java.io
Class ObjectOutputStream.PutFieldImpl

java.lang.Object
  java.io.ObjectOutputStream.PutField
      java.io.ObjectOutputStream.PutFieldImpl

Enclosing class:

ObjectOutputStream

private class ObjectOutputStream.PutFieldImpl

extends ObjectOutputStream.PutField

Default PutField implementation.

Field Summary

private ObjectStreamClass	desc class descriptor describing serializable fields
private Object[]	objVals object field values
private byte[]	primVals primitive field values

Constructor Summary

(package private)

ObjectOutputStream.PutFieldImpl(ObjectStreamClass desc) Creates PutFieldImpl object for writing fields defined in given class descriptor.

Method Summary

private int	getFieldOffset(String name, Class type) Returns offset of field with given name and type.
void	put(String name, boolean val) Put the value of the named boolean field into the persistent field.
void	put(String name, byte val) Put the value of the named byte field into the persistent field.
void	put(String name, char val) Put the value of the named char field into the persistent field.
void	put(String name, double val) Put the value of the named double field into the persistent field.
void	put(String name, float val) Put the value of the named float field into the persistent field.
void	put(String name, int val) Put the value of the named int field into the persistent field.
void	put(String name, long val) Put the value of the named long field into the persistent field.
void	put(String name, Object val) Put the value of the named Object field into the persistent field.
void	put(String name, short val) Put the value of the named short field into the persistent field.
void	write(ObjectOutput out) Write the data and fields to the specified ObjectOutput stream.
(package private) void	writeFields() Writes buffered primitive data and object fields to stream.

Methods inherited from class java.lang.Object

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

Field Detail

desc

private final ObjectStreamClass desc

class descriptor describing serializable fields

primVals

private final byte[] primVals

primitive field values

objVals

private final Object[] objVals

object field values

Constructor Detail

ObjectOutputStream.PutFieldImpl

ObjectOutputStream.PutFieldImpl(ObjectStreamClass desc)

Creates PutFieldImpl object for writing fields defined in given class descriptor.

Method Detail

put

public void put(String name,
                boolean val)

Description copied from class: ObjectOutputStream.PutField

Put the value of the named boolean field into the persistent field.

Specified by:

put in class ObjectOutputStream.PutField

Parameters:

name - the name of the serializable field

val - the value to assign to the field

put

public void put(String name,
                byte val)

Description copied from class: ObjectOutputStream.PutField

Put the value of the named byte field into the persistent field.

Specified by:

put in class ObjectOutputStream.PutField

Parameters:

name - the name of the serializable field

val - the value to assign to the field

put

public void put(String name,
                char val)

Description copied from class: ObjectOutputStream.PutField

Put the value of the named char field into the persistent field.

Specified by:

put in class ObjectOutputStream.PutField

Parameters:

name - the name of the serializable field

val - the value to assign to the field

put

public void put(String name,
                short val)

Description copied from class: ObjectOutputStream.PutField

Put the value of the named short field into the persistent field.

Specified by:

put in class ObjectOutputStream.PutField

Parameters:

name - the name of the serializable field

val - the value to assign to the field

put

public void put(String name,
                int val)

Description copied from class: ObjectOutputStream.PutField

Put the value of the named int field into the persistent field.

Specified by:

put in class ObjectOutputStream.PutField

Parameters:

name - the name of the serializable field

val - the value to assign to the field

put

public void put(String name,
                float val)

Description copied from class: ObjectOutputStream.PutField

Put the value of the named float field into the persistent field.

Specified by:

put in class ObjectOutputStream.PutField

Parameters:

name - the name of the serializable field

val - the value to assign to the field

put

public void put(String name,
                long val)

Description copied from class: ObjectOutputStream.PutField

Put the value of the named long field into the persistent field.

Specified by:

put in class ObjectOutputStream.PutField

Parameters:

name - the name of the serializable field

val - the value to assign to the field

put

public void put(String name,
                double val)

Description copied from class: ObjectOutputStream.PutField

Put the value of the named double field into the persistent field.

Specified by:

put in class ObjectOutputStream.PutField

Parameters:

name - the name of the serializable field

val - the value to assign to the field

put

public void put(String name,
                Object val)

Description copied from class: ObjectOutputStream.PutField

Put the value of the named Object field into the persistent field.

Specified by:

put in class ObjectOutputStream.PutField

Parameters:

name - the name of the serializable field

val - the value to assign to the field

write

public void write(ObjectOutput out)
           throws IOException

Description copied from class: ObjectOutputStream.PutField

Write the data and fields to the specified ObjectOutput stream.

Specified by:

write in class ObjectOutputStream.PutField

Parameters:

out - the stream to write the data and fields to

Throws:

IOException - if I/O errors occur while writing to the underlying stream

writeFields

void writeFields()
           throws IOException

Writes buffered primitive data and object fields to stream.

Throws:

IOException

getFieldOffset

private int getFieldOffset(String name,
                           Class type)

Returns offset of field with given name and type. A specified type of null matches all types, Object.class matches all non-primitive types, and any other non-null type matches assignable types only. Throws IllegalArgumentException if no matching field found.