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Monitoring and Management Interface for the Java Platform | ||||||||
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java.lang.Objectcom.sun.management.GcInfo
public class GcInfo
Garbage collection information. It contains the following information for one garbage collection as well as GC-specific attributes:
- Start time
- End time
- Duration
- Memory usage before the collection starts
- Memory usage after the collection ends
GcInfo is a CompositeData
The GC-specific attributes can be obtained via the CompositeData
interface.
CompositeData
with attributes as specified in the from
method.
Method Summary | |
---|---|
boolean |
containsKey(java.lang.String key)
|
boolean |
containsValue(java.lang.Object value)
|
boolean |
equals(java.lang.Object obj)
|
static GcInfo |
from(javax.management.openmbean.CompositeData cd)
Returns a GcInfo object represented by the given CompositeData. |
java.lang.Object |
get(java.lang.String key)
|
java.lang.Object[] |
getAll(java.lang.String[] keys)
|
javax.management.openmbean.CompositeType |
getCompositeType()
|
long |
getDuration()
Returns the elapsed time of this GC in milliseconds. |
long |
getEndTime()
Returns the end time of this GC in milliseconds since the Java virtual machine was started. |
long |
getId()
Returns the identifier of this garbage collection which is the number of collections that this collector has done. |
java.util.Map<java.lang.String,java.lang.management.MemoryUsage> |
getMemoryUsageAfterGc()
Returns the memory usage of all memory pools at the end of this GC. |
java.util.Map<java.lang.String,java.lang.management.MemoryUsage> |
getMemoryUsageBeforeGc()
Returns the memory usage of all memory pools at the beginning of this GC. |
long |
getStartTime()
Returns the start time of this GC in milliseconds since the Java virtual machine was started. |
int |
hashCode()
|
java.lang.String |
toString()
|
java.util.Collection |
values()
|
Methods inherited from class java.lang.Object |
---|
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Method Detail |
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public long getId()
public long getStartTime()
public long getEndTime()
public long getDuration()
public java.util.Map<java.lang.String,java.lang.management.MemoryUsage> getMemoryUsageBeforeGc()
public java.util.Map<java.lang.String,java.lang.management.MemoryUsage> getMemoryUsageAfterGc()
public static GcInfo from(javax.management.openmbean.CompositeData cd)
Attribute Name Type index java.lang.Long startTime java.lang.Long endTime java.lang.Long memoryUsageBeforeGc javax.management.openmbean.TabularData memoryUsageAfterGc javax.management.openmbean.TabularData
java.lang.IllegalArgumentException
- if cd does not
represent a GcInfo object with the attributes
described above.public boolean containsKey(java.lang.String key)
containsKey
in interface javax.management.openmbean.CompositeData
public boolean containsValue(java.lang.Object value)
containsValue
in interface javax.management.openmbean.CompositeData
public boolean equals(java.lang.Object obj)
equals
in interface javax.management.openmbean.CompositeData
equals
in class java.lang.Object
public java.lang.Object get(java.lang.String key)
get
in interface javax.management.openmbean.CompositeData
public java.lang.Object[] getAll(java.lang.String[] keys)
getAll
in interface javax.management.openmbean.CompositeData
public javax.management.openmbean.CompositeType getCompositeType()
getCompositeType
in interface javax.management.openmbean.CompositeData
public int hashCode()
hashCode
in interface javax.management.openmbean.CompositeData
hashCode
in class java.lang.Object
public java.lang.String toString()
toString
in interface javax.management.openmbean.CompositeData
toString
in class java.lang.Object
public java.util.Collection values()
values
in interface javax.management.openmbean.CompositeData
|
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