Classes
class	TypeInfo
Static Public Member Functions
static Class	typeFromName (ClassLoader loader, String typeName) throws ClassNotFoundException
static Object	getDefault (Class type)
static Class	typeFromPrimitive (Class type)
static boolean	isSimpleType (Class type)
static boolean	isPrimitiveType (Class type)
static Object	newInstance (Class type) throws IllegalStateException
static Object	newInstance (Class type, Object args[]) throws IllegalStateException
static boolean	isConstructable (Class type)
static boolean	isConstructable (Class type, boolean allowAbstractOrInterface)
static boolean	isSerializable (Class type)
static boolean	isImmutable (Class type)
static boolean	isCloneable (Class type)
static String	getFullDatePattern (String pattern)
Static Package Attributes
static TypeInfo[]	_typeInfos

Detailed Description

Type information. Can be used to map between short type names (such as 'int') and actual Java types (java.lang.Integer), to determine whether a type is simple (i.e. maps to a single XML attribute, SQL column, etc), as well as to create a new instance of a type.

Author:: Assaf Arkin

Version:

Revision:: 1.6

Date:: 2004/11/26 09:07:49

Member Function Documentation

static Object org.exolab.castor.mapping.loader.Types.getDefault ( Class type ) [static]

Returns the default value for this Java type (e.g. 0 for integer, empty string) or null if no default value is known. The default value only applies to primitive types (that is, Integer.TYPE but not java.lang.Integer).

Parameters:

type

The Java type

Returns:: The default value or null

References org.exolab.castor.mapping.loader.Types._typeInfos.

static String org.exolab.castor.mapping.loader.Types.getFullDatePattern ( String pattern ) [static]

Transforms short date format pattern into full format pattern for SimpleDateFormat (e.g., "YMD" to "yyyyMMdd").

Parameters:

pattern

The short pattern

Returns:: The full pattern

static boolean org.exolab.castor.mapping.loader.Types.isCloneable ( Class type ) [static]

Returns true if the Java type implements the Cloneable interface.

Parameters:

type

The Java type

Returns:: True if declared as cloneable

static boolean org.exolab.castor.mapping.loader.Types.isConstructable ( Class type ) [static]

Returns true if the objects of this class are constructable. The class must be publicly available and have a default public constructor.

Parameters:

type

The Java type

Returns:: True if constructable

static boolean org.exolab.castor.mapping.loader.Types.isConstructable	(	Class	type,
		boolean	allowAbstractOrInterface
	)			`[static]`

Returns true if the objects of this class are constructable. The class must be publicly available and have a default public constructor.

Parameters:

type

The Java type

Returns:: True if constructable

static boolean org.exolab.castor.mapping.loader.Types.isImmutable ( Class type ) [static]

Returns true if the Java type is immutable. Immutable objects are not copied.

Parameters:

type

The Java type

Returns:: True if immutable type

References org.exolab.castor.mapping.loader.Types._typeInfos.

static boolean org.exolab.castor.mapping.loader.Types.isPrimitiveType ( Class type ) [static]

Returns true if the Java type is represented as a primitive type. Wrapper like java.lang.Integer are considered as primitive.

Parameters:

type

The Java type

Returns:: True if a primitive type

References org.exolab.castor.mapping.loader.Types._typeInfos.

static boolean org.exolab.castor.mapping.loader.Types.isSerializable ( Class type ) [static]

Returns true if the Java type implements the Serializable interface.

Parameters:

type

The Java type

Returns:: True if declared as serializable

static boolean org.exolab.castor.mapping.loader.Types.isSimpleType ( Class type ) [static]

Returns true if the Java type is represented as a simple type. A simple can be described with a single XML attribute value, a single SQL column, a single LDAP attribute value, etc. The following types are considered simple:

All primitive types
String
Date
java.sql.Date
java.sql.Time
Timestamp
byte/char arrays
BigDecimal

Parameters:

type

The Java type

Returns:: True if a simple type

References org.exolab.castor.mapping.loader.Types._typeInfos.

static Object org.exolab.castor.mapping.loader.Types.newInstance	(	Class	type,
		Object	args[]
	)			throws IllegalStateException `[static]`

Constructs a new object from the given class. Does not generate any checked exceptions, since object creation has been proven to work when creating descriptor from mapping.

Exceptions:

IllegalStateException

The Java object cannot be constructed

References org.exolab.castor.mapping.loader.Types.newInstance().

static Object org.exolab.castor.mapping.loader.Types.newInstance ( Class type ) throws IllegalStateException [static]

Constructs a new object from the given class. Does not generate any checked exceptions, since object creation has been proven to work when creating descriptor from mapping.

Exceptions:

IllegalStateException

The Java object cannot be constructed

Referenced by org.exolab.castor.mapping.loader.Types.newInstance().

static Class org.exolab.castor.mapping.loader.Types.typeFromName	(	ClassLoader	loader,
		String	typeName
	)			throws ClassNotFoundException `[static]`

Returns the class name based on the supplied type name. The type name can be a short name (e.g. int, byte) or any other Java class (e.g. myapp.Product). If a short type name is used, the primitive type might be returned. If a Java class name is used, the class will be loaded and returned through the supplied class loader.

Parameters:

	loader	The class loader to use, may be null
	typeName	The type name

Returns:: The type class

Exceptions:

ClassNotFoundException

The specified class could not be found

References org.exolab.castor.mapping.loader.Types._typeInfos.

static Class org.exolab.castor.mapping.loader.Types.typeFromPrimitive ( Class type ) [static]

Maps from a primitive Java type to a Java class. Returns the same class if type is not a primitive. The following conversion applies:

 From            To
 --------------  ---------------
 Boolean.TYPE    Boolean.class
 Byte.TYPE       Byte.class
 Character.TYPE  Character.class
 Short.TYPE      Short.class
 Integer.TYPE    Integer.class
 Long.TYPE       Long.class
 Float.TYPE      Float.class
 Double.TYPE     Double.class

Parameters:

type

The Java type (primitive or not)