- java.lang.Object
-
- javax.management.openmbean.OpenType<T>
-
- Type Parameters:
T
- the Java type that instances described by this type must have. For example,SimpleType.INTEGER
is aSimpleType<Integer>
which is a subclass ofOpenType<Integer>
, meaning that an attribute, parameter, or return value that is described as aSimpleType.INTEGER
must have Java typeInteger
.
- All Implemented Interfaces:
- Serializable
- Direct Known Subclasses:
- ArrayType, CompositeType, SimpleType, TabularType
public abstract class OpenType<T> extends Object implements Serializable
TheOpenType
class is the parent abstract class of all classes which describe the actual open type of open data values.An open type is defined by:
- the fully qualified Java class name of the open data values this type describes;
note that only a limited set of Java classes is allowed for open data values
(see
ALLOWED_CLASSNAMES_LIST
), - its name,
- its description.
- Since:
- 1.5
- See Also:
- Serialized Form
-
-
Field Summary
Fields Modifier and Type Field and Description static String[]
ALLOWED_CLASSNAMES
Deprecated.UseALLOWED_CLASSNAMES_LIST
instead.static List<String>
ALLOWED_CLASSNAMES_LIST
List of the fully qualified names of the Java classes allowed for open data values.
-
Constructor Summary
Constructors Modifier Constructor and Description protected
OpenType(String className, String typeName, String description)
Constructs anOpenType
instance (actually a subclass instance asOpenType
is abstract), checking for the validity of the given parameters.
-
Method Summary
Methods Modifier and Type Method and Description abstract boolean
equals(Object obj)
Compares the specifiedobj
parameter with this open type instance for equality.String
getClassName()
Returns the fully qualified Java class name of the open data values this open type describes.String
getDescription()
Returns the text description of thisOpenType
instance.String
getTypeName()
Returns the name of thisOpenType
instance.abstract int
hashCode()
Returns a hash code value for the object.boolean
isArray()
Returnstrue
if the open data values this open type describes are arrays,false
otherwise.abstract boolean
isValue(Object obj)
Tests whether obj is a value for this open type.abstract String
toString()
Returns a string representation of this open type instance.
-
-
-
Field Detail
-
ALLOWED_CLASSNAMES_LIST
public static final List<String> ALLOWED_CLASSNAMES_LIST
List of the fully qualified names of the Java classes allowed for open data values. A multidimensional array of any one of these classes or their corresponding primitive types is also an allowed class for open data values.ALLOWED_CLASSNAMES_LIST = { "java.lang.Void", "java.lang.Boolean", "java.lang.Character", "java.lang.Byte", "java.lang.Short", "java.lang.Integer", "java.lang.Long", "java.lang.Float", "java.lang.Double", "java.lang.String", "java.math.BigDecimal", "java.math.BigInteger", "java.util.Date", "javax.management.ObjectName", CompositeData.class.getName(), TabularData.class.getName() } ;
-
ALLOWED_CLASSNAMES
@Deprecated public static final String[] ALLOWED_CLASSNAMES
Deprecated. UseALLOWED_CLASSNAMES_LIST
instead.
-
-
Constructor Detail
-
OpenType
protected OpenType(String className, String typeName, String description) throws OpenDataException
Constructs anOpenType
instance (actually a subclass instance asOpenType
is abstract), checking for the validity of the given parameters. The validity constraints are described below for each parameter.
- Parameters:
className
- The fully qualified Java class name of the open data values this open type describes. The valid Java class names allowed for open data values are listed inALLOWED_CLASSNAMES_LIST
. A multidimensional array of any one of these classes or their corresponding primitive types is also an allowed class, in which case the class name follows the rules defined by the methodgetName()
ofjava.lang.Class
. For example, a 3-dimensional array of Strings has for class name "[[[Ljava.lang.String;
" (without the quotes).
typeName
- The name given to the open type this instance represents; cannot be a null or empty string.
description
- The human readable description of the open type this instance represents; cannot be a null or empty string.
- Throws:
IllegalArgumentException
- if className, typeName or description is a null or empty string
OpenDataException
- if className is not one of the allowed Java class names for open data
-
-
Method Detail
-
getClassName
public String getClassName()
Returns the fully qualified Java class name of the open data values this open type describes. The only possible Java class names for open data values are listed inALLOWED_CLASSNAMES_LIST
. A multidimensional array of any one of these classes or their corresponding primitive types is also an allowed class, in which case the class name follows the rules defined by the methodgetName()
ofjava.lang.Class
. For example, a 3-dimensional array of Strings has for class name "[[[Ljava.lang.String;
" (without the quotes), a 3-dimensional array of Integers has for class name "[[[Ljava.lang.Integer;
" (without the quotes), and a 3-dimensional array of int has for class name "[[[I
" (without the quotes)- Returns:
- the class name.
-
getTypeName
public String getTypeName()
Returns the name of thisOpenType
instance.- Returns:
- the type name.
-
getDescription
public String getDescription()
Returns the text description of thisOpenType
instance.- Returns:
- the description.
-
isArray
public boolean isArray()
Returnstrue
if the open data values this open type describes are arrays,false
otherwise.- Returns:
- true if this is an array type.
-
isValue
public abstract boolean isValue(Object obj)
Tests whether obj is a value for this open type.- Parameters:
obj
- the object to be tested for validity.- Returns:
true
if obj is a value for this open type,false
otherwise.
-
equals
public abstract boolean equals(Object obj)
Compares the specifiedobj
parameter with this open type instance for equality.- Overrides:
equals
in classObject
- Parameters:
obj
- the object to compare to.- Returns:
- true if this object and
obj
are equal. - See Also:
Object.hashCode()
,HashMap
-
hashCode
public abstract 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 classObject
- 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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Document heeft de 11/06/2005 gemaakt, de laatste keer de 04/03/2020 gewijzigd
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