org.tranql.field
Interface FieldTransform

All Superinterfaces:

java.io.Serializable

All Known Subinterfaces:

QueryBinding

All Known Implementing Classes:

CacheRowAccessor, DomainIdentityAccessor, EJBLocalObjectAsIdTransform, EJBObjectAsIdTransform, FieldAccessor, FieldMarshaller, GlobalIdentityAccessor, IdAsEJBLocalObjectTransform, IdAsEJBObjectTransform, IdentityExtractorAccessor, ModifiedSlotAccessor, ModifiedSlotDetector, NestedRowAccessor, NotNullAccessor, NullAccessor, QueryBindingImpl, ReferenceAccessor, UnderConstructionSlotDetector

public interface FieldTransform
extends java.io.Serializable

Transform that converts values being loaded or stored into the cache.

Version:

$Revision: 45 $ $Date: 2004-04-20 00:23:20 +0200 (Tue, 20 Apr 2004) $

Method Summary

java.lang.Object	get(Row row) Return a value from the cache
java.lang.Class	getFieldClass() Return the Java Class that will be returned by fetch and that should be passed to set.
void	set(Row row, java.lang.Object value) Set a value into the cache

Method Detail

getFieldClass

java.lang.Class getFieldClass()

Return the Java Class that will be returned by fetch and that should be passed to set.

Returns:

the Java Class for this field

get

java.lang.Object get(Row row)
                     throws FieldTransformException

Return a value from the cache

Parameters:

row - the row to fetch from

Returns:

the transformed value

Throws:

FieldTransformException

set

void set(Row row,
         java.lang.Object value)
         throws FieldTransformException

Set a value into the cache

Parameters:

row - the row to store the value into

value - the value to be transformed

Throws:

FieldTransformException