Package org.apache.cayenne.access.types

Interface ExtendedType<T>

All Known Implementing Classes:

BigDecimalType, BooleanType, ByteArrayType, ByteType, CalendarType, CharType, DateType, DoubleType, DurationType, EnumType, ExtendedEnumType, FloatType, GeoJsonType, IngresBooleanType, IntegerType, JsonType, LongType, ObjectType, OracleByteArrayType, OracleCharType, OracleUtilDateType, ShortType, TimestampType, TimeType, UtilDateType, VoidType, WktType

public interface ExtendedType<T>

Defines methods to read Java objects from JDBC ResultSets and write as parameters of PreparedStatements.

Field Summary

Fields

Modifier and Type	Field	Description
static int	TRIM_VALUES_THRESHOLD	Defines trimming constant for toString method that helps to limit logging of large values.

Method Summary

Modifier and Type	Method	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 scale)	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.

Field Detail

TRIM_VALUES_THRESHOLD

static final int TRIM_VALUES_THRESHOLD

Defines trimming constant for toString method that helps to limit logging of large values.

See Also:

Constant Field Values

Method Detail

getClassName

String getClassName()

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

setJdbcObject

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

Initializes a single parameter of a PreparedStatement with object value.

Throws:

Exception

materializeObject

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

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

Throws:

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

materializeObject

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

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

Throws:

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

toString

String toString(T value)

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

Parameters:

value - a value to convert to String.

Since:

4.0