diff --git a/.project b/.project
index 08328ec..56f8001 100644
--- a/.project
+++ b/.project
@@ -5,11 +5,6 @@
 	<projects>
 	</projects>
 	<buildSpec>
-		<buildCommand>
-			<name>org.eclipse.wst.common.project.facet.core.builder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
 		<buildCommand>
 			<name>org.eclipse.jdt.core.javabuilder</name>
 			<arguments>
@@ -25,6 +20,5 @@
 		<nature>org.springframework.ide.eclipse.core.springnature</nature>
 		<nature>org.springsource.ide.eclipse.gradle.core.nature</nature>
 		<nature>org.eclipse.jdt.core.javanature</nature>
-		<nature>org.eclipse.wst.common.project.facet.core.nature</nature>
 	</natures>
 </projectDescription>
diff --git a/.settings/org.eclipse.jdt.core.prefs b/.settings/org.eclipse.jdt.core.prefs
index 8807bcd..b6bc4d5 100644
--- a/.settings/org.eclipse.jdt.core.prefs
+++ b/.settings/org.eclipse.jdt.core.prefs
@@ -1,5 +1,5 @@
 #
-#Thu Dec 17 10:45:31 CET 2015
+#Fri Jan 15 11:32:52 CET 2016
 org.eclipse.jdt.core.compiler.debug.localVariable=generate
 org.eclipse.jdt.core.compiler.compliance=1.8
 org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
diff --git a/src/test/java/ch/psi/daq/test/queryrest/query/DummyCassandraReader.java b/src/test/java/ch/psi/daq/test/queryrest/query/DummyCassandraReader.java
index 7496ac7..769e035 100644
--- a/src/test/java/ch/psi/daq/test/queryrest/query/DummyCassandraReader.java
+++ b/src/test/java/ch/psi/daq/test/queryrest/query/DummyCassandraReader.java
@@ -6,32 +6,32 @@ package ch.psi.daq.test.queryrest.query;
 import java.util.List;
 import java.util.Random;
 import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.TimeUnit;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 import java.util.stream.LongStream;
 import java.util.stream.Stream;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import com.google.common.collect.Lists;
 
 import ch.psi.daq.cassandra.reader.CassandraReader;
-import ch.psi.daq.cassandra.reader.query.PulseIdRangeQuery;
-import ch.psi.daq.cassandra.reader.query.TimeRangeQuery;
 import ch.psi.daq.cassandra.util.test.CassandraDataGen;
 import ch.psi.daq.common.ordering.Ordering;
 import ch.psi.daq.domain.DataEvent;
+import ch.psi.daq.domain.cassandra.ChannelConfiguration;
 import ch.psi.daq.domain.cassandra.ChannelEvent;
 import ch.psi.daq.domain.cassandra.MetaPulseId;
-import ch.psi.daq.domain.cassandra.MetaTime;
+import ch.psi.daq.domain.cassandra.query.PulseIdRangeQuery;
+import ch.psi.daq.domain.cassandra.query.TimeRangeQuery;
 import ch.psi.daq.domain.cassandra.querying.ChannelEventQuery;
-import ch.psi.daq.domain.cassandra.querying.ChannelEventQueryInfo;
+import ch.psi.daq.domain.cassandra.querying.MetaChannelEvent;
 import ch.psi.daq.domain.cassandra.querying.EventQuery;
-import ch.psi.data.converters.ConverterProvider;
 
-/**
- * @author zellweger_c
- *
- */
 public class DummyCassandraReader implements CassandraReader {
+   private static final Logger LOGGER = LoggerFactory.getLogger(DummyCassandraReader.class);
 
    private static final int KEYSPACE = 1;
    private CassandraDataGen dataGen;
@@ -89,7 +89,7 @@ public class DummyCassandraReader implements CassandraReader {
     */
    @Override
    public Stream<? extends DataEvent> getEventStream(String channel, long startPulseId, long endPulseId,
-         Ordering ordering, String... columns) {
+         Ordering ordering, boolean aggregateValues, String... columns) {
       return getDummyEventStream(channel, startPulseId, endPulseId);
    }
 
