Class GuardedObject
- java.lang.Object
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- java.security.GuardedObject
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- All Implemented Interfaces:
- Serializable
public class GuardedObject extends Object implements Serializable
A GuardedObject is an object that is used to protect access to another object.A GuardedObject encapsulates a target object and a Guard object, such that access to the target object is possible only if the Guard object allows it. Once an object is encapsulated by a GuardedObject, access to that object is controlled by the
getObjectmethod, which invokes thecheckGuardmethod on the Guard object that is guarding access. If access is not allowed, an exception is thrown.- See Also:
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Guard,Permission, Serialized Form
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Constructor Summary
Constructors Constructor and Description GuardedObject(Object object, Guard guard)Constructs a GuardedObject using the specified object and guard.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method and Description ObjectgetObject()Retrieves the guarded object, or throws an exception if access to the guarded object is denied by the guard.
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Constructor Detail
GuardedObject
public GuardedObject(Object object, Guard guard)
Constructs a GuardedObject using the specified object and guard. If the Guard object is null, then no restrictions will be placed on who can access the object.- Parameters:
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object- the object to be guarded. -
guard- the Guard object that guards access to the object.
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Method Detail
getObject
public Object getObject() throws SecurityException
Retrieves the guarded object, or throws an exception if access to the guarded object is denied by the guard.- Returns:
- the guarded object.
- Throws:
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SecurityException- if access to the guarded object is denied.
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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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