Class: javax.management.openmbean.CompositeType

The CompositeType class is the open type class whose instances describe the types of CompositeData values.
Since:
@since 1.5

Inheritance

Superclass tree: Implements:

Methods

  • CompositeTypetop

    public CompositeType(String typeName, String description, String[] itemNames, String[] itemDescriptions, OpenType<?>[] itemTypes) throws OpenDataException
    Constructs a CompositeType instance, checking for the validity of the given parameters. The validity constraints are described below for each parameter.

    Note that the contents of the three array parameters itemNames, itemDescriptions and itemTypes are internally copied so that any subsequent modification of these arrays by the caller of this constructor has no impact on the constructed CompositeType instance.

    The Java class name of composite data values this composite type represents (ie the class name returned by the getClassName method) is set to the string value returned by CompositeData.class.getName().

    Parameters:
    @param typeName The name given to the composite type this instance represents; cannot be a null or empty string.
     
    @param description The human readable description of the composite type this instance represents; cannot be a null or empty string.
     
    @param itemNames The names of the items contained in the composite data values described by this CompositeType instance; cannot be null and should contain at least one element; no element can be a null or empty string. Note that the order in which the item names are given is not important to differentiate a CompositeType instance from another; the item names are internally stored sorted in ascending alphanumeric order.
     
    @param itemDescriptions The descriptions, in the same order as itemNames, of the items contained in the composite data values described by this CompositeType instance; should be of the same size as itemNames; no element can be a null or empty string.
     
    @param itemTypes The open type instances, in the same order as itemNames, describing the items contained in the composite data values described by this CompositeType instance; should be of the same size as itemNames; no element can be null.
     
    Exceptions:
    @throws IllegalArgumentException If typeName or description is a null or empty string, or itemNames or itemDescriptions or itemTypes is null, or any element of itemNames or itemDescriptions is a null or empty string, or any element of itemTypes is null, or itemNames or itemDescriptions or itemTypes are not of the same size.
     
    @throws OpenDataException If itemNames contains duplicate item names (case sensitive, but leading and trailing whitespaces removed).
    Related Links:
    Google Code Search
    Stack Overflow

  • checkForEmptyStringtop

    static private void checkForEmptyString(String[] arg, String argName)
    Related Links:
    Google Code Search
    Stack Overflow

  • checkForNullElementtop

    static private void checkForNullElement(Object[] arg, String argName)
    Related Links:
    Google Code Search
    Stack Overflow

  • containsKeytop

    public boolean containsKey(String itemName)
    Returns true if this CompositeType instance defines an item whose name is itemName.
    Parameters:
    @param itemName the name of the item.
    Return:
    @return true if an item of this name is present.
    Related Links:
    Google Code Search
    Stack Overflow

  • equalstop

    public boolean equals(Object obj)
    Compares the specified obj parameter with this CompositeType instance for equality.

    Two CompositeType instances are equal if and only if all of the following statements are true:

    • their type names are equal
    • their items' names and types are equal

     
    Parameters:
    @param obj the object to be compared for equality with this CompositeType instance; if obj is null, equals returns false.
    Return:
    @return true if the specified object is equal to this CompositeType instance.
    Override hierarchy:
    equals from OpenType<CompositeData>
    equals from Object
    Related Links:
    Google Code Search
    Stack Overflow

  • getDescriptiontop

    public String getDescription(String itemName)
    Returns the description of the item whose name is itemName, or null if this CompositeType instance does not define any item whose name is itemName.
    Parameters:
    @param itemName the name of the item.
    Return:
    @return the description.
    Related Links:
    Google Code Search
    Stack Overflow

  • getTypetop

    public OpenType<?> getType(String itemName)
    Returns the open type of the item whose name is itemName, or null if this CompositeType instance does not define any item whose name is itemName.
    Parameters:
    @param itemName the name of the time.
    Return:
    @return the type.
    Related Links:
    Google Code Search
    Stack Overflow

  • hashCodetop

    public int hashCode()
    Returns the hash code value for this CompositeType instance.

