public class DefaultServiceSelector extends java.lang.Object implements ServiceSelector
Constructor and Description |
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DefaultServiceSelector()
Create a DefaultServiceSelector with a default empty role.
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DefaultServiceSelector(java.lang.String role)
Create a DefaultServiceSelector with a role for debug purposes.
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Modifier and Type | Method and Description |
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protected void |
checkWriteable()
Checks if this service selector is writeable.
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protected java.util.Map |
getObjectMap()
Helper method for subclasses to retrieve object map.
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boolean |
isSelectable(java.lang.Object hint)
Returns whether a Object exists or not
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void |
makeReadOnly()
Makes this service selector read-only.
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void |
put(java.lang.Object hint,
java.lang.Object object)
Populate the ServiceSelector.
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void |
release(java.lang.Object object)
Release object.
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java.lang.Object |
select(java.lang.Object hint)
Select the desired object.
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public DefaultServiceSelector()
public DefaultServiceSelector(java.lang.String role)
role
- The role for this selector.java.lang.NullPointerException
- if the role is null.public java.lang.Object select(java.lang.Object hint) throws ServiceException
select
in interface ServiceSelector
hint
- the hint to retrieve ObjectServiceException
- if an error occurspublic boolean isSelectable(java.lang.Object hint)
isSelectable
in interface ServiceSelector
hint
- the hint to retrieve Objecttrue
if the Object existspublic void release(java.lang.Object object)
release
in interface ServiceSelector
object
- the Object
to releasepublic void put(java.lang.Object hint, java.lang.Object object)
hint
- the hint to be used to retrieve the Object laterobject
- the Object to holdprotected final java.util.Map getObjectMap()
public void makeReadOnly()
protected final void checkWriteable() throws java.lang.IllegalStateException
java.lang.IllegalStateException
- if this service selector is read-only