org.zkoss.io
Class Serializables

java.lang.Object
  extended by org.zkoss.io.Serializables

public class Serializables
extends java.lang.Object

Utilities to handle java.io.Serializable.

Author:
tomyeh

Field Summary
static org.slf4j.Logger logio
          The logger called org.zkoss.io.serializable used to log serialization information.
 
Method Summary
static
<T> java.util.Collection<T>
smartRead(java.io.ObjectInputStream s, java.util.Collection<T> col)
          Reads serializable elements back (serialized by smartWrite(ObjectOutputStream,Collection))
static
<T> java.util.List<T>
smartRead(java.io.ObjectInputStream s, java.util.List<T> col)
          Reads serializable elements back (serialized by smartWrite(ObjectOutputStream,Collection))
static
<K,V> java.util.Map<K,V>
smartRead(java.io.ObjectInputStream s, java.util.Map<K,V> map)
          Reads serializable entries back (serialized by smartWrite(ObjectOutputStream,Map)).
static
<T> void
smartWrite(java.io.ObjectOutputStream s, java.util.Collection<T> col)
          Writes only serializable elements of the specified collection.
static
<K,V> void
smartWrite(java.io.ObjectOutputStream s, java.util.Map<K,V> map)
          Writes only serializable entries of the specified map.
static void smartWrite(java.io.ObjectOutputStream s, java.lang.Object val)
          Writes the given value only if it is serializable.
static
<T> void
smartWrite(java.io.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 Detail

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 Detail

smartWrite

public static <K,V> void smartWrite(java.io.ObjectOutputStream s,
                                    java.util.Map<K,V> map)
                       throws java.io.IOException
Writes only serializable entries of the specified map. Non-serializable attributes are ignored.

Throws:
java.io.IOException

smartRead

public static <K,V> java.util.Map<K,V> smartRead(java.io.ObjectInputStream s,
                                                 java.util.Map<K,V> map)
                                    throws java.io.IOException,
                                           java.lang.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:
java.io.IOException
java.lang.ClassNotFoundException

smartWrite

public static <T> void smartWrite(java.io.ObjectOutputStream s,
                                  java.util.Collection<T> col)
                       throws java.io.IOException
Writes only serializable elements of the specified collection.

Throws:
java.io.IOException

smartRead

public static <T> java.util.Collection<T> smartRead(java.io.ObjectInputStream s,
                                                    java.util.Collection<T> col)
                                         throws java.io.IOException,
                                                java.lang.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:
java.io.IOException
java.lang.ClassNotFoundException

smartRead

public static <T> java.util.List<T> smartRead(java.io.ObjectInputStream s,
                                              java.util.List<T> col)
                                   throws java.io.IOException,
                                          java.lang.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:
java.io.IOException
java.lang.ClassNotFoundException
Since:
6.0.0

smartWrite

public static <T> void smartWrite(java.io.ObjectOutputStream s,
                                  T[] ary)
                       throws java.io.IOException
Writes only serializable elements of the specified array.

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

Throws:
java.io.IOException
Since:
3.0.0

smartWrite

public static void smartWrite(java.io.ObjectOutputStream s,
                              java.lang.Object val)
                       throws java.io.IOException
Writes the given value only if it is serializable. If not, null is written.

Throws:
java.io.IOException
Since:
5.0.7


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