- java.lang.Object
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- java.lang.management.LockInfo
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- Direct Known Subclasses:
MonitorInfo
public class LockInfo extends Object
This class represents information about locked objects.- Since:
- 1.6
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static LockInfo
from(CompositeData compositeData)
Returns aLockInfo
object represented by the givenCompositeData
.String
getClassName()
Returns the name of the lock object's class in fully qualified form (i.e.int
getIdentityHashCode()
Returns the value of the associated lock object's identity hash codeString
toString()
Provides callers with a string value that represents the associated lock.
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Constructor Detail
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LockInfo
public LockInfo(String className, int identityHashCode)
Creates a newLockInfo
instance.- Parameters:
className
- the name (including the package prefix) of the associated lock object's classidentityHashCode
- the value of the associated lock object's identity hash code. This amounts to the result of callingSystem.identityHashCode(Object)
with the lock object as the sole argument.- Throws:
NullPointerException
- ifclassName
isnull
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Method Detail
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getClassName
public String getClassName()
Returns the name of the lock object's class in fully qualified form (i.e. including the package prefix).- Returns:
- the associated lock object's class name
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getIdentityHashCode
public int getIdentityHashCode()
Returns the value of the associated lock object's identity hash code- Returns:
- the identity hash code of the lock object
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from
public static LockInfo from(CompositeData compositeData)
Returns aLockInfo
object represented by the givenCompositeData
. The givenCompositeData
must contain the following attributes:The attributes and the types the given CompositeData contains Attribute Name Type className java.lang.String
identityHashCode java.lang.Integer
- Parameters:
compositeData
-CompositeData
representing aLockInfo
- Returns:
- a
LockInfo
object represented bycompositeData
ifcompositeData
is notnull
;null
otherwise. - Throws:
IllegalArgumentException
- ifcompositeData
does not represent aLockInfo
with the attributes described above.- Since:
- 1.8
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toString
public String toString()
Provides callers with a string value that represents the associated lock. The string will hold both the name of the lock object's class and it's identity hash code expressed as an unsigned hexadecimal. i.e.
getClassName()
+ @ + Integer.toHexString(getIdentityHashCode()
)
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