org.axiondb.types
Class AnyType

java.lang.Object
  org.axiondb.types.BaseDataType
      org.axiondb.types.AnyType

All Implemented Interfaces:

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

public class AnyType
extends BaseDataType

Generic implemention of DataType, for use by BindVariable.

Version:

$Revision: 1.12 $ $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

Field Summary

static AnyType

INSTANCE

Constructor Summary

AnyType()

Method Summary

boolean	accepts(java.lang.Object value) Return true if a field of my type can be assigned the given non- null value , false otherwise.
java.lang.Object	convert(java.lang.Object value) Converts an acceptablevalue to one of the appropriate type.
int	getColumnDisplaySize() Value returned by ResultSetMetaData#getColumnDisplaySizefor this data type.
int	getJdbcType() Returns the JDBC type codemost closely matching this type.
java.lang.String	getPreferredValueClassName() Returns the "normal" type returned by DataType.convert(java.lang.Object).
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.
boolean	supportsSuccessor() Returns true if the DataType.successor(java.lang.Object)method is supported, false otherwise.
java.sql.Blob	toBlob(java.lang.Object value) Convert the given non- null value to a Blob, or throw a AxionException.
boolean	toBoolean(java.lang.Object value) Convert the given non- null value to a boolean, or throw a SQLException.
byte	toByte(java.lang.Object value) Convert the given non- null value to a byte, or throw a SQLException.
byte[]	toByteArray(java.lang.Object value) Convert the given non- null value to a byte[], or throw a AxionException.
java.sql.Clob	toClob(java.lang.Object value) Convert the given non- null value to a Clob, or throw a AxionException.
java.sql.Date	toDate(java.lang.Object value) Convert the given non- null value to a Date, or throw a SQLException.
double	toDouble(java.lang.Object value) Convert the given non- null value to a double, or throw a AxionException.
float	toFloat(java.lang.Object value) Convert the given non- null value to a float, or throw a AxionException.
int	toInt(java.lang.Object value) Convert the given non- null value to a int, or throw a AxionException.
long	toLong(java.lang.Object value) Convert the given non- null value to a long, or throw a AxionException.
protected java.lang.Number	toNumber(java.lang.Object value)
short	toShort(java.lang.Object value) Convert the given non- null value to a short, or throw a AxionException.
java.lang.String	toString(java.lang.Object value) Convert the given non- null value to a String, or throw a AxionException.
java.sql.Time	toTime(java.lang.Object value) Convert the given non- null value to a Time, or throw a AxionException.
java.sql.Timestamp	toTimestamp(java.lang.Object value) Convert the given non- null value to a Timestamp, or throw a AxionException.
void	write(java.lang.Object value, java.io.DataOutput out) Write an object of my type to the given DataOutput.

Methods inherited from class org.axiondb.types.BaseDataType

compare, getComparator, getLiteralPrefix, getLiteralSuffix, getNullableCode, getPrecision, getPrecisionRadix, getScale, getSearchableCode, isCaseSensitive, isCurrency, isUnsigned, toBigDecimal, toBigInteger, toURL

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

equals

Field Detail

INSTANCE

public static final AnyType INSTANCE

Constructor Detail

AnyType

public AnyType()

Method Detail

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.

accepts

public boolean accepts(java.lang.Object value)

Description copied from interface: DataType

Return true if a field of my type can be assigned the given non- null value , false otherwise.

Specified by:

accepts in interface DataType

Specified by:

accepts in class BaseDataType

Parameters:

value - non- null value

convert

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

Description copied from interface: DataType

Converts an acceptablevalue to one of the appropriate type.

Specified by:

convert in interface DataType

Specified by:

convert in class BaseDataType

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

write

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

Description copied from interface: DataType

Write an object of my type to the given DataOutput.

Specified by:

write in interface DataType

Specified by:

write in class BaseDataType

Parameters:

value - the value to write, which must be acceptableto this DataType

Throws:

java.io.IOException

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)

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)

supportsSuccessor

public boolean supportsSuccessor()

Description copied from interface: DataType

Returns true if the DataType.successor(java.lang.Object)method is supported, false otherwise.

Specified by:

supportsSuccessor in interface DataType

Overrides:

supportsSuccessor in class BaseDataType

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

toNumber

protected java.lang.Number toNumber(java.lang.Object value)
                             throws AxionException

Overrides:

toNumber in class BaseDataType

Throws:

AxionException

toBoolean

public boolean toBoolean(java.lang.Object value)
                  throws AxionException

Description copied from interface: DataType

Convert the given non- null value to a boolean, or throw a SQLException.