@@ -98,7 +98,7 @@ public class DummyCassandraReader implements CassandraReader {
     */
    @Override
    public Stream<? extends DataEvent> getEventStream(String channel, long startMillis, long startNanos, long endMillis,
-         long endNanos, Ordering ordering, String... columns) {
+         long endNanos, Ordering ordering, boolean aggregateValues, String... columns) {
       return getDummyEventStream(channel, startMillis / 10, endMillis / 10);
    }
 
@@ -108,8 +108,8 @@ public class DummyCassandraReader implements CassandraReader {
    @Override
    public Stream<ChannelEvent> getEventStream(EventQuery eventQuery, Stream<? extends ChannelEventQuery> queryProviders) {
       Stream<ChannelEvent> result = queryProviders.map(ceq -> {
-         if (ceq instanceof ChannelEventQueryInfo) {
-            return getEvent((ChannelEventQueryInfo) ceq);
+         if (ceq instanceof MetaChannelEvent) {
+            return getEvent((MetaChannelEvent) ceq);
          } else {
             throw new UnsupportedOperationException("This is not yet implemented!");
          }
@@ -160,6 +160,7 @@ public class DummyCassandraReader implements CassandraReader {
                   i,
                   i * 10,
                   0,
+                  KEYSPACE,
                   value
             );
 
@@ -176,6 +177,7 @@ public class DummyCassandraReader implements CassandraReader {
                   i,
                   i * 10,
                   0,
+                  KEYSPACE,
                   value,
                   shape
             );
@@ -187,6 +189,7 @@ public class DummyCassandraReader implements CassandraReader {
                   i,
                   i * 10,
                   0,
+                  KEYSPACE,
                   i
             );
          }
@@ -221,7 +224,7 @@ public class DummyCassandraReader implements CassandraReader {
     * @{inheritDoc
     */
    @Override
-   public ChannelEvent getEvent(ChannelEventQueryInfo queryInfo, String... columns) {
+   public ChannelEvent getEvent(MetaChannelEvent queryInfo, String... columns) {
       if (queryInfo.getPulseId() > 0) {
          return (ChannelEvent) getDummyEvents(queryInfo.getChannel(), queryInfo.getPulseId(), queryInfo.getPulseId())
                .get(0);
@@ -234,7 +237,8 @@ public class DummyCassandraReader implements CassandraReader {
     * @{inheritDoc
     */
    @Override
-   public CompletableFuture<ChannelEvent> getEventAsync(ChannelEventQueryInfo queryInfo, String... columns) {
+   public CompletableFuture<ChannelEvent> getEventAsync(MetaChannelEvent queryInfo, String... columns) {
+      // implement when needed
       throw new UnsupportedOperationException();
    }
 
@@ -245,15 +249,17 @@ public class DummyCassandraReader implements CassandraReader {
    public Stream<? extends ChannelEventQuery> getChannelEventQueryStream(PulseIdRangeQuery query) {
 
       return dataGen.generateMetaPulseId(
-            KEYSPACE,
-            ConverterProvider.TYPE_INT32,
-            null,
             query.getStartPulseId(),
             (query.getEndPulseId() - query.getStartPulseId() + 1),
             i -> i * 10,
             i -> 0,
             i -> i,
-            query.getChannel()).stream();
+            query.getChannel())
+            .stream()
+            .map(metaPulse -> {
+               metaPulse.setKeyspace(KEYSPACE);
+               return metaPulse;
+            });
    }
 
