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public interface TypeHandler4
handles reading, writing, deleting, defragmenting and
comparisons for types of objects.
Custom Typehandlers can be implemented to alter the default
behaviour of storing all non-transient fields of an object.
Configuration#registerTypeHandler(com.db4o.typehandlers.TypeHandlerPredicate, TypeHandler4)}
Method Summary | |
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void |
defragment(com.db4o.internal.DefragmentContext context)
gets called when an object gets defragmented. |
void |
delete(com.db4o.internal.delete.DeleteContext context)
gets called when an object gets deleted. |
java.lang.Object |
read(ReadContext context)
gets called when an object is read from the database. |
void |
write(WriteContext context,
java.lang.Object obj)
gets called when an object is to be written to the database. |
Methods inherited from interface com.db4o.internal.Comparable4 |
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prepareComparison |
Method Detail |
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void delete(com.db4o.internal.delete.DeleteContext context) throws Db4oIOException
context
-
Db4oIOException
void defragment(com.db4o.internal.DefragmentContext context)
context
- java.lang.Object read(ReadContext context)
context
-
void write(WriteContext context, java.lang.Object obj)
context
- obj
- the object
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