    The hash code of a CompositeType instance is the sum of the hash codes of all elements of information used in equals comparisons (ie: name, items names, items types). This ensures that t1.equals(t2) implies that t1.hashCode()==t2.hashCode() for any two CompositeType instances t1 and t2, as required by the general contract of the method Object.hashCode().

    As CompositeType instances are immutable, the hash code for this instance is calculated once, on the first call to hashCode, and then the same value is returned for subsequent calls.

    Return:
    @return the hash code value for this CompositeType instance
    Override hierarchy:
    hashCode from OpenType<CompositeData>
    hashCode from Object
    Related Links:
    Google Code Search
    Stack Overflow

  • isAssignableFromtop

    boolean isAssignableFrom(OpenType ot)
    Tests whether values of the given type can be assigned to this open type. The result is true if the given type is also a CompositeType with the same name (javax.management.openmbean.OpenType.getTypeName()), and every item in this type is also present in the given type with the same name and assignable type. There can be additional items in the given type, which are ignored.
    Parameters:
    @param ot the type to be tested.
    Return:
    @return true if ot is assignable to this open type.
    Override hierarchy:
    isAssignableFrom from OpenType<CompositeData>
    Related Links:
    Google Code Search
    Stack Overflow

  • isValuetop

    public boolean isValue(Object obj)
    Tests whether obj is a value which could be described by this CompositeType instance.

    If obj is null or is not an instance of javax.management.openmbean.CompositeData, isValue returns false.

    If obj is an instance of javax.management.openmbean.CompositeData, then let ct be its CompositeType as returned by javax.management.openmbean.CompositeData.getCompositeType(). The result is true if this is assignable from ct. This means that:

    • this.getTypeName() equals ct.getTypeName(), and
    • there are no item names present in this that are not also present in ct, and
    • for every item in this, its type is assignable from the type of the corresponding item in ct.

    A TabularType is assignable from another TabularType if they have the same typeName and index name list, and the row type of the first is assignable from the row type of the second.

    An ArrayType is assignable from another ArrayType if they have the same dimension; and both are primitive arrays or neither is; and the element type of the first is assignable from the element type of the second.

    In every other case, an OpenType is assignable from another OpenType only if they are equal.

    These rules mean that extra items can be added to a CompositeData without making it invalid for a CompositeType that does not have those items.

    Parameters:
    @param obj the value whose open type is to be tested for compatibility with this CompositeType instance.
    Return:
    @return true if obj is a value for this composite type, false otherwise.
    Override hierarchy:
    isValue from OpenType<CompositeData>
    Related Links:
    Google Code Search
    Stack Overflow

  • keySettop

    public Set<String> keySet()
    Returns an unmodifiable Set view of all the item names defined by this CompositeType instance. The set's iterator will return the item names in ascending order.
    Return:
    @return a java.util.Set of String .
    Related Links:
    Google Code Search
    Stack Overflow

  • toStringtop

    public String toString()
    Returns a string representation of this CompositeType instance.

    The string representation consists of the name of this class (ie javax.management.openmbean.CompositeType), the type name for this instance, and the list of the items names and types string representation of this instance.

    As CompositeType instances are immutable, the string representation for this instance is calculated once, on the first call to toString, and then the same value is returned for subsequent calls.

    Return:
    @return a string representation of this CompositeType instance
    Override hierarchy:
    toString from OpenType<CompositeData>
    toString from Object
    Related Links:
    Google Code Search
    Stack Overflow

Fields

  • myHashCode

    transient private Integer myHashCode

  • myNamesSet

    transient private Set<String> myNamesSet

  • myToString

    transient private String myToString

  • nameToDescription

    private TreeMap<String, String> nameToDescription

  • nameToType

    private TreeMap<String, OpenType<?>> nameToType

  • serialVersionUID

    static final long serialVersionUID = -5366242454346948798