org.axiondb.types
Class UnsignedIntegerType

java.lang.Object
  extended by org.axiondb.types.BaseDataType
      extended by org.axiondb.types.BaseNumberDataType
          extended by 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
UnsignedIntegerType()
           
 
Method Summary
 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
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 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()