MBeanOperationInfo (Java Platform SE 8 )

java.lang.Object
- javax.management.MBeanFeatureInfo
- - 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

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

Constructor Summary

Constructors
Constructor and Description
`MBeanOperationInfo(String description, Method method)` Constructs an `MBeanOperationInfo` object.
`MBeanOperationInfo(String name, String description, MBeanParameterInfo[] signature, String type, int impact)` Constructs an `MBeanOperationInfo` object.
`MBeanOperationInfo(String name, String description, MBeanParameterInfo[] signature, String type, int impact, Descriptor descriptor)` Constructs an `MBeanOperationInfo` object.

Method Summary

All Methods Instance Methods Concrete 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 of `INFO`, `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

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

- 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
- Constructor Detail
  - MBeanOperationInfo
```
public MBeanOperationInfo(String description,
                          Method method)
```
    Constructs an MBeanOperationInfo object. The Descriptor of the constructed object will include fields contributed by any annotations on the Method object that contain the DescriptorKey meta-annotation.
    
    Parameters:
    
    method - The java.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 an MBeanOperationInfo 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 of INFO, ACTION, ACTION_INFO, UNKNOWN.
  - MBeanOperationInfo
```
public MBeanOperationInfo(String name,
                          String description,
                          MBeanParameterInfo[] signature,
                          String type,
                          int impact,
                          Descriptor descriptor)
```
    Constructs an MBeanOperationInfo 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 of INFO, ACTION, ACTION_INFO, UNKNOWN.
    
    descriptor - The descriptor for the operation. This may be null which is equivalent to an empty descriptor.
    
    Since:
    
    1.6
- 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.
    
    Overrides:
    
    clone in class Object
    
    Returns:
    
    a clone of this instance.
    
    See Also:
    
    Cloneable
  - 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 referenced MBeanParameterInfo object is not copied.
    
    Returns:
    
    An array of MBeanParameterInfo objects.
  - getImpact
```
public int getImpact()
```
    Returns the impact of the method, one of INFO, 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, the toString 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 class Object 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())
    Overrides:
    
    toString in class Object
    
    Returns:
    
    a string representation of the object.
  - equals
```
public boolean equals(Object o)
```
    Compare this MBeanOperationInfo to another.
    
    Overrides:
    
    equals in class MBeanFeatureInfo
    
    Parameters:
    
    o - the object to compare to.
    
    Returns:
    
    true if and only if o is an MBeanOperationInfo such that its MBeanFeatureInfo.getName(), getReturnType(), MBeanFeatureInfo.getDescription(), getImpact(), MBeanFeatureInfo.getDescriptor() and getSignature() 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 by HashMap.
    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 in equals 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 the hashCode 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 the hashCode 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 Java™ programming language.)
    Overrides:
    
    hashCode in class MBeanFeatureInfo
    
    Returns:
    
    a hash code value for this object.
    
    See Also:
    
    Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)

Submit a bug or feature
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.
Copyright © 1993, 2017, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.

Class MBeanOperationInfo

Field Summary

Fields inherited from class javax.management.MBeanFeatureInfo

Constructor Summary

Method Summary

Methods inherited from class javax.management.MBeanFeatureInfo

Methods inherited from class java.lang.Object

Field Detail

INFO

ACTION

ACTION_INFO

UNKNOWN

Constructor Detail

MBeanOperationInfo

MBeanOperationInfo

MBeanOperationInfo

Method Detail

clone

getReturnType

getSignature

getImpact

toString

equals

hashCode