com.aspc.DBObj.Internal

Class SortedResultsMap

java.lang.Object

com.aspc.DBObj.Internal.SortedResultsMap

All Implemented Interfaces:

MemoryHandler, java.util.Comparator

public class SortedResultsMap
extends java.lang.Object
implements MemoryHandler, java.util.Comparator

A sorted map between sorted row number and original row number. THREAD MODE: SINGLE-THREADED

Since:

13 June 2002

Author:

Nigel Leck

Nested Class Summary

Nested classes/interfaces inherited from interface com.aspc.remote.memory.MemoryHandler

MemoryHandler.Cost

Constructor Summary

Constructors

Constructor and Description
SortedResultsMap(java.lang.String orderBy, DBResult dbResult, int maxRows)

Method Summary

Modifier and Type	Method and Description
int	compare(java.lang.Object o1, java.lang.Object o2) INTERNAL ONLY.
long	freeMemory(double percent) Free memory at this level and below.
MemoryHandler.Cost	getCost() The cost of this Memory Handler
long	getEstimatedSize() The estimated size of data held by this memory handler
long	getLastAccessed() The last time this memory handle was accessed
java.lang.String	getOrderBy() Returns the current order by clause.
int	getRealRow(int requestedRow)
long	panicFreeMemory() Clear all memory ASAP.
static java.util.ArrayList	parseSortOrder(DBClassConcrete dbClass, DBResult dbResult, java.lang.String orderBy)
long	queuedFreeMemory(double percent) This method should implement the freeing of the method and maybe synchronized.
long	tidyUp() Tidy up the memory handler

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

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

SortedResultsMap

public SortedResultsMap(@Nonnull
                        java.lang.String orderBy,
                        @Nonnull
                        DBResult dbResult,
                        int maxRows)
                 throws java.lang.NoSuchFieldException

Parameters:

orderBy -

dbResult -

maxRows -

Throws:

java.lang.NoSuchFieldException

Method Detail

getLastAccessed

public long getLastAccessed()

Description copied from interface: MemoryHandler

The last time this memory handle was accessed

Specified by:

getLastAccessed in interface MemoryHandler

Returns:

the value

getRealRow

public int getRealRow(int requestedRow)

Parameters:

requestedRow -

Returns:

the value

parseSortOrder

public static java.util.ArrayList parseSortOrder(DBClassConcrete dbClass,
                                                 DBResult dbResult,
                                                 java.lang.String orderBy)
                                          throws java.lang.NoSuchFieldException

Parameters:

dbClass - the class

dbResult -

orderBy -

Returns:

the value

Throws:

java.lang.NoSuchFieldException

getOrderBy

public java.lang.String getOrderBy()

Returns the current order by clause.

Returns:

The clause.

compare

public int compare(java.lang.Object o1,
                   java.lang.Object o2)

INTERNAL ONLY. Used for sorting. if first > second then 1 else if first == second then 0 else if first < sencond the -1

Specified by:

compare in interface java.util.Comparator

Parameters:

o1 -

o2 -

Returns:

-1 or 0 or 1

getCost

@Nonnull
public MemoryHandler.Cost getCost()

The cost of this Memory Handler

Specified by:

getCost in interface MemoryHandler

Returns:

the value

freeMemory

public long freeMemory(double percent)

Free memory at this level and below.

Specified by:

freeMemory in interface MemoryHandler

Parameters:

percent -

Returns:

the approximate amount freed.

panicFreeMemory

public long panicFreeMemory()

Clear all memory ASAP.

Specified by:

panicFreeMemory in interface MemoryHandler

Returns:

The estimated total number of bytes released.

queuedFreeMemory

public long queuedFreeMemory(double percent)

Description copied from interface: MemoryHandler

This method should implement the freeing of the method and maybe synchronized.

Specified by:

queuedFreeMemory in interface MemoryHandler

Parameters:

percent -

Returns:

the value

getEstimatedSize

@CheckReturnValue
 @Nonnegative
public long getEstimatedSize()

Description copied from interface: MemoryHandler

The estimated size of data held by this memory handler

Specified by:

getEstimatedSize in interface MemoryHandler

Returns:

the value

tidyUp

public long tidyUp()

Description copied from interface: MemoryHandler

Tidy up the memory handler

Specified by:

tidyUp in interface MemoryHandler

Returns:

the value