java.lang.Object
- com.sun.jdo.spi.persistence.support.sqlstore.model.FieldDesc

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

ForeignFieldDesc, LocalFieldDesc
```
public abstract class FieldDesc
extends Object
implements Serializable
```
See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`int`	`absoluteID`
`protected ClassDesc`	`classDesc`	Back pointer to declaring class descriptor.
`int`	`concurrencyGroup`
`int`	`fetchGroup`
`static int`	`GROUP_DEFAULT`
`static int`	`GROUP_NONE`
`protected static Logger`	`logger`	The logger.
`protected static ResourceBundle`	`messages`	I18N message handler.
`static int`	`PROP_FOREIGN_KEY_FIELD`	This field is part of a foreign key.
`static int`	`PROP_IN_CONCURRENCY_CHECK`	This field is used for concurrency check
`static int`	`PROP_LOG_ON_UPDATE`	Update before image when this field is updated.
`static int`	`PROP_PRIMARY_KEY_FIELD`	This field is part of a primary key.
`static int`	`PROP_PRIMARY_TRACKED_FIELD`	This field is the primary tracked field.
`static int`	`PROP_READ_ONLY`	This field is read only
`static int`	`PROP_RECORD_ON_UPDATE`	Record updates on this field to DB.
`static int`	`PROP_REF_INTEGRITY_UPDATES`	Relationship updates are processed from the side containing this field.
`static int`	`PROP_SECONDARY_TRACKED_FIELD`	This field is a secondary tracked field.
`static int`	`PROP_TRACK_RELATIONSHIP_FIELD`	This field tracks a relationship field.
`static int`	`PROP_VERSION_FIELD`	This field is used for version consistency validation.
`int`	`sqlProperties`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`addTrackedField(FieldDesc f)`
`Object`	`convertValue(Object value, StateManager sm)`
`Object`	`createSCO(Object value, StateManager sm)`	Creates a new SCO instance.
`static Character`	`getCharFromString(String str)`
`Class`	`getComponentType()`
`Class`	`getDeclaringClass()`
`int`	`getEnumType()`
`String`	`getName()`
`ArrayList`	`getTrackedFields()`
`Class`	`getType()`
`Object`	`getValue(StateManager sm)`
`boolean`	`isForeignKeyField()`	Returns true if this field is a foreign key field.
`boolean`	`isKeyField()`	Returns true if this field is a primary key field.
`boolean`	`isRelationshipField()`	Returns true if this field is a relationship field.
`protected void`	`setupDesc(Field f)`
`void`	`setValue(StateManager sm, Object value)`
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - GROUP_DEFAULT
```
public static final int GROUP_DEFAULT
```
    See Also:
    
    Constant Field Values
  - GROUP_NONE
```
public static final int GROUP_NONE
```
    See Also:
    
    Constant Field Values
  - PROP_IN_CONCURRENCY_CHECK
```
public static final int PROP_IN_CONCURRENCY_CHECK
```
    This field is used for concurrency check
    
    See Also:
    
    Constant Field Values
  - PROP_LOG_ON_UPDATE
```
public static final int PROP_LOG_ON_UPDATE
```
    Update before image when this field is updated. This property is always set
    
    See Also:
    
    Constant Field Values
  - PROP_READ_ONLY
```
public static final int PROP_READ_ONLY
```
    This field is read only
    
    See Also:
    
    Constant Field Values
  - PROP_RECORD_ON_UPDATE
```
public static final int PROP_RECORD_ON_UPDATE
```
    Record updates on this field to DB. This property is always set for primitive fields.
    
    See Also:
    
    Constant Field Values
  - PROP_REF_INTEGRITY_UPDATES
```
public static final int PROP_REF_INTEGRITY_UPDATES
```
    Relationship updates are processed from the side containing this field.
    
    See Also:
    
    Constant Field Values
  - PROP_PRIMARY_TRACKED_FIELD
```
public static final int PROP_PRIMARY_TRACKED_FIELD
```
    This field is the primary tracked field.
    Primitive fields track each other if they are mapped to same columns. One of them is made the primary tracked field as per precedence rules on the field types. This field is used to bind values to columns while updating the database.
    RESOLVE: Investigate the runtime behaviour for relationship fields marked primary.
    
