IT. Expert System.

All Implemented Interfaces:

Comparable<Object>

public class ObjectStreamField
extends Object
implements Comparable<Object>

See Also:

ObjectOutputStream.writeFields(), ObjectInputStream.readFields()

• Constructor Summary

  Constructors

  Constructor and Description
  ObjectStreamField(String name, Class<?> cl) Constructs an ObjectStreamField with the specified name and type.
  ObjectStreamField(String name, Class<?> cl, boolean unshared) Constructs an ObjectStreamField with the specified name, type and the indication if it is unshared.

• Method Summary

  Methods

  Modifier and Type	Method and Description
  int	compareTo(Object o) Compares this field descriptor to the specified one.
  String	getName() Gets the name of this field.
  int	getOffset() Gets the offset of this field in the object.
  Class<?>	getType() Gets the type of this field.
  char	getTypeCode() Gets a character code for the type of this field.
  String	getTypeString() Gets the type signature used by the VM to represent the type of this field.
  boolean	isPrimitive() Indicates whether this field's type is a primitive type.
  boolean	isUnshared() Indicates whether this field is unshared.
  protected void	setOffset(int newValue) Sets this field's offset in the object.
  String	toString() Returns a string containing a concise, human-readable description of this field descriptor.

  • Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

• Constructor Detail

  • ObjectStreamField

    public ObjectStreamField(String name,
                     Class<?> cl)

    Constructs an ObjectStreamField with the specified name and type.

    Parameters:

    name - the name of the field.

    cl - the type of the field.

    Throws:

    NullPointerException - if name or cl is null.

  • ObjectStreamField

    public ObjectStreamField(String name,
                     Class<?> cl,
                     boolean unshared)

    Constructs an ObjectStreamField with the specified name, type and the indication if it is unshared.

    Parameters:

    name - the name of the field.

    cl - the type of the field.

    unshared - true if the field is written and read unshared; false otherwise.

    Throws:

    NullPointerException - if name or cl is null.

    See Also:

    ObjectOutputStream.writeUnshared(Object)

• Method Detail

  • compareTo

    public int compareTo(Object o)

    Compares this field descriptor to the specified one. Checks first if one of the compared fields has a primitive type and the other one not. If so, the field with the primitive type is considered to be "smaller". If both fields are equal, their names are compared.

    Specified by:

    compareTo in interface Comparable<Object>

    Parameters:

    o - the object to compare with.

    Returns:

    -1 if this field is "smaller" than field o, 0 if both fields are equal; 1 if this field is "greater" than field o.

  • getName

    public String getName()

    Gets the name of this field.

    Returns:

    the field's name.

  • getOffset

    public int getOffset()

    Gets the offset of this field in the object.

    Returns:

    this field's offset.

  • getType

    public Class<?> getType()

    Gets the type of this field.

    Returns:

    a Class object representing the type of the field.

  • getTypeCode

    public char getTypeCode()

    Gets a character code for the type of this field. The following codes are used:

     B     byte
     C     char
     D     double
     F     float
     I     int
     J     long
     L     class or interface
     S     short
     Z     boolean
     [     array
     

    Returns:

    the field's type code.

  • getTypeString

    public String getTypeString()

    Gets the type signature used by the VM to represent the type of this field.

    Returns:

    the signature of this field's class or null if this field's type is primitive.

  • isPrimitive

    public boolean isPrimitive()

    Indicates whether this field's type is a primitive type.

    Returns:

    true if this field's type is primitive; false if the type of this field is a regular class.

  • setOffset

    protected void setOffset(int newValue)

    Sets this field's offset in the object.

    Parameters:

    newValue - the field's new offset.

  • toString

    public String toString()

    Returns a string containing a concise, human-readable description of this field descriptor.

    Overrides:

    toString in class Object

    Returns:

    a printable representation of this descriptor.

  • isUnshared

    public boolean isUnshared()

    Indicates whether this field is unshared.

    Returns:

    true if this field is unshared, false otherwise.