Package com.ibm.fhir.persistence.jdbc.dao

Class ReindexResourceDAO

java.lang.Object

com.ibm.fhir.persistence.jdbc.dao.impl.FHIRDbDAOImpl

com.ibm.fhir.persistence.jdbc.dao.impl.ResourceDAOImpl

com.ibm.fhir.persistence.jdbc.dao.ReindexResourceDAO

All Implemented Interfaces:

FHIRDbDAO, ResourceDAO

Direct Known Subclasses:

PostgresReindexResourceDAO

public class ReindexResourceDAO
extends ResourceDAOImpl

DAO used to contain the logic required to reindex a given resource

Field Summary

Fields inherited from class com.ibm.fhir.persistence.jdbc.dao.impl.ResourceDAOImpl

DEFAULT_VALUE_REINDEX_TSTAMP, IDX_DATA, IDX_IS_DELETED, IDX_LAST_UPDATED, IDX_LOGICAL_ID, IDX_LOGICAL_RESOURCE_ID, IDX_RESOURCE_ID, IDX_VERSION_ID

Constructor Summary

Constructors

Constructor	Description
ReindexResourceDAO(Connection connection, IDatabaseTranslator translator, ParameterDAO parameterDao, String schemaName, FHIRDbFlavor flavor, FHIRPersistenceJDBCCache cache, IResourceReferenceDAO rrd)	Public constructor
ReindexResourceDAO(Connection connection, IDatabaseTranslator translator, ParameterDAO parameterDao, String schemaName, FHIRDbFlavor flavor, TransactionSynchronizationRegistry trxSynchRegistry, FHIRPersistenceJDBCCache cache, IResourceReferenceDAO rrd, ParameterTransactionDataImpl ptdi)	Public constructor

Method Summary

Modifier and Type	Method	Description
protected void	deleteFromParameterTable(Connection conn, String tableName, long logicalResourceId)	Delete all parameters for the given resourceId from the parameters table
protected ResourceIndexRecord	getNextResource(SecureRandom random, Instant reindexTstamp, Integer resourceTypeId, String logicalId)	Pick the next resource to process resource and lock it.
ResourceIndexRecord	getResourceToReindex(Instant reindexTstamp, Integer resourceTypeId, String logicalId)	Get the resource record we want to reindex.
protected IDatabaseTranslator	getTranslator()	Getter for the translator currently held by this DAO
void	updateParameters(String tablePrefix, List<ExtractedParameterValue> parameters, String logicalId, long logicalResourceId)	Reindex the resource by deleting existing parameters and replacing them with those passed in.

Methods inherited from class com.ibm.fhir.persistence.jdbc.dao.impl.ResourceDAOImpl

addResourceTypeCacheCandidate, createDTO, getCache, getResourceReferenceDAO, getResourceTypeIdFromCaches, getSearchByIdsSql, getTransactionData, history, historyCount, insert, read, readAllResourceTypeNames, readResourceTypeId, search, search, searchByIds, searchCount, searchCount, searchForIds, searchStringValues, setPersistenceContext, versionRead

Methods inherited from class com.ibm.fhir.persistence.jdbc.dao.impl.FHIRDbDAOImpl

buildExceptionWithIssue, buildFHIRPersistenceDBConnectException, cleanup, cleanup, createDTOs, getConnection, getFlavor, getSchemaName, isDb2Database, runCountQuery, runQuery, runQuery_STR_VALUES, severe, severe

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.ibm.fhir.persistence.jdbc.dao.api.FHIRDbDAO

getConnection, getFlavor, isDb2Database

Constructor Detail

ReindexResourceDAO

public ReindexResourceDAO(Connection connection,
                          IDatabaseTranslator translator,
                          ParameterDAO parameterDao,
                          String schemaName,
                          FHIRDbFlavor flavor,
                          FHIRPersistenceJDBCCache cache,
                          IResourceReferenceDAO rrd)

Public constructor

Parameters:

connection -

translator -

parameterDao -

schemaName -

flavor -

cache -

rrd -

ReindexResourceDAO

public ReindexResourceDAO(Connection connection,
                          IDatabaseTranslator translator,
                          ParameterDAO parameterDao,
                          String schemaName,
                          FHIRDbFlavor flavor,
                          TransactionSynchronizationRegistry trxSynchRegistry,
                          FHIRPersistenceJDBCCache cache,
                          IResourceReferenceDAO rrd,
                          ParameterTransactionDataImpl ptdi)

Public constructor

Parameters:

connection -

translator -

parameterDao -

schemaName -

flavor -

trxSynchRegistry -

cache -

rrd -

Method Detail

getTranslator

protected IDatabaseTranslator getTranslator()

Getter for the translator currently held by this DAO

Returns:

getNextResource

protected ResourceIndexRecord getNextResource(SecureRandom random,
                                              Instant reindexTstamp,
                                              Integer resourceTypeId,
                                              String logicalId)
                                       throws Exception

Pick the next resource to process resource and lock it. Specializations for different databases may use different techniques to optimize locking/concurrency control

Parameters:

reindexTstamp -

Returns:

Throws:

Exception

getResourceToReindex

public ResourceIndexRecord getResourceToReindex(Instant reindexTstamp,
                                                Integer resourceTypeId,
                                                String logicalId)
                                         throws Exception

Get the resource record we want to reindex. This might take a few attempts, because there could be hundreds of threads all trying to do the same thing, and we may see collisions which will cause the FOR UPDATE to block, then return no rows.

Parameters:

reindexTstamp -

resourceCount -

Returns:

the resource record, or null when there is nothing left to do

Throws:

Exception

updateParameters

public void updateParameters(String tablePrefix,
                             List<ExtractedParameterValue> parameters,
                             String logicalId,
                             long logicalResourceId)
                      throws Exception

Reindex the resource by deleting existing parameters and replacing them with those passed in.

Parameters:

tablePrefix - the table prefix

parameters - the extracted parameters

logicalId - the logical id

logicalResourceId - the logical resource id

Throws:

Exception

deleteFromParameterTable

protected void deleteFromParameterTable(Connection conn,
                                        String tableName,
                                        long logicalResourceId)
                                 throws SQLException

Delete all parameters for the given resourceId from the parameters table

Parameters:

conn -

tableName -

logicalResourceId -

Throws:

SQLException