org.axiondb.types
Class UnsignedIntegerType

java.lang.Object
  org.axiondb.types.BaseDataType
      org.axiondb.types.BaseNumberDataType
          org.axiondb.types.UnsignedIntegerType

All Implemented Interfaces:

Comparator, DataType, DataTypeFactory, Serializable

public class UnsignedIntegerType

extends BaseNumberDataType

A DataType representing a unsigned integer value as a long.

Version:

$Revision: 1.9 $ $Date: 2004/09/09 23:47:42 $

See Also:

Serialized Form

Constructor Summary

UnsignedIntegerType()

Method Summary

boolean	accepts(Object value) Returns true iff value is String that can be converted without exception, null, or a Number.
Object	convert(Object value) Returns an Long converted from the given value, or throws IllegalArgumentException if the given value isn't acceptable.
int	getJdbcType() Returns the JDBC type codemost closely matching this type.
int	getPrecision() Value returned by ResultSetMetaData#getPrecisionfor this data type.
String	getPreferredValueClassName() Returns the "normal" type returned by convert(java.lang.Object).
boolean	isUnsigned() For numeric types, indicates whether type stores only non-negative (>= 0) values
DataType	makeNewInstance()
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.
String	toString()
void	write(Object value, 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, getColumnDisplaySize, getComparator, getLiteralPrefix, getLiteralSuffix, getNullableCode, 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

equals

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 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

toString

public String toString()

accepts

public boolean accepts(Object value)

Description copied from class: BaseNumberDataType

Returns true iff value is String that can be converted without exception, null, or a Number.

Specified by:

accepts in interface DataType

Overrides:

accepts in class BaseNumberDataType

convert

public Object convert(Object value)
               throws IllegalArgumentException

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

Specified by:

convert in interface DataType

Overrides:

convert in class BaseNumberDataType

Throws:

IllegalArgumentException

successor

public Object successor(Object value)
                 throws 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:

IllegalArgumentException

read

public Object read(DataInput in)
            throws 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:

IOException

See Also:

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

write

public void write(Object value,
                  DataOutput out)
           throws 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:

IOException

makeNewInstance

public DataType makeNewInstance()

Specified by:

makeNewInstance in interface DataTypeFactory

Specified by:

makeNewInstance in class BaseDataType

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