org.apache.derby.impl.store.access
Class UTF

java.lang.Object
  org.apache.derby.iapi.types.DataType
      org.apache.derby.iapi.types.UserType
          org.apache.derby.impl.store.access.UTF

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Comparable, Formatable, Storable, TypedFormat, DataValueDescriptor, Orderable, UserDataValue

public class UTF
extends UserType

A class that is used to store java.lang.Strings and provide ordering capability.

See Also:

FormatIdOutputStream, Serialized Form

Field Summary

Fields inherited from interface org.apache.derby.iapi.types.DataValueDescriptor

UNKNOWN_LOGICAL_LENGTH

Fields inherited from interface org.apache.derby.iapi.types.Orderable

ORDER_OP_EQUALS, ORDER_OP_GREATEROREQUALS, ORDER_OP_GREATERTHAN, ORDER_OP_LESSOREQUALS, ORDER_OP_LESSTHAN

Constructor Summary

UTF()

UTF(java.lang.String value)

Method Summary

int	compare(DataValueDescriptor other) Orderable interface

Methods inherited from class org.apache.derby.iapi.types.UserType

cloneValue, compare, equals, estimateMemoryUsage, getBoolean, getByte, getBytes, getDate, getDouble, getFloat, getInt, getLength, getLong, getNewNull, getObject, getShort, getString, getTime, getTimestamp, getTypeFormatId, getTypeName, hashCode, isNull, notEquals, readExternal, restoreToNull, setBigDecimal, setFrom, setValue, setValue, setValueFromResultSet, toString, typePrecedence, writeExternal

Methods inherited from class org.apache.derby.iapi.types.DataType

checkHostVariable, cloneHolder, coalesce, compare, compare, compareTo, dataTypeConversion, equals, flip, getStream, getTraceString, greaterOrEquals, greaterThan, hasStream, in, invalidFormat, isNotNull, isNullOp, lessOrEquals, lessThan, normalize, outOfRange, readExternalFromArray, recycle, setInto, setInto, setObjectForCast, setToNull, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, throwLangSetMismatch, typeToBigDecimal

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.derby.iapi.types.DataValueDescriptor

checkHostVariable, cloneHolder, coalesce, compare, compare, getStream, getTraceString, greaterOrEquals, greaterThan, hasStream, in, isNotNull, isNullOp, lessOrEquals, lessThan, normalize, readExternalFromArray, recycle, setInto, setInto, setObjectForCast, setToNull, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, typeToBigDecimal

Constructor Detail

UTF

public UTF()

UTF

public UTF(java.lang.String value)

Method Detail

compare

public int compare(DataValueDescriptor other)

Description copied from class: UserType

Orderable interface

Specified by:

compare in interface DataValueDescriptor

Overrides:

compare in class UserType

Parameters:

other - The Orderable to compare this one to.

Returns:

<0 - this Orderable is less than other. 0 - this Orderable equals other. >0 - this Orderable is greater than other. The code should not explicitly look for -1, or 1.

See Also:

Orderable