- java.lang.Object
-
- javax.management.MBeanFeatureInfo
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- javax.management.MBeanOperationInfo
-
- All Implemented Interfaces:
- Serializable, Cloneable, DescriptorRead
- Direct Known Subclasses:
- ModelMBeanOperationInfo, OpenMBeanOperationInfoSupport
public class MBeanOperationInfo extends MBeanFeatureInfo implements Cloneable
Describes a management operation exposed by an MBean. Instances of this class are immutable. Subclasses may be mutable but this is not recommended.- Since:
- 1.5
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field and Description static int
ACTION
Indicates that the operation is write-like: it has an effect but does not return any information from the MBean.static int
ACTION_INFO
Indicates that the operation is both read-like and write-like: it has an effect, and it also returns information from the MBean.static int
INFO
Indicates that the operation is read-like: it returns information but does not change any state.static int
UNKNOWN
Indicates that the impact of the operation is unknown or cannot be expressed using one of the other values.-
Fields inherited from class javax.management.MBeanFeatureInfo
description, name
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Constructor Summary
Constructors Constructor and Description MBeanOperationInfo(String description, Method method)
Constructs anMBeanOperationInfo
object.MBeanOperationInfo(String name, String description, MBeanParameterInfo[] signature, String type, int impact)
Constructs anMBeanOperationInfo
object.MBeanOperationInfo(String name, String description, MBeanParameterInfo[] signature, String type, int impact, Descriptor descriptor)
Constructs anMBeanOperationInfo
object.
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Method Summary
Methods Modifier and Type Method and Description Object
clone()
Returns a shallow clone of this instance.boolean
equals(Object o)
Compare this MBeanOperationInfo to another.int
getImpact()
Returns the impact of the method, one ofINFO
,ACTION
,ACTION_INFO
,UNKNOWN
.String
getReturnType()
Returns the type of the method's return value.MBeanParameterInfo[]
getSignature()
Returns the list of parameters for this operation.int
hashCode()
Returns a hash code value for the object.String
toString()
Returns a string representation of the object.-
Methods inherited from class javax.management.MBeanFeatureInfo
getDescription, getDescriptor, getName
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-
-
-
Field Detail
-
INFO
public static final int INFO
Indicates that the operation is read-like: it returns information but does not change any state.- See Also:
- Constant Field Values
-
ACTION
public static final int ACTION
Indicates that the operation is write-like: it has an effect but does not return any information from the MBean.- See Also:
- Constant Field Values
-
ACTION_INFO
public static final int ACTION_INFO
Indicates that the operation is both read-like and write-like: it has an effect, and it also returns information from the MBean.- See Also:
- Constant Field Values
-
UNKNOWN
public static final int UNKNOWN
Indicates that the impact of the operation is unknown or cannot be expressed using one of the other values.- See Also:
- Constant Field Values
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Constructor Detail
-
MBeanOperationInfo
public MBeanOperationInfo(String description, Method method)
Constructs anMBeanOperationInfo
object. TheDescriptor
of the constructed object will include fields contributed by any annotations on theMethod
object that contain theDescriptorKey
meta-annotation.- Parameters:
method
- Thejava.lang.reflect.Method
object describing the MBean operation.description
- A human readable description of the operation.
-
MBeanOperationInfo
public MBeanOperationInfo(String name, String description, MBeanParameterInfo[] signature, String type, int impact)
Constructs anMBeanOperationInfo
object.- Parameters:
name
- The name of the method.description
- A human readable description of the operation.signature
-MBeanParameterInfo
objects describing the parameters(arguments) of the method. This may be null with the same effect as a zero-length array.type
- The type of the method's return value.impact
- The impact of the method, one ofINFO
,ACTION
,ACTION_INFO
,UNKNOWN
.
-
MBeanOperationInfo
public MBeanOperationInfo(String name, String description, MBeanParameterInfo[] signature, String type, int impact, Descriptor descriptor)
Constructs anMBeanOperationInfo
object.- Parameters:
name
- The name of the method.description
- A human readable description of the operation.signature
-MBeanParameterInfo
objects describing the parameters(arguments) of the method. This may be null with the same effect as a zero-length array.type
- The type of the method's return value.impact
- The impact of the method, one ofINFO
,ACTION
,ACTION_INFO
,UNKNOWN
.descriptor
- The descriptor for the operation. This may be null which is equivalent to an empty descriptor.- Since:
- 1.6
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Method Detail
-
clone
public Object clone()
Returns a shallow clone of this instance. The clone is obtained by simply calling super.clone(), thus calling the default native shallow cloning mechanism implemented by Object.clone(). No deeper cloning of any internal field is made.
Since this class is immutable, cloning is chiefly of interest to subclasses.
-
getReturnType
public String getReturnType()
Returns the type of the method's return value.- Returns:
- the return type.
-
getSignature
public MBeanParameterInfo[] getSignature()
Returns the list of parameters for this operation. Each parameter is described by an
MBeanParameterInfo
object.The returned array is a shallow copy of the internal array, which means that it is a copy of the internal array of references to the
MBeanParameterInfo
objects but that each referencedMBeanParameterInfo
object is not copied.- Returns:
- An array of
MBeanParameterInfo
objects.
-
getImpact
public int getImpact()
Returns the impact of the method, one ofINFO
,ACTION
,ACTION_INFO
,UNKNOWN
.- Returns:
- the impact code.
-
toString
public String toString()
Description copied from class:Object
Returns a string representation of the object. In general, thetoString
method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.The
toString
method for classObject
returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@
', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:getClass().getName() + '@' + Integer.toHexString(hashCode())
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equals
public boolean equals(Object o)
Compare this MBeanOperationInfo to another.- Overrides:
equals
in classMBeanFeatureInfo
- Parameters:
o
- the object to compare to.- Returns:
- true if and only if
o
is an MBeanOperationInfo such that itsMBeanFeatureInfo.getName()
,getReturnType()
,MBeanFeatureInfo.getDescription()
,getImpact()
,MBeanFeatureInfo.getDescriptor()
andgetSignature()
values are equal (not necessarily identical) to those of this MBeanConstructorInfo. Two signature arrays are equal if their elements are pairwise equal. - See Also:
Object.hashCode()
,HashMap
-
hashCode
public int hashCode()
Description copied from class:Object
Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided byHashMap
.The general contract of
hashCode
is:- Whenever it is invoked on the same object more than once during
an execution of a Java application, the
hashCode
method must consistently return the same integer, provided no information used inequals
comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. - If two objects are equal according to the
equals(Object)
method, then calling thehashCode
method on each of the two objects must produce the same integer result. - It is not required that if two objects are unequal
according to the
Object.equals(java.lang.Object)
method, then calling thehashCode
method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.
As much as is reasonably practical, the hashCode method defined by class
Object
does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)- Overrides:
hashCode
in classMBeanFeatureInfo
- Returns:
- a hash code value for this object.
- See Also:
Object.equals(java.lang.Object)
,System.identityHashCode(java.lang.Object)
- Whenever it is invoked on the same object more than once during
an execution of a Java application, the
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