public class DefaultServiceManager extends java.lang.Object implements ServiceManager
ServiceManager
. Allow ineritance
and extension so you can generate a tree of ServiceManager
each defining
Object scope.Constructor and Description |
---|
DefaultServiceManager()
Construct
ServiceManager with no parent. |
DefaultServiceManager(ServiceManager parent)
Construct
ServiceManager with specified parent. |
Modifier and Type | Method and Description |
---|---|
protected void |
checkWriteable()
Checks if this
ServiceManager is writeable. |
protected java.util.Map |
getObjectMap()
Helper method for subclasses to retrieve object map.
|
protected ServiceManager |
getParent()
Helper method for subclasses to retrieve parent.
|
boolean |
hasService(java.lang.String key)
Check to see if a
Object exists for a key. |
java.lang.Object |
lookup(java.lang.String key)
Retrieve
Object by key from ServiceManager . |
void |
makeReadOnly()
Makes this
ServiceManager read-only. |
void |
put(java.lang.String key,
java.lang.Object object)
Place
Object into ServiceManager . |
void |
release(java.lang.Object object)
Release the
Object . |
java.lang.String |
toString()
Build a human readable representation of this
ServiceManager . |
public DefaultServiceManager()
ServiceManager
with no parent.public DefaultServiceManager(ServiceManager parent)
ServiceManager
with specified parent.parent
- this ServiceManager
's parentpublic java.lang.Object lookup(java.lang.String key) throws ServiceException
Object
by key from ServiceManager
.lookup
in interface ServiceManager
key
- the keyObject
ServiceException
- if an error occurspublic boolean hasService(java.lang.String key)
Object
exists for a key.hasService
in interface ServiceManager
key
- a string identifying the key to check.public void put(java.lang.String key, java.lang.Object object)
Object
into ServiceManager
.key
- the object's keyobject
- an Object
valuepublic java.lang.String toString()
ServiceManager
.toString
in class java.lang.Object
ServiceManager
protected final ServiceManager getParent()
ServiceManager
protected final java.util.Map getObjectMap()
public void makeReadOnly()
ServiceManager
read-only.protected final void checkWriteable() throws java.lang.IllegalStateException
ServiceManager
is writeable.java.lang.IllegalStateException
- if this ServiceManager
is
read-onlypublic void release(java.lang.Object object)
Object
.release
in interface ServiceManager
object
- The Object
to release.