JavaTypes (OpenJPA Parent POM 2.4.2 API)

java.lang.Object
- org.apache.openjpa.meta.JavaTypes

Direct Known Subclasses:

JavaSQLTypes
```
public class JavaTypes
extends Object
```
Type constants for managed fields.

Author:

Abe White

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`ARRAY`
`static int`	`BIGDECIMAL`
`static int`	`BIGINTEGER`
`static int`	`BOOLEAN`
`static int`	`BOOLEAN_OBJ`
`static int`	`BYTE`
`static int`	`BYTE_OBJ`
`static int`	`CALENDAR`
`static int`	`CHAR`
`static int`	`CHAR_OBJ`
`static int`	`COLLECTION`
`static int`	`DATE`
`static int`	`DOUBLE`
`static int`	`DOUBLE_OBJ`
`static int`	`ENUM`
`static int`	`FLOAT`
`static int`	`FLOAT_OBJ`
`static int`	`INPUT_READER`
`static int`	`INPUT_STREAM`
`static int`	`INT`
`static int`	`INT_OBJ`
`static int`	`LOCALE`
`static int`	`LONG`
`static int`	`LONG_OBJ`
`static int`	`MAP`
`static int`	`NUMBER`
`static int`	`OBJECT`
`static int`	`OID`
`static int`	`PC`
`static int`	`PC_UNTYPED`
`static int`	`SHORT`
`static int`	`SHORT_OBJ`
`static int`	`STRING`

Constructor Summary

Constructors
Constructor and Description

JavaTypes()

Constructors
Constructor and Description
`JavaTypes()`

Method Summary

Methods
Modifier and Type	Method and Description
`static Class<?>`	`classForName(String name, ClassMetaData context)` Check the given name against the same set of standard packages used when parsing metadata.
`static Class<?>`	`classForName(String name, ClassMetaData context, ClassLoader loader)` Check the given name against the same set of standard packages used when parsing metadata.
`static Class<?>`	`classForName(String name, ClassMetaData context, ClassLoader loader, boolean mustExist)` Check the given name against the same set of standard packages used when parsing metadata.
`static Class<?>`	`classForName(String name, ValueMetaData context)` Check the given name against the same set of standard packages used when parsing metadata.
`static Class<?>`	`classForName(String name, ValueMetaData context, ClassLoader loader)` Check the given name against the same set of standard packages used when parsing metadata.
`static Class<?>`	`classForName(String name, ValueMetaData context, ClassLoader loader, boolean mustExist)` Try to load a class using the provided loader.
`static Object`	`convert(Object val, int typeCode)` Convert the given object to the given type if possible.
`static int`	`getTypeCode(Class<?> type)` Return the field metadata type code for the given class.
`static boolean`	`isPrimitiveDefault(Object o, int typeCode)` Determine whether or not the provided Object value is the default for the provided typeCode.
`static boolean`	`maybePC(FieldMetaData field)` Return true if the (possibly unresolved) field or its elements might be persistence capable objects.
`static boolean`	`maybePC(ValueMetaData val)` Return true if the (possibly unresolved) value might be a first class object.
`static Object`	`toArray(Collection<?> coll, Class<?> elem)` Helper method to return the given collection as an array.
`static <T> List<T>`	`toList(Object val, Class<T> elem, boolean mutable)` Helper method to return the given array value as a collection.

