org.exolab.castor.persist
Class FieldMolder
java.lang.Object
org.exolab.castor.persist.FieldMolder
public class FieldMolder
- extends java.lang.Object
FieldMolder represents a field of a data object class. It is used by
ClassMolder to set and get the value from a field of a data object.
- Author:
- Thomas Yip
Method Summary |
void |
addValue(java.lang.Object object,
java.lang.Object value,
java.lang.ClassLoader loader)
|
static java.lang.reflect.Method |
findAccessor(java.lang.Class javaClass,
java.lang.String methodName,
java.lang.Class fieldType,
boolean getMethod)
Returns the named accessor. |
java.lang.Class |
getCollectionType()
|
protected java.lang.Class |
getCollectionType(java.lang.String coll,
boolean lazy)
|
java.lang.String |
getComparator()
Returns the java.util.Comparator instance to be used with SortedSets; null, if not specified. |
ClassMolder |
getEnclosingClassMolder()
|
ClassMolder |
getFieldClassMolder()
|
LockEngine |
getFieldLockEngine()
|
short |
getFieldType()
|
java.lang.String |
getName()
|
SQLRelationLoader |
getRelationLoader()
|
java.lang.Object |
getValue(java.lang.Object object,
java.lang.ClassLoader loader)
|
boolean |
isAddable()
|
boolean |
isCheckDirty()
|
boolean |
isDefault(java.lang.Object value)
Check if the specified value is the default value of the Field
represented by this FieldMolder. |
boolean |
isDependent()
|
boolean |
isLazy()
|
boolean |
isManyToMany()
|
boolean |
isMulti()
|
boolean |
isPersistanceCapable()
|
boolean |
isReadonly()
|
boolean |
isSerializable()
|
boolean |
isStored()
|
boolean |
isTransient()
|
(package private) void |
setFieldClassMolder(ClassMolder fMold)
|
void |
setValue(java.lang.Object object,
java.lang.Object value,
java.lang.ClassLoader loader)
|
java.lang.String |
toString()
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
PRIMITIVE
public static final short PRIMITIVE
- See Also:
- Constant Field Values
SERIALIZABLE
public static final short SERIALIZABLE
- See Also:
- Constant Field Values
PERSISTANCECAPABLE
public static final short PERSISTANCECAPABLE
- See Also:
- Constant Field Values
ONE_TO_MANY
public static final short ONE_TO_MANY
- See Also:
- Constant Field Values
MANY_TO_MANY
public static final short MANY_TO_MANY
- See Also:
- Constant Field Values
FieldMolder
public FieldMolder(DatingService ds,
ClassMolder eMold,
FieldMapping fieldMap,
SQLRelationLoader loader)
throws MappingException
- Creates a single field descriptor. The field mapping is used to
create a new stock
FieldMolder
. Implementations may
extend this class to create a more suitable descriptor.
- Parameters:
eMold
- The ClassMolder to which the field belongsfieldMap
- The field mapping information
- Throws:
MappingException
- The field or its accessor methods are not
found, not accessible, not of the specified type, etc
FieldMolder
public FieldMolder(DatingService ds,
ClassMolder eMold,
FieldMapping fieldMap)
throws MappingException
- Throws:
MappingException
toString
public java.lang.String toString()
- Overrides:
toString
in class java.lang.Object
getName
public java.lang.String getName()
getComparator
public java.lang.String getComparator()
- Returns the java.util.Comparator instance to be used with SortedSets; null, if not specified.
- Returns:
- the java.util.Comparator instance to be used with SortedSets
getFieldType
public short getFieldType()
getRelationLoader
public SQLRelationLoader getRelationLoader()
isStored
public boolean isStored()
isManyToMany
public boolean isManyToMany()
isDependent
public boolean isDependent()
isMulti
public boolean isMulti()
isPersistanceCapable
public boolean isPersistanceCapable()
isSerializable
public boolean isSerializable()
isCheckDirty
public boolean isCheckDirty()
isLazy
public boolean isLazy()
isAddable
public boolean isAddable()
isTransient
public boolean isTransient()
setFieldClassMolder
void setFieldClassMolder(ClassMolder fMold)
getEnclosingClassMolder
public ClassMolder getEnclosingClassMolder()
getFieldClassMolder
public ClassMolder getFieldClassMolder()
getFieldLockEngine
public LockEngine getFieldLockEngine()
isReadonly
public boolean isReadonly()
getCollectionType
public java.lang.Class getCollectionType()
getValue
public java.lang.Object getValue(java.lang.Object object,
java.lang.ClassLoader loader)
addValue
public void addValue(java.lang.Object object,
java.lang.Object value,
java.lang.ClassLoader loader)
setValue
public void setValue(java.lang.Object object,
java.lang.Object value,
java.lang.ClassLoader loader)
isDefault
public boolean isDefault(java.lang.Object value)
- Check if the specified value is the default value of the Field
represented by this FieldMolder.
getCollectionType
protected java.lang.Class getCollectionType(java.lang.String coll,
boolean lazy)
findAccessor
public static final java.lang.reflect.Method findAccessor(java.lang.Class javaClass,
java.lang.String methodName,
java.lang.Class fieldType,
boolean getMethod)
throws MappingException
- Returns the named accessor. Uses reflection to return the named accessor and
check the return value or parameter type, if specified.
- Parameters:
javaClass
- The class to which the field belongs.methodName
- The name of the accessor method.fieldType
- The type of the field if known, or null.getMethod
- True if get method, false if set method.
- Returns:
- The method, null if not found.
- Throws:
MappingException
- The method is not accessible or is not of the
specified type.
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