com.j_spaces.core.cache

Class TemplatesExtendedIndexHandler<K>

java.lang.Object

com.j_spaces.core.cache.TemplatesExtendedIndexHandler<K>

All Implemented Interfaces:

IExtendedIndex<K,TemplateCacheInfo>, IExtendedIndexScanPositioner<K,TemplateCacheInfo>

public class TemplatesExtendedIndexHandler<K>
extends Object
implements IExtendedIndex<K,TemplateCacheInfo>

handles data manipulation of space extended index

Since:

8.03

Version:

1.0

Author:

Yechiel Fefer

Constructor Summary

Constructors

Constructor and Description
TemplatesExtendedIndexHandler(TypeDataIndex index)

Method Summary

Modifier and Type	Method and Description
ExtendedIndexIterator<TemplateCacheInfo>	establishScan(K startPos, short relation, K endPos, boolean endPosInclusive) establish a scan according to the relation given and startPos : the start-scan object , null means scan all values.
ExtendedIndexIterator<TemplateCacheInfo>	establishScan(K startPos, short relation, K endPos, boolean endPosInclusive, boolean ordered) establish a scan according to the relation given and startPos : the start-scan object , null means scan all values.
IObjectInfo	insertEntryIndexedField(TemplateCacheInfo pTemplate, K fieldValue, TypeData pType, boolean alreadyCloned) insert a value for this key- if key already exist insert into the SL of same values
void	removeEntryIndexedField(IEntryHolder eh, Object fieldValue, TemplateCacheInfo pTemplate, IObjectInfo oi) remove entry indexed field from cache.

Methods inherited from class java.lang.Object

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

Constructor Detail

TemplatesExtendedIndexHandler

public TemplatesExtendedIndexHandler(TypeDataIndex index)

Method Detail

insertEntryIndexedField

public IObjectInfo insertEntryIndexedField(TemplateCacheInfo pTemplate,
                                           K fieldValue,
                                           TypeData pType,
                                           boolean alreadyCloned)

insert a value for this key- if key already exist insert into the SL of same values

Specified by:

insertEntryIndexedField in interface IExtendedIndex<K,TemplateCacheInfo>

Returns:

the index backref

removeEntryIndexedField

public void removeEntryIndexedField(IEntryHolder eh,
                                    Object fieldValue,
                                    TemplateCacheInfo pTemplate,
                                    IObjectInfo oi)

remove entry indexed field from cache.

Specified by:

removeEntryIndexedField in interface IExtendedIndex<K,TemplateCacheInfo>

establishScan

public ExtendedIndexIterator<TemplateCacheInfo> establishScan(K startPos,
                                                              short relation,
                                                              K endPos,
                                                              boolean endPosInclusive)

establish a scan according to the relation given and startPos : the start-scan object , null means scan all values. The relation is from com.j_spaces.client.TemplateMatchCodes: LT, LE, GT, GE (other codes are not relevant) endPos- key up to (or null if no limit in index) endPosInclusive : is the endPos up to (or down to) and including ? returns an ExtendedIndexIterator object which enables scanning the ordered index, Null if no relevant elements to scan

Specified by:

establishScan in interface IExtendedIndexScanPositioner<K,TemplateCacheInfo>

establishScan

public ExtendedIndexIterator<TemplateCacheInfo> establishScan(K startPos,
                                                              short relation,
                                                              K endPos,
                                                              boolean endPosInclusive,
                                                              boolean ordered)

establish a scan according to the relation given and startPos : the start-scan object , null means scan all values. The relation is from com.j_spaces.client.TemplateMatchCodes: LT, LE, GT, GE (other codes are not relevant) endPos- key up to (or null if no limit in index) endPosInclusive : is the endPos up to (or down to) and including ? ordered - according to the condition. GT, GE ==> ascending, LT, LE =====> descending. returns an IOrderedIndexScan object which enables scanning the ordered index, Null if no relevant elements to scan

Specified by:

establishScan in interface IExtendedIndexScanPositioner<K,TemplateCacheInfo>