er.memoryadaptor

Class EREntityStore

java.lang.Object

er.memoryadaptor.EREntityStore

Direct Known Subclasses:

ERJoinEntityStore, ERMemoryEntityStore

public abstract class EREntityStore
extends Object

EREntityStore is an abstract datastore implementation for a single "table" in non relational EOAdaptors like ERMemoryAdaptor. It provides basic fetch support. Additionally, this tracks a sequence number for the entity (for pk generation).

Author:

q

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	EREntityStore.JoinEntityStore

Constructor Summary

Constructors

Constructor and Description
EREntityStore()

Method Summary

Modifier and Type	Method and Description
protected abstract void	_insertRow(NSMutableDictionary<String,Object> row, EOEntity entity)
void	clear()
void	commitFromTransactionStore(EREntityStore store)
int	deleteRowsDescribedByQualifier(EOQualifier qualifier, EOEntity entity)
NSMutableArray<NSMutableDictionary<String,Object>>	fetch(NSArray<EOAttribute> attributesToFetch, EOFetchSpecification fetchSpecification, boolean shouldLock, EOEntity entity, ERMemoryAdaptorContext context)
protected NSArray<NSMutableDictionary<String,Object>>	fetchRelatedManyToManyRows(EOEntity entity, NSDictionary<String,Object> row, EORelationship relationship, ERMemoryAdaptorContext context) Will fetch related rows for the given row via the passed many-to-many relationship.
protected NSArray<NSMutableDictionary<String,Object>>	fetchRelatedRows(EOEntity entity, NSDictionary<String,Object> row, EORelationship relationship, ERMemoryAdaptorContext context) Will fetch related rows for the given row relationship.
void	insertRow(NSDictionary<String,Object> row, EOEntity entity)
abstract Iterator<NSMutableDictionary<String,Object>>	iterator()
int	nextSequence()
protected NSMutableDictionary<String,Object>	rowFromStoredValues(NSMutableDictionary<String,Object> rawRow, EOEntity entity)
EREntityStore	transactionStore()
int	updateValuesInRowsDescribedByQualifier(NSDictionary<String,Object> updatedRow, EOQualifier qualifier, EOEntity entity)

Methods inherited from class java.lang.Object

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

Constructor Detail

EREntityStore

public EREntityStore()

Method Detail

clear

public void clear()

commitFromTransactionStore

public void commitFromTransactionStore(EREntityStore store)

deleteRowsDescribedByQualifier

public int deleteRowsDescribedByQualifier(EOQualifier qualifier,
                                          EOEntity entity)

fetch

public NSMutableArray<NSMutableDictionary<String,Object>> fetch(NSArray<EOAttribute> attributesToFetch,
                                                                EOFetchSpecification fetchSpecification,
                                                                boolean shouldLock,
                                                                EOEntity entity,
                                                                ERMemoryAdaptorContext context)

fetchRelatedManyToManyRows

protected NSArray<NSMutableDictionary<String,Object>> fetchRelatedManyToManyRows(EOEntity entity,
                                                                                 NSDictionary<String,Object> row,
                                                                                 EORelationship relationship,
                                                                                 ERMemoryAdaptorContext context)

Will fetch related rows for the given row via the passed many-to-many relationship. The context will be used to access the needed entity stores.

Parameters:

entity - the current entity

row - the currently selected row

relationship - the many-to-many relationship

context - the memory adaptor context

Returns:

array of rows from related entity store

fetchRelatedRows

protected NSArray<NSMutableDictionary<String,Object>> fetchRelatedRows(EOEntity entity,
                                                                       NSDictionary<String,Object> row,
                                                                       EORelationship relationship,
                                                                       ERMemoryAdaptorContext context)

Will fetch related rows for the given row relationship. The context will be used to access the needed entity store.

Parameters:

entity - the current entity

row - the currently selected row

relationship - the relationship

context - the memory adaptor context

Returns:

array of rows from related entity store

rowFromStoredValues

protected NSMutableDictionary<String,Object> rowFromStoredValues(NSMutableDictionary<String,Object> rawRow,
                                                                 EOEntity entity)

_insertRow

protected abstract void _insertRow(NSMutableDictionary<String,Object> row,
                                   EOEntity entity)

insertRow

public void insertRow(NSDictionary<String,Object> row,
                      EOEntity entity)

iterator

public abstract Iterator<NSMutableDictionary<String,Object>> iterator()

nextSequence

public int nextSequence()

transactionStore

public EREntityStore transactionStore()

updateValuesInRowsDescribedByQualifier

public int updateValuesInRowsDescribedByQualifier(NSDictionary<String,Object> updatedRow,
                                                  EOQualifier qualifier,
                                                  EOEntity entity)