[Major] Implemented CACHED mode

This lead to refactoring of other code:
 - removed get*Dao() from StrolchTransaction
 - added StrolchTransaction.getPersistenceHandler()
 - removed unused variables in TransactionalElementMap
   - this lead to removal of constructors in subclasses
 - added ComponentContainer.getDataStoreMode()
 - added ElementMap.addAll(), removeAll() and updateAll() methods
   - implemented in all ElementMap implementations

src/main/java/li/strolch/persistence/postgresql/PostgreSqlPersistenceHandler.java

@@ -27,7 +27,9 @@ import li.strolch.agent.api.StrolchComponent;
 import li.strolch.agent.impl.ComponentContainerImpl;
 import li.strolch.agent.impl.StrolchRealm;
 import li.strolch.persistence.api.DbConnectionInfo;
+import li.strolch.persistence.api.OrderDao;
 import li.strolch.persistence.api.PersistenceHandler;
+import li.strolch.persistence.api.ResourceDao;
 import li.strolch.persistence.api.StrolchPersistenceException;
 import li.strolch.persistence.api.StrolchTransaction;
 import li.strolch.runtime.StrolchConstants;
@@ -127,4 +129,14 @@ public class PostgreSqlPersistenceHandler extends StrolchComponent implements Pe
 			throw new StrolchPersistenceException(msg, e);
 		}
 	}
+
+	@Override
+	public OrderDao getOrderDao(StrolchTransaction tx) {
+		return ((PostgreSqlStrolchTransaction) tx).getOrderDao();
+	}
+
+	@Override
+	public ResourceDao getResourceDao(StrolchTransaction tx) {
+		return ((PostgreSqlStrolchTransaction) tx).getResourceDao();
+	}
 }

src/main/java/li/strolch/persistence/postgresql/PostgreSqlStrolchTransaction.java

@@ -25,6 +25,7 @@ import li.strolch.model.StrolchElement;
 import li.strolch.persistence.api.AbstractTransaction;
 import li.strolch.persistence.api.ModificationResult;
 import li.strolch.persistence.api.OrderDao;
+import li.strolch.persistence.api.PersistenceHandler;
 import li.strolch.persistence.api.ResourceDao;
 import li.strolch.persistence.api.StrolchPersistenceException;
 import li.strolch.persistence.api.TransactionCloseStrategy;
@@ -102,15 +103,12 @@ public class PostgreSqlStrolchTransaction extends AbstractTransaction {
 		this.txResult = new TransactionResult();
 
 		try {
-			if (this.orderDao != null) {
+			if (this.orderDao != null)
 				this.orderDao.commit(this.txResult);
-			}
-
-			if (this.resourceDao != null) {
+			if (this.resourceDao != null)
 				this.resourceDao.commit(this.txResult);
-			}
-
-			this.connection.commit();
+			if (this.connection != null)
+				this.connection.commit();
 
 			this.txResult.setState(TransactionState.COMMITTED);
 
@@ -214,15 +212,13 @@ public class PostgreSqlStrolchTransaction extends AbstractTransaction {
 		return this.open;
 	}
 
-	@Override
-	public OrderDao getOrderDao() {
+	OrderDao getOrderDao() {
 		if (this.orderDao == null)
 			this.orderDao = new PostgreSqlOrderDao(this);
 		return (OrderDao) this.orderDao;
 	}
 
-	@Override
-	public ResourceDao getResourceDao() {
+	ResourceDao getResourceDao() {
 		if (this.resourceDao == null)
 			this.resourceDao = new PostgreSqlResourceDao(this);
 		return (ResourceDao) this.resourceDao;
@@ -237,4 +233,9 @@ public class PostgreSqlStrolchTransaction extends AbstractTransaction {
 		}
 		return this.connection;
 	}
+
+	@Override
+	public PersistenceHandler getPersistenceHandler() {
+		return this.persistenceHandler;
+	}
 }

src/test/java/li/strolch/persistence/postgresql/dao/test/ObserverUpdateTest.java

@@ -114,13 +114,13 @@ public class ObserverUpdateTest {
 		// create order
 		Order newOrder = createOrder("MyTestOrder", "Test Name", "TestType", new Date(), State.CREATED); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$
 		try (StrolchTransaction tx = runtimeMock.getDefaultRealm().openTx();) {
-			tx.getOrderDao().save(newOrder);
+			tx.getOrderMap().add(tx, newOrder);
 		}
 
 		// create resource
 		Resource newResource = createResource("MyTestResource", "Test Name", "TestType"); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$
 		try (StrolchTransaction tx = runtimeMock.getDefaultRealm().openTx();) {
-			tx.getResourceDao().save(newResource);
+			tx.getResourceMap().add(tx, newResource);
 		}
 
 		assertEquals(2, observer.results.size());