org.apache.derby.impl.store.access.btree.index
Class B2I_10_3

java.lang.Object
  extended by org.apache.derby.iapi.types.DataType
      extended by org.apache.derby.impl.store.access.conglomerate.GenericConglomerate
          extended by org.apache.derby.impl.store.access.btree.BTree
              extended by org.apache.derby.impl.store.access.btree.index.B2I
                  extended by org.apache.derby.impl.store.access.btree.index.B2I_10_3
All Implemented Interfaces:
java.io.Externalizable, java.io.Serializable, java.lang.Comparable, Formatable, Storable, TypedFormat, Conglomerate, DataValueDescriptor, Orderable

public class B2I_10_3
extends B2I

Class used to instantiate 10.3 version of the B2I object. This class implements the format of the B2I object as existed in the 10.3 release of Derby. In subsequent releases the format was enhanced to store the uniqueWithDuplicateNulls attribute of the index. For upgrade purpose all 10.3 and prior versions are assumed to have false for the uniqueWithDuplicateNulls attribute. This class reads and writes the V4 version to/from disk and reads/writes current in-memory version of the data structure.

See Also:
Serialized Form

Field Summary
 
Fields inherited from class org.apache.derby.impl.store.access.btree.index.B2I
baseConglomerateId, FORMAT_NUMBER, rowLocationColumn
 
Fields inherited from class org.apache.derby.impl.store.access.btree.BTree
ascDescInfo, collation_ids, conglom_format_id, format_ids, id, nKeyFields, PROPERTY_ALLOWDUPLICATES, PROPERTY_MAX_ROWS_PER_PAGE_PARAMETER, PROPERTY_NKEYFIELDS, PROPERTY_NUNIQUECOLUMNS, PROPERTY_PARENTLINKS, PROPERTY_UNIQUE_WITH_DUPLICATE_NULLS, ROOTPAGEID
 
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
B2I_10_3()
           
 
Method Summary
 int getTypeFormatId()
          Return my format identifier.
 void writeExternal(java.io.ObjectOutput out)
          Store the stored representation of the column value in the stream.
 
Methods inherited from class org.apache.derby.impl.store.access.btree.index.B2I
compressConglomerate, create, defragmentConglomerate, drop, estimateMemoryUsage, fetchMaxOnBTree, getBtreeLockingPolicy, getStaticCompiledConglomInfo, load, lockTable, open, openScan, openStoreCost, purgeConglomerate, readExternal, readExternalFromArray, writeExternal_v10_2, writeExternal_v10_3
 
Methods inherited from class org.apache.derby.impl.store.access.btree.BTree
addColumn, create, createTemplate, getContainerid, getDynamicCompiledConglomInfo, getId, isNull, isTemporary, isUnique, isUniqueWithDuplicateNulls, restoreToNull, setUniqueWithDuplicateNulls, toString
 
Methods inherited from class org.apache.derby.impl.store.access.conglomerate.GenericConglomerate
cloneValue, compare, getLength, getNewNull, getObject, getString, getTypeName, setFrom, setValueFromResultSet
 
Methods inherited from class org.apache.derby.iapi.types.DataType
checkHostVariable, cloneHolder, coalesce, compare, compare, compare, compareTo, dataTypeConversion, equals, equals, flip, getBoolean, getByte, getBytes, getDate, getDouble, getFloat, getInt, getLong, getNationalString, getShort, getStream, getTime, getTimestamp, getTraceString, greaterOrEquals, greaterThan, hasStream, in, invalidFormat, isNotNull, isNullOp, lessOrEquals, lessThan, normalize, notEquals, outOfRange, recycle, setBigDecimal, setInto, setInto, setObjectForCast, setToNull, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, throwLangSetMismatch, typePrecedence, typeToBigDecimal
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface org.apache.derby.iapi.types.DataValueDescriptor
checkHostVariable, cloneHolder, coalesce, compare, compare, compare, equals, getBoolean, getByte, getBytes, getDate, getDouble, getFloat, getInt, getLong, getShort, getStream, getTime, getTimestamp, getTraceString, greaterOrEquals, greaterThan, hasStream, in, isNotNull, isNullOp, lessOrEquals, lessThan, normalize, notEquals, recycle, setBigDecimal, setInto, setInto, setObjectForCast, setToNull, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, typePrecedence, typeToBigDecimal
 

Constructor Detail

B2I_10_3

public B2I_10_3()
Method Detail

getTypeFormatId

public int getTypeFormatId()
Return my format identifier.

Specified by:
getTypeFormatId in interface TypedFormat
Overrides:
getTypeFormatId in class B2I
Returns:
The identifier. (A UUID stuffed in an array of 16 bytes).
See Also:
TypedFormat.getTypeFormatId()

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException
Store the stored representation of the column value in the stream.

For more detailed description of the format see documentation at top of file.

Specified by:
writeExternal in interface java.io.Externalizable
Overrides:
writeExternal in class B2I
Throws:
java.io.IOException - thrown by writeObject()
See Also:
Externalizable.writeExternal(java.io.ObjectOutput)

Built on Thu 2011-03-10 11:54:14+0000, from revision ???

Apache Derby V10.6 Internals - Copyright © 2004,2007 The Apache Software Foundation. All Rights Reserved.