| org.axiondb.DataType
All known Subclasses: org.axiondb.types.VarBinaryType, org.axiondb.types.BaseDataType, org.axiondb.types.BigDecimalType, org.axiondb.types.CharacterType, org.axiondb.types.CharacterVaryingType,
| DataType | | public interface DataType extends Comparator,Serializable(Code) | | The type of a field (column) that can be stored in a
Table .
Responsible for
DataType.accepts testing that a value is assignable to fields of this
type, for
DataType.convert convertingObject Objects to this type, and for
DataType.read reading values from and
DataType.write writing values to a stream.
version:
$Revision: 1.14 $ $Date: 2005/05/02 22:17:47 $
author:
Rodney Waldhoff
author:
Rob Oxspring
author:
Chuck Burdick |
| Inner Class :public static interface NonFixedPrecision extends DataType | |
| Inner Class :public static interface ExactNumeric extends NonFixedPrecision | |
| Inner Class :public interface BinaryRepresentation extends DataType | |
| Method Summary | |
| boolean | accepts(Object value)
Return true if a field of my type can be assigned the given non-
null value , false otherwise. | | Object | convert(Object value)
Converts an
DataType.accepts acceptable value to one of the appropriate type. | | int | getColumnDisplaySize()
Value returned by
ResultSetMetaData.getColumnDisplaySize for this data
type. | | int | getJdbcType()
Returns the JDBC
java.sql.Types type code most closely matching this type. | | String | getLiteralPrefix()
| | String | getLiteralSuffix()
| | int | getNullableCode()
| | int | getPrecision()
Value returned by
ResultSetMetaData.getPrecision for this data type. | | int | getPrecisionRadix()
Indicates radix used to compute maximum number of significant digits for this
datatype, as returned by
DataType.getPrecision . | | String | getPreferredValueClassName()
Returns the "normal" type returned by
DataType.convert . | | int | getScale()
Value returned by
ResultSetMetaData.getScale for this data type. | | short | getSearchableCode()
Code indicating how much WHERE ... | | boolean | isCaseSensitive()
| | boolean | isCurrency()
| | boolean | isUnsigned()
| | DataType | makeNewInstance()
Creates a new instance of this DataType implementation. | | Object | read(DataInput in)
Instantiate an object of my type from the given
DataInput . | | Object | successor(Object value)
Returns the successor for the given value. | | boolean | supportsSuccessor()
Returns true if the
DataType.successor method is supported, false
otherwise. | | BigDecimal | toBigDecimal(Object value)
Convert the given non- null value to a
BigDecimal, or throw a
AxionException . | | BigInteger | toBigInteger(Object value)
Convert the given non- null value to a
BigInteger, or throw a
AxionException . | | Blob | toBlob(Object value)
Convert the given non- null value to a
Blob , or
throw a
AxionException . | | boolean | toBoolean(Object value)
Convert the given non- null value to a boolean,
or throw a
SQLException . | | byte | toByte(Object value)
Convert the given non- null value to a byte,
or throw a
SQLException . | | byte[] | toByteArray(Object value)
Convert the given non- null value to a byte[],
or throw a
AxionException . | | Clob | toClob(Object value)
Convert the given non- null value to a
Clob , or
throw a
AxionException . | | Date | toDate(Object value)
Convert the given non- null value to a
java.sql.Date ,
or throw a
SQLException . | | double | toDouble(Object value)
Convert the given non- null value to a double,
or throw a
AxionException . | | float | toFloat(Object value)
Convert the given non- null value to a float,
or throw a
AxionException . | | int | toInt(Object value)
Convert the given non- null value to a int,
or throw a
AxionException . | | long | toLong(Object value)
Convert the given non- null value to a long,
or throw a
AxionException . | | short | toShort(Object value)
Convert the given non- null value to a short,
or throw a
AxionException . | | String | toString(Object value)
Convert the given non- null value to a
String , or
throw a
AxionException . | | Time | toTime(Object value)
Convert the given non- null value to a
Time , or
throw a
AxionException . | | Timestamp | toTimestamp(Object value)
Convert the given non- null value to a
Timestamp ,
or throw a
AxionException . | | URL | toURL(Object value)
Convert the given non- null value to a
URL , or
throw a
AxionException . | | void | write(Object value, DataOutput out)
Write an object of my type to the given
DataOutput . |
| accepts | | boolean accepts(Object value)(Code) | | Return true if a field of my type can be assigned the given non-
null value , false otherwise.
Parameters:
value - non- null value |
| getJdbcType | | int getJdbcType()(Code) | | Returns the JDBC
java.sql.Types type code most closely matching this type.
|
| getPrecisionRadix | | int getPrecisionRadix()(Code) | | Indicates radix used to compute maximum number of significant digits for this
datatype, as returned by
DataType.getPrecision .
radix used to compute value of DataType.getPrecision, typically 2 or 10. |
| makeNewInstance | | DataType makeNewInstance()(Code) | | Creates a new instance of this DataType implementation.
new instance of this DataType implementation. |
| supportsSuccessor | | boolean supportsSuccessor()(Code) | | Returns true if the
DataType.successor method is supported, false
otherwise.
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