org.apache.cayenne.access.types

Class EnumType<T extends Enum<T>>

java.lang.Object

org.apache.cayenne.access.types.EnumType<T>

All Implemented Interfaces:

ExtendedType<T>

public class EnumType<T extends Enum<T>>
extends Object
implements ExtendedType<T>

An ExtendedType that handles an enum class. If Enum is mapped to a character column, its name is used as persistent value; if it is mapped to a numeric column, its ordinal (i.e. a position in enum class) is used.

Since:

1.2

Field Summary

Fields

Modifier and Type	Field and Description
protected String	canonicalName
protected Class<T>	enumClass
protected T[]	values

Fields inherited from interface org.apache.cayenne.access.types.ExtendedType

TRIM_VALUES_THRESHOLD

Constructor Summary

Constructors

Constructor and Description
EnumType(Class<T> enumClass)

Method Summary

Modifier and Type	Method and Description
String	getClassName() Returns a full name of Java class that this ExtendedType supports.
T	materializeObject(CallableStatement rs, int index, int type) Reads an object from a stored procedure OUT parameter, converting it to class returned by 'getClassName' method.
T	materializeObject(ResultSet rs, int index, int type) Reads an object from JDBC ResultSet column, converting it to class returned by 'getClassName' method.
void	setJdbcObject(PreparedStatement statement, T value, int pos, int type, int precision) Initializes a single parameter of a PreparedStatement with object value.
String	toString(T value) Converts value of the supported type to a human-readable String representation.

Methods inherited from class java.lang.Object

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

Field Detail

enumClass

protected Class<T extends Enum<T>> enumClass

values

protected T extends Enum<T>[] values

canonicalName

protected String canonicalName

Constructor Detail

EnumType

public EnumType(Class<T> enumClass)

Method Detail

getClassName

public String getClassName()

Description copied from interface: ExtendedType

Returns a full name of Java class that this ExtendedType supports.

Specified by:

getClassName in interface ExtendedType<T extends Enum<T>>

setJdbcObject

public void setJdbcObject(PreparedStatement statement,
                          T value,
                          int pos,
                          int type,
                          int precision)
                   throws Exception

Description copied from interface: ExtendedType

Initializes a single parameter of a PreparedStatement with object value.

Specified by:

setJdbcObject in interface ExtendedType<T extends Enum<T>>

Throws:

Exception

materializeObject

public T materializeObject(ResultSet rs,
                           int index,
                           int type)
                    throws Exception

Description copied from interface: ExtendedType

Reads an object from JDBC ResultSet column, converting it to class returned by 'getClassName' method.

Specified by:

materializeObject in interface ExtendedType<T extends Enum<T>>

Throws:

Exception - if read error occurred, or an object can't be converted to a target Java class.

materializeObject

public T materializeObject(CallableStatement rs,
                           int index,
                           int type)
                    throws Exception

Description copied from interface: ExtendedType

Reads an object from a stored procedure OUT parameter, converting it to class returned by 'getClassName' method.

Specified by:

materializeObject in interface ExtendedType<T extends Enum<T>>

Throws:

Exception - if read error occurred, or an object can't be converted to a target Java class.

toString

public String toString(T value)

Description copied from interface: ExtendedType

Converts value of the supported type to a human-readable String representation.

Specified by:

toString in interface ExtendedType<T extends Enum<T>>

Parameters:

value - a value to convert to String.