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[New] Added PersistenceHandler.supportsPaging()

This commit is contained in:
Robert von Burg 2022-11-21 12:09:50 +01:00
parent 836cbe067f
commit 538402e12a
Signed by: eitch
GPG Key ID: 75DB9C85C74331F7
3 changed files with 22 additions and 7 deletions
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5
li.strolch.agent/src/main/java/li/strolch/persistence/api/PersistenceHandler.java
View File

@ -27,6 +27,11 @@ import li.strolch.privilege.model.Certificate;
*/
public interface PersistenceHandler {
/**
* Returns true if this persistence layer supports paging, i.e. the DAO methods with a limit and offset may be used
*/
boolean supportsPaging();
/**
* Opens a {@link StrolchTransaction} on the given {@link StrolchRealm}. The transaction is the main object to be
* used when accessing and modifying the elements of a realm.

13
li.strolch.persistence.postgresql/src/main/java/li/strolch/persistence/postgresql/PostgreSqlPersistenceHandler.java
View File

@ -55,6 +55,11 @@ public class PostgreSqlPersistenceHandler extends StrolchComponent implements Pe
super(container, componentName);
}
@Override
public boolean supportsPaging() {
return true;
}
public DataType getDataType() {
return this.dataType;
}
@ -93,8 +98,8 @@ public class PostgreSqlPersistenceHandler extends StrolchComponent implements Pe
boolean allowSchemaCreation = configuration.getBoolean(PROP_ALLOW_SCHEMA_CREATION, Boolean.FALSE);
boolean allowSchemaMigration = configuration.getBoolean(PROP_ALLOW_SCHEMA_MIGRATION, Boolean.FALSE);
boolean allowSchemaDrop = configuration.getBoolean(PROP_ALLOW_SCHEMA_DROP, Boolean.FALSE);
boolean allowDataInitOnSchemaCreate = configuration
.getBoolean(PROP_ALLOW_DATA_INIT_ON_SCHEMA_CREATE, Boolean.FALSE);
boolean allowDataInitOnSchemaCreate = configuration.getBoolean(PROP_ALLOW_DATA_INIT_ON_SCHEMA_CREATE,
Boolean.FALSE);
DbSchemaVersionCheck schemaVersionCheck = new DbSchemaVersionCheck(SCRIPT_PREFIX_STROLCH, this.getClass(),
allowSchemaCreation, allowSchemaMigration, allowSchemaDrop);
@ -140,8 +145,8 @@ public class PostgreSqlPersistenceHandler extends StrolchComponent implements Pe
public Connection getConnection(String realm) {
DataSource ds = this.dsMap.get(realm);
if (ds == null) {
String msg = MessageFormat
.format("There is no DataSource registered for the realm {0}", realm); //$NON-NLS-1$
String msg = MessageFormat.format("There is no DataSource registered for the realm {0}",
realm); //$NON-NLS-1$
throw new StrolchPersistenceException(msg);
}

11
li.strolch.persistence.xml/src/main/java/li/strolch/persistence/xml/XmlPersistenceHandler.java
View File

@ -27,13 +27,13 @@ import li.strolch.agent.api.RealmHandler;
import li.strolch.agent.api.StrolchComponent;
import li.strolch.agent.api.StrolchRealm;
import li.strolch.agent.impl.StoreToDaoElementListener;
import li.strolch.model.log.LogMessage;
import li.strolch.model.ModelStatistics;
import li.strolch.model.Order;
import li.strolch.model.Resource;
import li.strolch.model.Tags;
import li.strolch.model.activity.Activity;
import li.strolch.model.audit.Audit;
import li.strolch.model.log.LogMessage;
import li.strolch.model.xml.XmlModelSaxFileReader;
import li.strolch.persistence.api.*;
import li.strolch.persistence.xml.model.*;
@ -60,6 +60,11 @@ public class XmlPersistenceHandler extends StrolchComponent implements Persisten
super(container, componentName);
}
@Override
public boolean supportsPaging() {
return false;
}
@Override
public void initialize(ComponentConfiguration configuration) throws Exception {
@ -140,8 +145,8 @@ public class XmlPersistenceHandler extends StrolchComponent implements Persisten
logger.info("Initializing realm " + realmName + " as DB is empty.");
StrolchConfiguration strolchConfiguration = getContainer().getAgent().getStrolchConfiguration();
ComponentConfiguration realmConfiguration = strolchConfiguration
.getComponentConfiguration(RealmHandler.class.getSimpleName());
ComponentConfiguration realmConfiguration = strolchConfiguration.getComponentConfiguration(
RealmHandler.class.getSimpleName());
String dataStoreKey = makeRealmKey(realmName, PREFIX_DATA_STORE_FILE);
RuntimeConfiguration runtimeConfiguration = strolchConfiguration.getRuntimeConfiguration();
File dataStoreF = realmConfiguration.getDataFile(dataStoreKey, null, runtimeConfiguration, true);