com.samskivert.jdbc.depot.clause
Class FieldOverride

java.lang.Object
  com.samskivert.jdbc.depot.clause.QueryClause
      com.samskivert.jdbc.depot.clause.FieldDefinition
          com.samskivert.jdbc.depot.clause.FieldOverride

All Implemented Interfaces:

SQLExpression

public class FieldOverride
extends FieldDefinition

Redirects one field of the persistent object we're creating from its default associated column to a general SQLExpression. Thus the select portion of a query can include a reference to a different column in a different table through a ColumnExp, or a literal expression such as COUNT(*) through a LiteralExp.

Field Summary

Fields inherited from class com.samskivert.jdbc.depot.clause.FieldDefinition

_definition, _field

Constructor Summary

FieldOverride(String field, Class<? extends PersistentRecord> pClass, String pCol)

FieldOverride(String field, SQLExpression override)

FieldOverride(String field, String str)

Method Summary

Methods inherited from class com.samskivert.jdbc.depot.clause.FieldDefinition

accept, addClasses, getDefinition, getField

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FieldOverride

public FieldOverride(String field,
                     String str)

FieldOverride

public FieldOverride(String field,
                     Class<? extends PersistentRecord> pClass,
                     String pCol)

FieldOverride

public FieldOverride(String field,
                     SQLExpression override)