Package org.zkoss.io

Class Serializables

java.lang.Object

org.zkoss.io.Serializables

public class Serializables
extends Object

Utilities to handle java.io.Serializable.

Author:

tomyeh

Field Summary

Fields

Modifier and Type	Field	Description
static final org.slf4j.Logger	logio	The logger called org.zkoss.io.serializable used to log serialization information.

Method Summary

Modifier and Type	Method	Description
static <T> Collection<T>	smartRead(ObjectInputStream s, Collection<T> col)	Reads serializable elements back (serialized by smartWrite(ObjectOutputStream,Collection))
static <T> List<T>	smartRead(ObjectInputStream s, List<T> col)	Reads serializable elements back (serialized by smartWrite(ObjectOutputStream,Collection))
static <K, V> Map<K,V>	smartRead(ObjectInputStream s, Map<K,V> map)	Reads serializable entries back (serialized by smartWrite(ObjectOutputStream,Map)).
static void	smartWrite(ObjectOutputStream s, Object val)	Writes the given value only if it is serializable.
static <T> void	smartWrite(ObjectOutputStream s, Collection<T> col)	Writes only serializable elements of the specified collection.
static <K, V> void	smartWrite(ObjectOutputStream s, Map<K,V> map)	Writes only serializable entries of the specified map.
static <T> void	smartWrite(ObjectOutputStream s, T[] ary)	Writes only serializable elements of the specified array.

Methods inherited from class java.lang.Object

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

Field Details

logio

public static final org.slf4j.Logger logio

The logger called org.zkoss.io.serializable used to log serialization information. You could set it to DEBUG, such that the non-serializable and ignored values will be logged.

Since:

5.0.7

Method Details

smartWrite

public static <K,
V> void smartWrite(ObjectOutputStream s,
 Map<K,V> map)
                             throws IOException

Writes only serializable entries of the specified map. Non-serializable attributes are ignored.

Throws:

IOException

smartRead

public static <K,
V> Map<K,V> smartRead(ObjectInputStream s,
 Map<K,V> map)
                                throws IOException,
ClassNotFoundException

Reads serializable entries back (serialized by smartWrite(ObjectOutputStream,Map)).

Parameters:

map - the map to hold the data being read. If null and any data is read, a new map (HashMap) is created and returned.

Returns:

the map being read

Throws:

IOException

ClassNotFoundException

smartWrite

public static <T> void smartWrite(ObjectOutputStream s,
 Collection<T> col)
                           throws IOException

Writes only serializable elements of the specified collection.

Throws:

IOException

smartRead

public static <T> Collection<T> smartRead(ObjectInputStream s,
 Collection<T> col)
                                   throws IOException,
ClassNotFoundException

Reads serializable elements back (serialized by smartWrite(ObjectOutputStream,Collection))

Parameters:

col - the collection to hold the data being read. If null and and data is read, a new collection (LinkedList) is created and returned.

Returns:

the collection being read

Throws:

IOException

ClassNotFoundException

smartRead

public static <T> List<T> smartRead(ObjectInputStream s,
 List<T> col)
                             throws IOException,
ClassNotFoundException

Reads serializable elements back (serialized by smartWrite(ObjectOutputStream,Collection))

Parameters:

col - the collection to hold the data being read. If null and and data is read, a new collection (LinkedList) is created and returned.

Returns:

the collection being read

Throws:

IOException

ClassNotFoundException

Since:

6.0.0

smartWrite

public static <T> void smartWrite(ObjectOutputStream s,
 T[] ary)
                           throws IOException

Writes only serializable elements of the specified array.

To read back, use smartRead(ObjectInputStream, Collection).

Throws:

IOException

Since:

3.0.0

smartWrite

public static void smartWrite(ObjectOutputStream s,
 Object val)
                       throws IOException

Writes the given value only if it is serializable. If not, null is written.

Throws:

IOException

Since:

5.0.7