com.gigaspaces.internal.query

Class CompoundAndIndexScanner

java.lang.Object

com.gigaspaces.internal.query.AbstractCompoundIndexScanner

com.gigaspaces.internal.query.CompoundAndIndexScanner

All Implemented Interfaces:

IQueryIndexScanner, Externalizable, Serializable

public class CompoundAndIndexScanner
extends AbstractCompoundIndexScanner

Scans the indexes and gets index with the least number of entries. This will be used as the potential matching list by the CacheManager.

Author:

anna

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.gigaspaces.internal.query.IQueryIndexScanner

IQueryIndexScanner.ResultIndicator

Field Summary

Fields inherited from class com.gigaspaces.internal.query.AbstractCompoundIndexScanner

indexScanners

Fields inherited from interface com.gigaspaces.internal.query.IQueryIndexScanner

RESULT_IGNORE_INDEX, RESULT_NO_MATCH

Constructor Summary

Constructors

Constructor and Description
CompoundAndIndexScanner()
CompoundAndIndexScanner(List<IQueryIndexScanner> indexScanners)

Method Summary

Modifier and Type	Method and Description
Object	getEntriesByIndex(TypeDataIndex<Object> index)
IObjectsList	getIndexedEntriesByType(Context context, TypeData typeData, ITemplateHolder template, int latestIndexToConsider)
String	getIndexName() The name of the index - index is stored in the space by this name
Object	getIndexValue() The value of the index - objects are indexed and stored according to specific index value.
boolean	requiresOrderedIndex() Returns true if this index scanner requires an ordered index
boolean	supportsFifoOrder() returns true if this index scanner preserves the fifo order
boolean	supportsTemplateIndex() Returns true if this index scanner supports template indexing

Methods inherited from class com.gigaspaces.internal.query.AbstractCompoundIndexScanner

getIndexScanners, isUidsScanner, readExternal, writeExternal

Methods inherited from class java.lang.Object

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

Constructor Detail

CompoundAndIndexScanner

public CompoundAndIndexScanner()

CompoundAndIndexScanner

public CompoundAndIndexScanner(List<IQueryIndexScanner> indexScanners)

Method Detail

getIndexName

public String getIndexName()

Description copied from interface: IQueryIndexScanner

The name of the index - index is stored in the space by this name

getIndexValue

public Object getIndexValue()

Description copied from interface: IQueryIndexScanner

The value of the index - objects are indexed and stored according to specific index value. This value will be used to search the index structure for entries that match this value .

requiresOrderedIndex

public boolean requiresOrderedIndex()

Description copied from interface: IQueryIndexScanner

Returns true if this index scanner requires an ordered index

supportsFifoOrder

public boolean supportsFifoOrder()

Description copied from interface: IQueryIndexScanner

returns true if this index scanner preserves the fifo order

supportsTemplateIndex

public boolean supportsTemplateIndex()

Description copied from interface: IQueryIndexScanner

Returns true if this index scanner supports template indexing

getIndexedEntriesByType

public IObjectsList getIndexedEntriesByType(Context context,
                                            TypeData typeData,
                                            ITemplateHolder template,
                                            int latestIndexToConsider)

getEntriesByIndex

public Object getEntriesByIndex(TypeDataIndex<Object> index)