org.axiondb.types

Class UnsignedIntegerType

java.lang.Object

org.axiondb.types.BaseDataType

org.axiondb.types.BaseNumberDataType

org.axiondb.types.UnsignedIntegerType

All Implemented Interfaces:

java.io.Serializable, java.util.Comparator, DataType, DataTypeFactory

public class UnsignedIntegerType
extends BaseNumberDataType

A DataTyperepresenting a unsigned integer value as a long.

Version:

$Revision: 1.10 $ $Date: 2005/05/02 22:29:40 $

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.axiondb.DataType

DataType.BinaryRepresentation, DataType.ExactNumeric, DataType.NonFixedPrecision

Constructor Summary

Constructors

Constructor and Description
UnsignedIntegerType()

Method Summary

Modifier and Type	Method and Description
boolean	accepts(java.lang.Object value) Returns true iff value is String that can be convertedwithout exception, null, or a Number.
java.lang.Object	convert(java.lang.Object value) Returns an Long converted from the given value , or throws IllegalArgumentExceptionif the given value isn't acceptable.
int	getColumnDisplaySize() Value returned by ResultSetMetaData#getColumnDisplaySizefor this data type.
int	getJdbcType() Returns the JDBC type codemost closely matching this type.
int	getPrecision() Value returned by ResultSetMetaData#getPrecisionfor this data type.
java.lang.String	getPreferredValueClassName() Returns the "normal" type returned by DataType.convert(java.lang.Object).
boolean	isUnsigned() For numeric types, indicates whether type stores only non-negative (>= 0) values
DataType	makeNewInstance() Creates a new instance of this DataType implementation.
java.lang.Object	read(java.io.DataInput in) Instantiate an object of my type from the given DataInput.
java.lang.Object	successor(java.lang.Object value) Returns the successor for the given value.
java.lang.String	toString()
void	write(java.lang.Object value, java.io.DataOutput out) Writes the given value to the given DataOutput.

Methods inherited from class org.axiondb.types.BaseNumberDataType

supportsSuccessor, toNumber

Methods inherited from class org.axiondb.types.BaseDataType

compare, getComparator, getLiteralPrefix, getLiteralSuffix, getNullableCode, getPrecisionRadix, getScale, getSearchableCode, isCaseSensitive, isCurrency, toBigDecimal, toBigInteger, toBlob, toBoolean, toByte, toByteArray, toClob, toDate, toDouble, toFloat, toInt, toLong, toShort, toString, toTime, toTimestamp, toURL

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

UnsignedIntegerType

public UnsignedIntegerType()

Method Detail

getJdbcType

public int getJdbcType()

Description copied from interface: DataType

Returns the JDBC type codemost closely matching this type.

Specified by:

getJdbcType in interface DataType

Specified by:

getJdbcType in class BaseDataType

getPreferredValueClassName

public java.lang.String getPreferredValueClassName()

Description copied from interface: DataType

Returns the "normal" type returned by DataType.convert(java.lang.Object). Returns java.lang.Object if unknown.

Specified by:

getPreferredValueClassName in interface DataType

Overrides:

getPreferredValueClassName in class BaseDataType

See Also:

AxionResultSetMetaData.getColumnClassName(int)

getPrecision

public int getPrecision()

Description copied from interface: DataType

Value returned by ResultSetMetaData#getPrecisionfor this data type.

Specified by:

getPrecision in interface DataType

Overrides:

getPrecision in class BaseDataType

See Also:

ResultSetMetaData.getPrecision(int)

getColumnDisplaySize

public int getColumnDisplaySize()

Description copied from interface: DataType

Value returned by ResultSetMetaData#getColumnDisplaySizefor this data type.

Specified by:

getColumnDisplaySize in interface DataType

Overrides:

getColumnDisplaySize in class BaseDataType

See Also:

ResultSetMetaData.getColumnDisplaySize(int)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

accepts

public boolean accepts(java.lang.Object value)

Description copied from class: BaseNumberDataType

Returns true iff value is String that can be convertedwithout exception, null, or a Number.

Specified by:

accepts in interface DataType

Overrides:

accepts in class BaseNumberDataType

Parameters:

value - non- null value

convert

public java.lang.Object convert(java.lang.Object value)
                         throws AxionException

Returns an Long converted from the given value , or throws IllegalArgumentExceptionif the given value isn't acceptable.

Specified by:

convert in interface DataType

Overrides:

convert in class BaseNumberDataType

Throws:

AxionException

successor

public java.lang.Object successor(java.lang.Object value)
                           throws java.lang.IllegalArgumentException

Description copied from interface: DataType

Returns the successor for the given value. For example, the successor of the integer 1 is 2.

Specified by:

successor in interface DataType

Overrides:

successor in class BaseDataType

Throws:

java.lang.IllegalArgumentException

read

public java.lang.Object read(java.io.DataInput in)
                      throws java.io.IOException

Description copied from interface: DataType

Instantiate an object of my type from the given DataInput. The next sequence of bytes to be read from the DataInput will have been written by DataType.write(java.lang.Object, java.io.DataOutput).

Specified by:

read in interface DataType

Specified by:

read in class BaseDataType

Throws:

java.io.IOException

See Also:

write(java.lang.Object, java.io.DataOutput)

write

public void write(java.lang.Object value,
                  java.io.DataOutput out)
           throws java.io.IOException

Writes the given value to the given DataOutput. Null values are written as MIN_VALUE, false.MIN_VALUE values are written as MIN_VALUE,true. All other values are written directly.

Specified by:

write in interface DataType

Specified by:

write in class BaseDataType

Parameters:

value - the value to write, which must be acceptable

Throws:

java.io.IOException

makeNewInstance

public DataType makeNewInstance()

Description copied from interface: DataType

Creates a new instance of this DataType implementation.

Specified by:

makeNewInstance in interface DataType

Specified by:

makeNewInstance in interface DataTypeFactory

Specified by:

makeNewInstance in class BaseDataType

Returns:

new instance of this DataType implementation.

isUnsigned

public boolean isUnsigned()

Description copied from interface: DataType

For numeric types, indicates whether type stores only non-negative (>= 0) values

Specified by:

isUnsigned in interface DataType

Overrides:

isUnsigned in class BaseDataType

See Also:

DatabaseMetaData.getTypeInfo()