Interface IListMapping
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- All Known Subinterfaces:
IListMapping2
,IListMapping3
,IListMappingUnitSupport
public interface IListMapping
Interface for mapping features withisMany() == true
.- Since:
- 2.0
- Author:
- Eike Stepper, Stefan Winkler
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description java.util.Collection<org.eclipse.net4j.db.ddl.IDBTable>
getDBTables()
Returns all DB tables which are used by this feature.org.eclipse.emf.ecore.EStructuralFeature
getFeature()
Return the mapped feature.void
objectDetached(IDBStoreAccessor accessor, CDOID id, long revised)
Hook with which a list mapping is notified that a containing object has been revised.boolean
queryXRefs(IDBStoreAccessor accessor, java.lang.String mainTableName, java.lang.String mainTableWhere, IStoreAccessor.QueryXRefsContext context, java.lang.String idString)
Retrieve cross-references from DB.void
readChunks(IDBStoreChunkReader dbStoreChunkReader, java.util.List<IStoreChunkReader.Chunk> chunks, java.lang.String where)
Used to load-on-demand chunks of a list.void
readValues(IDBStoreAccessor accessor, InternalCDORevision revision, int listChunk)
Read the list size and the complete list or the first part of it.void
writeValues(IDBStoreAccessor accessor, InternalCDORevision revision)
Write a complete list of values to the database.
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Method Detail
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getFeature
org.eclipse.emf.ecore.EStructuralFeature getFeature()
Return the mapped feature.- Returns:
- the mapped feature.
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getDBTables
java.util.Collection<org.eclipse.net4j.db.ddl.IDBTable> getDBTables()
Returns all DB tables which are used by this feature.- Returns:
- a collection of all tables of this feature.
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writeValues
void writeValues(IDBStoreAccessor accessor, InternalCDORevision revision)
Write a complete list of values to the database.- Parameters:
accessor
- the accessor to use.revision
- the revision containing the list to be written.
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readValues
void readValues(IDBStoreAccessor accessor, InternalCDORevision revision, int listChunk)
Read the list size and the complete list or the first part of it.- Parameters:
accessor
- the accessor to use.revision
- the revision into which the list values should be read.listChunk
- indicating the lazy loading behavior:CDORevision.UNCHUNKED
means that the whole list should be read. Else, iflistChunk >= 0
, the list is filled withInternalCDOList.UNINITIALIZED
and only the firstlistChunk
values are read.
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readChunks
void readChunks(IDBStoreChunkReader dbStoreChunkReader, java.util.List<IStoreChunkReader.Chunk> chunks, java.lang.String where)
Used to load-on-demand chunks of a list.- Parameters:
dbStoreChunkReader
- the chunkReader to usechunks
- the chunks to readwhere
- the where-clause to use in order to read the chunks.
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objectDetached
void objectDetached(IDBStoreAccessor accessor, CDOID id, long revised)
Hook with which a list mapping is notified that a containing object has been revised. Can be implemented in order to clean up lists of revised objects.- Parameters:
accessor
- the accessor to use.id
- the ID of the object which has been revised.revised
- the timestamp at which the object was revised.- Since:
- 3.0
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queryXRefs
boolean queryXRefs(IDBStoreAccessor accessor, java.lang.String mainTableName, java.lang.String mainTableWhere, IStoreAccessor.QueryXRefsContext context, java.lang.String idString)
Retrieve cross-references from DB.
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