Introduction
The Java.io ObjectStreamField is the class used to give the description on serializable field. To declare the serializable field in class an array of Java.io ObjectStreamField is used.
Declaration
Java.io ObjectStreamField class is declared below:
Public class ObjectStreamField extends Object implements Comparable<Object> Table
| Constructor | Description |
|---|---|
| ObjectStreamField(String name, Class<?>type) | The function of this constructor is to create the field with represented type. |
| ObjectStreamField (String name, Class<?>type, boolean unshared) | The function of this constructor is to field with represented name and type. |
Table
| Method | Description |
|---|---|
| String toString | To abstract path name the method returns the pathname string. |
| String getName() | The files or directories which are denoted by its abstract pathname are named by this method. |
| Class<?> getType() | The function of this method is to retutn the type of field. |
| int compareTo(Object obj) | The function of this method is compares the two object stream fields. |
| Boolean isUnshared() | The function of this method is to check that the object stream represents the serializable field are not. |
Description
From the following classes, methods are inherited the ObjectStreamField class.
- Java.io.Object
Examples
Usage of Boolean isUnshared() method.
[c]import java.io.*;
public class ObjectStreamField
{
public static void main(String[] args)
{
// creating a new object stream class for Integers
ObjectStreamClass osc = ObjectStreamClass.lookup(Integer.class);
// To get the field value from Integer class
ObjectStreamField field = osc.getField("value");
// To check if field is unshared or shared
System.out.println("" + field.isUnshared());
}
}[/c]
The result will be as follows.
Output
[c]false
[/c]
ObjectStreamField.java
[c]import java.io.*;
public class ObjectStreamField
{
public static void main(String[] args)
{
// creating a new object stream class for Integers
ObjectStreamClass osc = ObjectStreamClass.lookup(Integer.class);
// To get the field value from Integer class
ObjectStreamField field = osc.getField("value");
// To get the type of the field
System.out.println("" + field.getType());
}
}[/c]
Output
The result will be as follows.
[c]int[/c]
Key Points
- The Java.io ObjectStreamField is the class used to give the description on serializable field.
- To declare the serializable field in class an array of object stream field is used.