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

- Field Detail
  - BOOLEAN
```
public static final int BOOLEAN
```
    See Also:
    Constant Field Values
  - BYTE
```
public static final int BYTE
```
    See Also:
    Constant Field Values
  - CHAR
```
public static final int CHAR
```
    See Also:
    Constant Field Values
  - DOUBLE
```
public static final int DOUBLE
```
    See Also:
    Constant Field Values
  - FLOAT
```
public static final int FLOAT
```
    See Also:
    Constant Field Values
  - INT
```
public static final int INT
```
    See Also:
    Constant Field Values
  - LONG
```
public static final int LONG
```
    See Also:
    Constant Field Values
  - SHORT
```
public static final int SHORT
```
    See Also:
    Constant Field Values
  - OBJECT
```
public static final int OBJECT
```
    See Also:
    Constant Field Values
  - STRING
```
public static final int STRING
```
    See Also:
    Constant Field Values
  - NUMBER
```
public static final int NUMBER
```
    See Also:
    Constant Field Values
  - ARRAY
```
public static final int ARRAY
```
    See Also:
    Constant Field Values
  - COLLECTION
```
public static final int COLLECTION
```
    See Also:
    Constant Field Values
  - MAP
```
public static final int MAP
```
    See Also:
    Constant Field Values
  - DATE
```
public static final int DATE
```
    See Also:
    Constant Field Values
  - PC
```
public static final int PC
```
    See Also:
    Constant Field Values
  - BOOLEAN_OBJ
```
public static final int BOOLEAN_OBJ
```
    See Also:
    Constant Field Values
  - BYTE_OBJ
```
public static final int BYTE_OBJ
```
    See Also:
    Constant Field Values
  - CHAR_OBJ
```
public static final int CHAR_OBJ
```
    See Also:
    Constant Field Values
  - DOUBLE_OBJ
```
public static final int DOUBLE_OBJ
```
    See Also:
    Constant Field Values
  - FLOAT_OBJ
```
public static final int FLOAT_OBJ
```
    See Also:
    Constant Field Values
  - INT_OBJ
```
public static final int INT_OBJ
```
    See Also:
    Constant Field Values
  - LONG_OBJ
```
public static final int LONG_OBJ
```
    See Also:
    Constant Field Values
  - SHORT_OBJ
```
public static final int SHORT_OBJ
```
    See Also:
    Constant Field Values
  - BIGDECIMAL
```
public static final int BIGDECIMAL
```
    See Also:
    Constant Field Values
  - BIGINTEGER
```
public static final int BIGINTEGER
```
    See Also:
    Constant Field Values
  - LOCALE
```
public static final int LOCALE
```
    See Also:
    Constant Field Values
  - PC_UNTYPED
```
public static final int PC_UNTYPED
```
    See Also:
    Constant Field Values
  - CALENDAR
```
public static final int CALENDAR
```
    See Also:
    Constant Field Values
  - OID
```
public static final int OID
```
    See Also:
    Constant Field Values
  - INPUT_STREAM
```
public static final int INPUT_STREAM
```
    See Also:
    Constant Field Values
  - INPUT_READER
```
public static final int INPUT_READER
```
    See Also:
    Constant Field Values
  - ENUM
```
public static final int ENUM
```
    See Also:
    Constant Field Values
- Constructor Detail
  - JavaTypes
```
public JavaTypes()
```
- Method Detail
  - getTypeCode
```
public static int getTypeCode(Class<?> type)
```
    Return the field metadata type code for the given class. First class objects are not recognized in this method.
  - classForName
```
public static Class<?> classForName(String name,
                    ClassMetaData context)
```
    Check the given name against the same set of standard packages used when parsing metadata.
  - classForName
```
public static Class<?> classForName(String name,
                    ClassMetaData context,
                    ClassLoader loader)
```
    Check the given name against the same set of standard packages used when parsing metadata.
  - classForName
```
public static Class<?> classForName(String name,
                    ClassMetaData context,
                    ClassLoader loader,
                    boolean mustExist)
```
    Check the given name against the same set of standard packages used when parsing metadata.
    
    Parameters:
    mustExist - Whether the supplied loader must be able to load the class. If true no attempt to use a different classloader will be made. If false the ClassResolver from the configuration will be used.
  - classForName
```
public static Class<?> classForName(String name,
                    ValueMetaData context)
```
    Check the given name against the same set of standard packages used when parsing metadata.
  - classForName
```
public static Class<?> classForName(String name,
                    ValueMetaData context,
                    ClassLoader loader)
```
    Check the given name against the same set of standard packages used when parsing metadata.
  - classForName
```
public static Class<?> classForName(String name,
                    ValueMetaData context,
                    ClassLoader loader,
                    boolean mustExist)
```
    Try to load a class using the provided loader. Optionally tries the configuration's ClassResolver if the supplied loader cannot find the class.
    
    Parameters:
    name - Name of the class to load.
    loader - ClassLoader to use. If null, the configuration's ClassResolver will be used.
    mustExist - Whether the supplied loader must be able to load the class. If true no attempt to use a different classloader will be made. If false the ClassResolver from the configuration will be used.
  - convert
```
public static Object convert(Object val,
             int typeCode)
```
    Convert the given object to the given type if possible. If the type is a numeric primitive, this method only guarantees that the return value is a Number. If no known conversion or the value is null, returns the original value.
  - maybePC
```
public static boolean maybePC(FieldMetaData field)
```
    Return true if the (possibly unresolved) field or its elements might be persistence capable objects.
  - maybePC
```
public static boolean maybePC(ValueMetaData val)
```
    Return true if the (possibly unresolved) value might be a first class object.
  - toList
```
public static <T> List<T> toList(Object val,
                 Class<T> elem,
                 boolean mutable)
```
    Helper method to return the given array value as a collection.
  - toArray
```
public static Object toArray(Collection<?> coll,
             Class<?> elem)
```
    Helper method to return the given collection as an array.
  - isPrimitiveDefault
```
public static boolean isPrimitiveDefault(Object o,
                         int typeCode)
```
    Determine whether or not the provided Object value is the default for the provided typeCode. For example: If o = Integer(0) and typeCode = JavaTypes.INT, this method will return true.

Class JavaTypes

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

BOOLEAN

BYTE

CHAR

DOUBLE

FLOAT

INT

LONG

SHORT

OBJECT

STRING

NUMBER

ARRAY

COLLECTION

MAP

DATE

PC

BOOLEAN_OBJ

BYTE_OBJ

CHAR_OBJ

DOUBLE_OBJ

FLOAT_OBJ

INT_OBJ

LONG_OBJ

SHORT_OBJ

BIGDECIMAL

BIGINTEGER

LOCALE

PC_UNTYPED

CALENDAR

OID

INPUT_STREAM

INPUT_READER

ENUM

Constructor Detail

JavaTypes

Method Detail

getTypeCode

classForName

classForName

classForName

classForName

classForName

classForName

convert

maybePC

maybePC

toList

toArray

isPrimitiveDefault