org.melati.poem
Class RestrictedReferencePoemType

java.lang.Object
  org.melati.poem.BasePoemType<T>
      org.melati.poem.AtomPoemType<T>
          org.melati.poem.IntegerPoemType
              org.melati.poem.IndexPoemType
                  org.melati.poem.ReferencePoemType
                      org.melati.poem.RestrictedReferencePoemType

All Implemented Interfaces:

Cloneable, PoemType, SQLPoemType, SQLType

public class RestrictedReferencePoemType
extends ReferencePoemType

A pointer to a subset of a Table. Note this doesn't do quite what you'd expect, and can't unless it parses the selection's whereClause in order to determine what a valid value is, so use a simple where clause.

Field Summary

Fields inherited from class org.melati.poem.IntegerPoemType

nullableInstance

Fields inherited from class org.melati.poem.AtomPoemType

sqlTypeName

Fields inherited from class org.melati.poem.BasePoemType

nullable

Constructor Summary

RestrictedReferencePoemType(CachedSelection selection, boolean nullable)
Constructor.

Method Summary

protected Enumeration

_possibleRaws() Returns an Enumeration of the possible raw values.

Methods inherited from class org.melati.poem.ReferencePoemType

_assertValidCooked, _canRepresent, _cookedOfRaw, _rawOfCooked, _saveColumnInfo, _stringOfCooked, targetTable, toDsdType, toString

Methods inherited from class org.melati.poem.IntegerPoemType

_assertValidRaw, _getRaw, _rawOfString, _setRaw

Methods inherited from class org.melati.poem.AtomPoemType

_quotedRaw, _sqlDefinition, _stringOfRaw, _toString, sqlDefaultValue

Methods inherited from class org.melati.poem.BasePoemType

assertValidCooked, assertValidRaw, canRepresent, clone, cookedOfRaw, getLimitRaw, getLowRaw, getNullable, getRaw, possibleRaws, quotedRaw, rawOfCooked, rawOfString, saveColumnInfo, setRaw, setRawRange, sqlDefinition, sqlTypeCode, sqlTypeDefinition, stringOfCooked, stringOfRaw, withNullable

Methods inherited from class java.lang.Object

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

Constructor Detail

RestrictedReferencePoemType

public RestrictedReferencePoemType(CachedSelection selection,
                                   boolean nullable)

Constructor.

Parameters:

selection - a CachedSelection of that is the sub-set

nullable - whether instance may be null

Method Detail

_possibleRaws

protected Enumeration _possibleRaws()

Description copied from class: ReferencePoemType

Returns an Enumeration of the possible raw values.

In this case the troids of rows in the referenced table.

Overrides:

_possibleRaws in class ReferencePoemType