    See Also:
    
    PROP_SECONDARY_TRACKED_FIELD, ClassDesc.computeTrackedPrimitiveFields(), ClassDesc.computeTrackedRelationshipFields(), Constant Field Values
  - PROP_SECONDARY_TRACKED_FIELD
```
public static final int PROP_SECONDARY_TRACKED_FIELD
```
    This field is a secondary tracked field.
    Seconday tracked primitive fields are not used for updates to the database or for concurrency checking.
    RESOLVE: Investigate the runtime behaviour for secondary tracked relationship fields.
    
    See Also:
    
    PROP_PRIMARY_TRACKED_FIELD, ClassDesc.computeTrackedPrimitiveFields(), ClassDesc.computeTrackedRelationshipFields(), Constant Field Values
  - PROP_TRACK_RELATIONSHIP_FIELD
```
public static final int PROP_TRACK_RELATIONSHIP_FIELD
```
    This field tracks a relationship field. Only primitive fields can have this property set.
    
    See Also:
    
    Constant Field Values
  - PROP_PRIMARY_KEY_FIELD
```
public static final int PROP_PRIMARY_KEY_FIELD
```
    This field is part of a primary key.
    
    See Also:
    
    Constant Field Values
  - PROP_VERSION_FIELD
```
public static final int PROP_VERSION_FIELD
```
    This field is used for version consistency validation.
    
    See Also:
    
    Constant Field Values
  - PROP_FOREIGN_KEY_FIELD
```
public static final int PROP_FOREIGN_KEY_FIELD
```
    This field is part of a foreign key.
    
    See Also:
    
    Constant Field Values
  - absoluteID
```
public int absoluteID
```
  - fetchGroup
```
public int fetchGroup
```
  - concurrencyGroup
```
public int concurrencyGroup
```
  - sqlProperties
```
public int sqlProperties
```
  - classDesc
```
protected final ClassDesc classDesc
```
    Back pointer to declaring class descriptor.
  - logger
```
protected static final Logger logger
```
    The logger.
  - messages
```
protected static final ResourceBundle messages
```
    I18N message handler.
- Method Detail
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - getComponentType
```
public Class getComponentType()
```
  - getDeclaringClass
```
public Class getDeclaringClass()
```
  - getType
```
public Class getType()
```
  - getEnumType
```
public int getEnumType()
```
  - getName
```
public String getName()
```
  - getValue
```
public Object getValue(StateManager sm)
```
  - setValue
```
public void setValue(StateManager sm,
                     Object value)
```
  - getTrackedFields
```
public ArrayList getTrackedFields()
```
  - isKeyField
```
public boolean isKeyField()
```
    Returns true if this field is a primary key field.
  - isForeignKeyField
```
public boolean isForeignKeyField()
```
    Returns true if this field is a foreign key field.
  - isRelationshipField
```
public boolean isRelationshipField()
```
    Returns true if this field is a relationship field.
  - convertValue
```
public Object convertValue(Object value,
                           StateManager sm)
```
  - createSCO
```
public Object createSCO(Object value,
                        StateManager sm)
```
    Creates a new SCO instance. Therefore checks if PersistenceManager settings require SCO creation. SCOs will typically be created in a non managed environment.
    
    Parameters:
    
    value - Value being converted.
    
    sm - StateManager of the persistent object being bound.
    
    Returns:
    
    New SCO instance according to enumFieldType of this field. Returns null if no SCO was created.
  - getCharFromString
```
public static Character getCharFromString(String str)
```
  - setupDesc
```
protected void setupDesc(Field f)
```
  - addTrackedField
```
protected void addTrackedField(FieldDesc f)
```

Class FieldDesc

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

GROUP_DEFAULT

GROUP_NONE

PROP_IN_CONCURRENCY_CHECK

PROP_LOG_ON_UPDATE

PROP_READ_ONLY

PROP_RECORD_ON_UPDATE

PROP_REF_INTEGRITY_UPDATES

PROP_PRIMARY_TRACKED_FIELD

PROP_SECONDARY_TRACKED_FIELD

PROP_TRACK_RELATIONSHIP_FIELD

PROP_PRIMARY_KEY_FIELD

PROP_VERSION_FIELD

PROP_FOREIGN_KEY_FIELD

absoluteID

fetchGroup

concurrencyGroup

sqlProperties

classDesc

logger

messages

Method Detail

toString

getComponentType

getDeclaringClass

getType

getEnumType

getName

getValue

setValue

getTrackedFields

isKeyField

isForeignKeyField

isRelationshipField

convertValue

createSCO

getCharFromString

setupDesc

addTrackedField