Module java.management

Package javax.management.openmbean

Interface OpenMBeanParameterInfo

All Known Subinterfaces:

OpenMBeanAttributeInfo

All Known Implementing Classes:

OpenMBeanAttributeInfoSupport, OpenMBeanParameterInfoSupport

public interface OpenMBeanParameterInfo

Describes a parameter used in one or more operations or constructors of an open MBean.

This interface declares the same methods as the class MBeanParameterInfo. A class implementing this interface (typically OpenMBeanParameterInfoSupport) should extend MBeanParameterInfo.

Since:

1.5

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)	Compares the specified obj parameter with this OpenMBeanParameterInfo instance for equality.
Object	getDefaultValue()	Returns the default value for this parameter, if it has one, or null otherwise.
String	getDescription()	Returns a human readable description of the parameter described by this OpenMBeanParameterInfo instance.
Set<?>	getLegalValues()	Returns the set of legal values for this parameter, if it has one, or null otherwise.
Comparable<?>	getMaxValue()	Returns the maximal value for this parameter, if it has one, or null otherwise.
Comparable<?>	getMinValue()	Returns the minimal value for this parameter, if it has one, or null otherwise.
String	getName()	Returns the name of the parameter described by this OpenMBeanParameterInfo instance.
OpenType<?>	getOpenType()	Returns the open type of the values of the parameter described by this OpenMBeanParameterInfo instance.
boolean	hasDefaultValue()	Returns true if this parameter has a specified default value, or false otherwise.
int	hashCode()	Returns the hash code value for this OpenMBeanParameterInfo instance.
boolean	hasLegalValues()	Returns true if this parameter has a specified set of legal values, or false otherwise.
boolean	hasMaxValue()	Returns true if this parameter has a specified maximal value, or false otherwise.
boolean	hasMinValue()	Returns true if this parameter has a specified minimal value, or false otherwise.
boolean	isValue(Object obj)	Tests whether obj is a valid value for the parameter described by this OpenMBeanParameterInfo instance.
String	toString()	Returns a string representation of this OpenMBeanParameterInfo instance.

Method Details

getDescription

String getDescription()

Returns a human readable description of the parameter described by this OpenMBeanParameterInfo instance.

Returns:

the description.

getName

String getName()

Returns the name of the parameter described by this OpenMBeanParameterInfo instance.

Returns:

the name.

getOpenType

OpenType<?> getOpenType()

Returns the open type of the values of the parameter described by this OpenMBeanParameterInfo instance.

Returns:

the open type.

getDefaultValue

Object getDefaultValue()

Returns the default value for this parameter, if it has one, or null otherwise.

Returns:

the default value.

getLegalValues

Set<?> getLegalValues()

Returns the set of legal values for this parameter, if it has one, or null otherwise.

Returns:

the set of legal values.

getMinValue

Comparable<?> getMinValue()

Returns the minimal value for this parameter, if it has one, or null otherwise.

Returns:

the minimum value.

getMaxValue

Comparable<?> getMaxValue()

Returns the maximal value for this parameter, if it has one, or null otherwise.

Returns:

the maximum value.

hasDefaultValue

boolean hasDefaultValue()

Returns true if this parameter has a specified default value, or false otherwise.

Returns:

true if there is a default value.

hasLegalValues

boolean hasLegalValues()

Returns true if this parameter has a specified set of legal values, or false otherwise.

Returns:

true if there is a set of legal values.

hasMinValue

boolean hasMinValue()

Returns true if this parameter has a specified minimal value, or false otherwise.

Returns:

true if there is a minimum value.

hasMaxValue

boolean hasMaxValue()

Returns true if this parameter has a specified maximal value, or false otherwise.

Returns:

true if there is a maximum value.

isValue

boolean isValue(Object obj)

Tests whether obj is a valid value for the parameter described by this OpenMBeanParameterInfo instance.

Parameters:

obj - the object to be tested.

Returns:

true if obj is a valid value for the parameter described by this OpenMBeanParameterInfo instance, false otherwise.

equals

boolean equals(Object obj)

Compares the specified obj parameter with this OpenMBeanParameterInfo instance for equality.

Returns true if and only if all of the following statements are true:

• obj is non null,
• obj also implements the OpenMBeanParameterInfo interface,
• their names are equal
• their open types are equal
• their default, min, max and legal values are equal.

This ensures that this equals method works properly for obj parameters which are different implementations of the OpenMBeanParameterInfo interface.

Overrides:

equals in class Object

Parameters:

obj - the object to be compared for equality with this OpenMBeanParameterInfo instance;

Returns:

true if the specified object is equal to this OpenMBeanParameterInfo instance.

See Also:

• Object.hashCode()
• HashMap

hashCode

int hashCode()

Returns the hash code value for this OpenMBeanParameterInfo instance.

The hash code of an OpenMBeanParameterInfo instance is the sum of the hash codes of all elements of information used in equals comparisons (ie: its name, its open type, and its default, min, max and legal values).

This ensures that t1.equals(t2) implies that t1.hashCode()==t2.hashCode() for any two OpenMBeanParameterInfo instances t1 and t2, as required by the general contract of the method Object.hashCode().

Overrides:

hashCode in class Object

Returns:

the hash code value for this OpenMBeanParameterInfo instance

See Also:

• Object.equals(java.lang.Object)
• System.identityHashCode(java.lang.Object)

toString

String toString()

Returns a string representation of this OpenMBeanParameterInfo instance.

The string representation consists of the name of this class (ie javax.management.openmbean.OpenMBeanParameterInfo), the string representation of the name and open type of the described parameter, and the string representation of its default, min, max and legal values.

Overrides:

toString in class Object

Returns:

a string representation of this OpenMBeanParameterInfo instance