Specified by:

toBoolean in interface DataType

Overrides:

toBoolean in class BaseDataType

Throws:

AxionException

See Also:

ResultSet.getBoolean(int)

toByte

public byte toByte(java.lang.Object value)
            throws AxionException

Description copied from interface: DataType

Convert the given non- null value to a byte, or throw a SQLException.

Specified by:

toByte in interface DataType

Overrides:

toByte in class BaseDataType

Throws:

AxionException

See Also:

ResultSet.getByte(int)

toByteArray

public byte[] toByteArray(java.lang.Object value)
                   throws AxionException

Description copied from interface: DataType

Convert the given non- null value to a byte[], or throw a AxionException.

Specified by:

toByteArray in interface DataType

Overrides:

toByteArray in class BaseDataType

Throws:

AxionException

See Also:

ResultSet.getBytes(int)

toDouble

public double toDouble(java.lang.Object value)
                throws AxionException

Description copied from interface: DataType

Convert the given non- null value to a double, or throw a AxionException.

Specified by:

toDouble in interface DataType

Overrides:

toDouble in class BaseDataType

Throws:

AxionException

See Also:

ResultSet.getDouble(int)

toFloat

public float toFloat(java.lang.Object value)
              throws AxionException

Description copied from interface: DataType

Convert the given non- null value to a float, or throw a AxionException.

Specified by:

toFloat in interface DataType

Overrides:

toFloat in class BaseDataType

Throws:

AxionException

See Also:

ResultSet.getFloat(int)

toInt

public int toInt(java.lang.Object value)
          throws AxionException

Description copied from interface: DataType

Convert the given non- null value to a int, or throw a AxionException.

Specified by:

toInt in interface DataType

Overrides:

toInt in class BaseDataType

Throws:

AxionException

See Also:

ResultSet.getInt(int)

toLong

public long toLong(java.lang.Object value)
            throws AxionException

Description copied from interface: DataType

Convert the given non- null value to a long, or throw a AxionException.

Specified by:

toLong in interface DataType

Overrides:

toLong in class BaseDataType

Throws:

AxionException

See Also:

ResultSet.getLong(int)

toShort

public short toShort(java.lang.Object value)
              throws AxionException

Description copied from interface: DataType

Convert the given non- null value to a short, or throw a AxionException.

Specified by:

toShort in interface DataType

Overrides:

toShort in class BaseDataType

Throws:

AxionException

See Also:

ResultSet.getShort(int)

toString

public java.lang.String toString(java.lang.Object value)
                          throws AxionException

Description copied from interface: DataType

Convert the given non- null value to a String, or throw a AxionException.

Specified by:

toString in interface DataType

Overrides:

toString in class BaseDataType

Throws:

AxionException

See Also:

ResultSet.getString(int)

toDate

public java.sql.Date toDate(java.lang.Object value)
                     throws AxionException

Description copied from interface: DataType

Convert the given non- null value to a Date, or throw a SQLException.

Specified by:

toDate in interface DataType

Overrides:

toDate in class BaseDataType

Throws:

AxionException

See Also:

ResultSet.getDate(int)

toTime

public java.sql.Time toTime(java.lang.Object value)
                     throws AxionException

Description copied from interface: DataType

Convert the given non- null value to a Time, or throw a AxionException.

Specified by:

toTime in interface DataType

Overrides:

toTime in class BaseDataType

Throws:

AxionException

See Also:

ResultSet.getTime(int)

toTimestamp

public java.sql.Timestamp toTimestamp(java.lang.Object value)
                               throws AxionException

Description copied from interface: DataType

Convert the given non- null value to a Timestamp, or throw a AxionException.

Specified by:

toTimestamp in interface DataType

Overrides:

toTimestamp in class BaseDataType

Throws:

AxionException

See Also:

ResultSet.getTimestamp(int)

toClob

public java.sql.Clob toClob(java.lang.Object value)
                     throws AxionException

Description copied from interface: DataType

Convert the given non- null value to a Clob, or throw a AxionException.

Specified by:

toClob in interface DataType

Overrides:

toClob in class BaseDataType

Throws:

AxionException

See Also:

ResultSet.getClob(int)

toBlob

public java.sql.Blob toBlob(java.lang.Object value)
                     throws AxionException

Description copied from interface: DataType

Convert the given non- null value to a Blob, or throw a AxionException.

Specified by:

toBlob in interface DataType

Overrides:

toBlob in class BaseDataType

Throws:

AxionException

See Also:

ResultSet.getBlob(int)