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Java Source Code / Java Documentation » EJB Server JBoss 4.2.1 » server » org.jboss.ejb.plugins.cmp.jdbc

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Class Diagram

Java Document (Java Doc)

org.jboss.ejb.plugins.cmp.jdbc .Mapper

Mapper
public interface Mapper (Code)
	Generally, implementations of this interface map instances of one Java type into instances of another Java type. Mappers are used in cases when instances of "enum" types are used as CMP field values. In this case, a mapper represents a mediator and translates instances of "enum" to some id when that can be stored in a column when storing data and back from id to "enum" instance when data is loaded. author: Alex Loubyansky

Method Summary
Object	toColumnValue(Object fieldValue) This method is called when CMP field is stored.
Object	toFieldValue(Object columnValue) This method is called when CMP field is loaded. Parameters: columnValue - - loaded column value.

Method Detail

toColumnValue
Object toColumnValue(Object fieldValue)(Code)
	This method is called when CMP field is stored. Parameters: fieldValue - - CMP field value column value.

toFieldValue
Object toFieldValue(Object columnValue)(Code)
	This method is called when CMP field is loaded. Parameters: columnValue - - loaded column value. CMP field value.

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