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Berkeley DB version 4.4.20 |
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java.lang.Object com.sleepycat.bind.serial.SerialBase com.sleepycat.bind.serial.SerialBinding
A concrete EntryBinding
that treats a key or data entry as
a serialized object.
This binding stores objects in serialized object format. The
deserialized objects are returned by the binding, and their
Class
must implement the Serializable
interface.
Constructor Summary | |
SerialBinding(ClassCatalog classCatalog,
Class baseClass)
Creates a serial binding. |
Method Summary | |
Object |
entryToObject(DatabaseEntry entry)
Deserialize an object from an entry buffer. |
Class |
getBaseClass()
Returns the base class for this binding. |
ClassLoader |
getClassLoader()
Returns the class loader to be used during deserialization, or null if a default class loader should be used. |
void |
objectToEntry(Object object,
DatabaseEntry entry)
Serialize an object into an entry buffer. |
Methods inherited from class com.sleepycat.bind.serial.SerialBase |
getSerialBufferSize, getSerialOutput, setSerialBufferSize |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public SerialBinding(ClassCatalog classCatalog, Class baseClass)
classCatalog
- is the catalog to hold shared class information and
for a database should be a StoredClassCatalog
.baseClass
- is the base class for serialized objects stored using
this binding -- all objects using this binding must be an instance of
this class.Method Detail |
public final Class getBaseClass()
public ClassLoader getClassLoader()
This method may be overriden to return a dynamically determined class
loader. For example,
Thread.currentThread().getContextClassLoader()
could be
called to use the context class loader for the curren thread. Or
getBaseClass().getClassLoader()
could be called to use the
class loader for the base class, assuming that a base class has been
specified.
If this method returns null, a default class loader will be used as
determined by the java.io.ObjectInputStream.resolveClass
method.
public Object entryToObject(DatabaseEntry entry)
objectToEntry(java.lang.Object, com.sleepycat.db.DatabaseEntry)
, since the fixed
serialization header is assumed to not be included in the input data.
SerialInput
is used to deserialize the object.
entryToObject
in interface EntryBinding
entry
- is the input serialized entry.
public void objectToEntry(Object object, DatabaseEntry entry)
entryToObject(com.sleepycat.db.DatabaseEntry)
method
must be used. SerialOutput
is used to serialize the object.
Note that this method sets the DatabaseEntry offset property to a non-zero value and the size property to a value less than the length of the byte array.
objectToEntry
in interface EntryBinding
object
- is the input deserialized object.entry
- is the output serialized entry.
IllegalArgumentException
- if the object is not an instance of the
base class for this binding.
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