Interface Storable
- All Superinterfaces:
Externalizable
,Formatable
,Serializable
,TypedFormat
- All Known Subinterfaces:
BitDataValue
,BooleanDataValue
,ConcatableDataValue
,Conglomerate
,DataValueDescriptor
,DateTimeDataValue
,NumberDataValue
,RefDataValue
,RowLocation
,StaticCompiledOpenConglomInfo
,StringDataValue
,UserDataValue
,XMLDataValue
- All Known Implementing Classes:
B2I
,B2I_10_3
,B2I_v10_2
,B2IStaticCompiledInfo
,BinaryOrderableWrapper
,BTree
,CollatorSQLChar
,CollatorSQLClob
,CollatorSQLLongvarchar
,CollatorSQLVarchar
,DataType
,GenericConglomerate
,Heap
,Heap_v10_2
,HeapRowLocation
,NumberDataType
,SQLBinary
,SQLBit
,SQLBlob
,SQLBoolean
,SQLChar
,SQLClob
,SQLDate
,SQLDecimal
,SQLDouble
,SQLInteger
,SQLLongint
,SQLLongVarbit
,SQLLongvarchar
,SQLReal
,SQLRef
,SQLSmallint
,SQLTime
,SQLTimestamp
,SQLTinyint
,SQLVarbit
,SQLVarchar
,StorableFormatId
,UserType
,UTF
,XML
Formatable for holding SQL data (which may be null).
- See Also:
-
Method Summary
Modifier and TypeMethodDescriptionboolean
isNull()
Return whether the value is null or not.void
Restore this object to its (SQL)null value.Methods inherited from interface java.io.Externalizable
readExternal, writeExternal
Methods inherited from interface org.apache.derby.iapi.services.io.TypedFormat
getTypeFormatId
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Method Details
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isNull
boolean isNull()Return whether the value is null or not.- Returns:
- true if the value is null and false otherwise.
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restoreToNull
void restoreToNull()Restore this object to its (SQL)null value.
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