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java.lang.Objectorg.eclipse.osgi.framework.internal.core.StartLevelImpl
public class StartLevelImpl
StartLevel service for the OSGi specification. Framework service which allows management of framework and bundle startlevels. If present, there will only be a single instance of this service registered in the framework.
Field Summary | |
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protected StartLevelManager |
manager
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protected Bundle |
owner
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Constructor Summary | |
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protected |
StartLevelImpl(Bundle owner,
Framework framework)
This constructor is called by the StartLevel factory |
Method Summary | |
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int |
getBundleStartLevel(Bundle bundle)
Return the assigned start level value for the specified Bundle. |
int |
getInitialBundleStartLevel()
Return the initial start level value that is assigned to a Bundle when it is first installed. |
int |
getStartLevel()
Return the active start level value of the Framework. |
boolean |
isBundleActivationPolicyUsed(Bundle bundle)
Returns whether the specified bundle's autostart setting indicates that the activation policy declared in the bundle's manifest must be used. |
boolean |
isBundlePersistentlyStarted(Bundle bundle)
Return the persistent state of the specified bundle. |
boolean |
isSettingStartLevel()
|
void |
setBundleStartLevel(Bundle bundle,
int newSL)
Assign a start level value to the specified Bundle. |
void |
setInitialBundleStartLevel(int startlevel)
Set the initial start level value that is assigned to a Bundle when it is first installed. |
void |
setStartLevel(int newSL)
Modify the active start level of the Framework. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected StartLevelManager manager
protected Bundle owner
Constructor Detail |
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protected StartLevelImpl(Bundle owner, Framework framework)
Method Detail |
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public int getInitialBundleStartLevel()
getInitialBundleStartLevel
in interface StartLevel
setInitialBundleStartLevel(int)
public void setInitialBundleStartLevel(int startlevel)
The initial bundle start level will be set to the specified start level. The initial bundle start level value will be persistently recorded by the Framework.
When a Bundle is installed via BundleContext.installBundle, it is assigned the initial bundle start level value.
The default initial bundle start level value is 1 unless this method has been called to assign a different initial bundle start level value.
This method does not change the start level values of installed bundles.
setInitialBundleStartLevel
in interface StartLevel
startlevel
- The initial start level for newly installed bundles.
java.lang.IllegalArgumentException
- If the specified start level is less than or
equal to zero.
java.lang.SecurityException
- if the caller does not have the
AdminPermission and the Java runtime environment supports
permissions.public int getStartLevel()
getStartLevel
in interface StartLevel
public void setStartLevel(int newSL)
The Framework will move to the requested start level. This method will return immediately to the caller and the start level change will occur asynchronously on another thread.
If the specified start level is higher than the active start level, the Framework will continue to increase the start level until the Framework has reached the specified start level, starting bundles at each start level which are persistently marked to be started as described in the Bundle.start method. At each intermediate start level value on the way to and including the target start level, the framework must:
If the specified start level is lower than the active start level, the Framework will continue to decrease the start level until the Framework has reached the specified start level stopping bundles at each start level as described in the Bundle.stop method except that their persistently recorded state indicates that they must be restarted in the future. At each intermediate start level value on the way to and including the specified start level, the framework must:
If the specified start level is equal to the active start level, then no bundles are started or stopped, however, the Framework must broadcast a Framework event of type FrameworkEvent.STARTLEVEL_CHANGED to announce it has finished moving to the specified start level. This event may arrive before the this method return.
setStartLevel
in interface StartLevel
newSL
- The requested start level for the Framework.
java.lang.IllegalArgumentException
- If the specified start level is less than or
equal to zero.
java.lang.SecurityException
- If the caller does not have the
AdminPermission and the Java runtime environment supports
permissions.public boolean isBundlePersistentlyStarted(Bundle bundle)
This method returns the persistent state of a bundle. The persistent state of a bundle indicates whether a bundle is persistently marked to be started when it's start level is reached.
isBundlePersistentlyStarted
in interface StartLevel
bundle
- The bundle whose autostart setting is to be examined.
java.lang.IllegalArgumentException
- If the specified bundle has been uninstalled.Bundle.START_TRANSIENT
public boolean isBundleActivationPolicyUsed(Bundle bundle)
StartLevel
The autostart setting of a bundle indicates whether the bundle's declared activation policy is to be used when the bundle is started.
isBundleActivationPolicyUsed
in interface StartLevel
bundle
- The bundle whose autostart setting is to be examined.
true
if the bundle's autostart setting indicates
the activation policy declared in the manifest must be used.
false
if the bundle must be eagerly activated.Bundle.START_ACTIVATION_POLICY
public int getBundleStartLevel(Bundle bundle)
getBundleStartLevel
in interface StartLevel
bundle
- The target bundle.
java.lang.IllegalArgumentException
- If the specified bundle has been uninstalled.public void setBundleStartLevel(Bundle bundle, int newSL)
The specified bundle will be assigned the specified start level. The start level value assigned to the bundle will be persistently recorded by the Framework. If the new start level for the bundle is lower than or equal to the active start level of the Framework, the Framework will start the specified bundle as described in the Bundle.start method if the bundle is persistently marked to be started. The actual starting of this bundle must occur asynchronously. If the new start level for the bundle is higher than the active start level of the Framework, the Framework will stop the specified bundle as described in the Bundle.stop method except that the persistently recorded state for the bundle indicates that the bundle must be restarted in the future. The actual stopping of this bundle must occur asynchronously.
setBundleStartLevel
in interface StartLevel
bundle
- The target bundle.newSL
- The new start level for the specified Bundle.
java.lang.IllegalArgumentException
- If the specified bundle has been uninstalled or
if the specified start level is less than or equal to zero, or the specified bundle is
the system bundle.
java.lang.SecurityException
- if the caller does not have the
AdminPermission and the Java runtime environment supports
permissions.public boolean isSettingStartLevel()
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