependencyManager() Returns the dependency manager for this component
long	getId() Returns the instance id of this component.
java.lang.String	getName() Returns the description of this component (the classname or the provided service(s))
<K,V> java.util.Dictionary<K,V>	getServiceProperties() Returns the service properties, or null
java.lang.String[]	getServices() Returns the service optionally provided by this component, or null
int	getState() Returns the state of this component.

Field Detail

STATE_NAMES

static final java.lang.String[] STATE_NAMES

Names for the states of this component.

STATE_UNREGISTERED

static final int STATE_UNREGISTERED

State constant for an unregistered component.

See Also:

Constant Field Values

STATE_REGISTERED

static final int STATE_REGISTERED

State constant for a registered component.

See Also:

Constant Field Values

Method Detail

getComponentDependencies

ComponentDependencyDeclaration[] getComponentDependencies()

Returns a list of dependencies associated with this component.

getName

java.lang.String getName()

Returns the description of this component (the classname or the provided service(s))

getClassName

java.lang.String getClassName()

Returns the class name of the Component implementation.

getServices

java.lang.String[] getServices()

Returns the service optionally provided by this component, or null

getServiceProperties

<K,V> java.util.Dictionary<K,V> getServiceProperties()

Returns the service properties, or null

getState

int getState()

Returns the state of this component.

getId

long getId()

Returns the instance id of this component.

getBundleContext

BundleContext getBundleContext()

Returns the bundle context associated with this component.

getDependencyManager

DependencyManager getDependencyManager()

Returns the dependency manager for this component

getCallbacksTime

java.util.Map<java.lang.String,java.lang.Long> getCallbacksTime()

Returns the execution time in nanos for each component callbacks (init/start/stop/destroy)