    /**
@@ -264,8 +270,6 @@ public class DummyCassandraReader implements CassandraReader {
 
       return dataGen.generateMetaTime(
             KEYSPACE,
-            ConverterProvider.TYPE_INT32,
-            null,
             query.getStartMillis() / 10,
             ((query.getEndMillis() - query.getStartMillis()) / 10 + 1),
             i -> i * 10,
@@ -278,7 +282,7 @@ public class DummyCassandraReader implements CassandraReader {
     * @{inheritDoc
     */
    @Override
-   public Stream<MetaPulseId> getMetaPulseIdStream(PulseIdRangeQuery query) {
+   public Stream<MetaPulseId> getMetaStream(PulseIdRangeQuery query) {
 
       return getChannelEventQueryStream(query).map(r -> {
          return (MetaPulseId) r;
@@ -291,11 +295,55 @@ public class DummyCassandraReader implements CassandraReader {
     * @{inheritDoc
     */
    @Override
-   public Stream<MetaTime> getMetaTimeStream(TimeRangeQuery query) {
+   public Stream<? extends MetaChannelEvent> getMetaStream(TimeRangeQuery query) {
 
       return getChannelEventQueryStream(query).map(r -> {
-         return (MetaTime) r;
+         return (MetaChannelEvent) r;
       });
    }
 
+   @Override
+   public Stream<ChannelEvent> getEventStream(Stream<? extends MetaChannelEvent> queryInfos) {
+      return getEventStream(null, queryInfos);
+   }
+
+   @Override
+   public Stream<ChannelConfiguration> getChannelConfiguration(TimeRangeQuery query) {
+      // implement when needed
+      throw new UnsupportedOperationException();
+   }
+
+   @Override
+   public ChannelConfiguration getChannelConfigurationBefore(TimeRangeQuery query) {
+      try {
+         return getChannelConfigurationBeforeAsync(query)
+               .get(30, TimeUnit.SECONDS);
+      } catch (Throwable t) {
+         LOGGER.error("Could not read ChannelConfiguration from DB.", t);
+         return null;
+      }
+   }
+
+   @Override
+   public CompletableFuture<ChannelConfiguration> getChannelConfigurationBeforeAsync(TimeRangeQuery query) {
+      // implement when needed
+      throw new UnsupportedOperationException();
+   }
+
+   @Override
+   public ChannelConfiguration getChannelConfigurationAfter(TimeRangeQuery query) {
+      try {
+         return getChannelConfigurationAfterAsync(query)
+               .get(30, TimeUnit.SECONDS);
+      } catch (Throwable t) {
+         LOGGER.error("Could not read ChannelConfiguration from DB.", t);
+         return null;
+      }
+   }
+
+   @Override
+   public CompletableFuture<ChannelConfiguration> getChannelConfigurationAfterAsync(TimeRangeQuery query) {
+      // implement when needed
+      throw new UnsupportedOperationException();
+   }
 }
diff --git a/src/test/java/ch/psi/daq/test/queryrest/query/DummyDataReader.java b/src/test/java/ch/psi/daq/test/queryrest/query/DummyDataReader.java
index 6620757..4aee732 100644
--- a/src/test/java/ch/psi/daq/test/queryrest/query/DummyDataReader.java
+++ b/src/test/java/ch/psi/daq/test/queryrest/query/DummyDataReader.java
@@ -35,13 +35,13 @@ public class DummyDataReader implements DataReader {
 
    @Override
    public Stream<? extends DataEvent> getEventStream(String channel, long startPulseId, long endPulseId,
-         Ordering ordering, String... columns) {
+         Ordering ordering, boolean aggregateValues, String... columns) {
       return getElements(channel, startPulseId, endPulseId);
    }
 
    @Override
    public Stream<? extends DataEvent> getEventStream(String channel, long startMillis, long startNanos, long endMillis,
-         long endNanos, Ordering ordering, String... columns) {
+         long endNanos, Ordering ordering, boolean aggregateValues, String... columns) {
       return getElements(channel, startMillis / 10, endMillis / 10);
    }
 
@@ -59,6 +59,7 @@ public class DummyDataReader implements DataReader {
                   i,
                   i * 10,
                   0,
+                  1,
                   value
             );
 
@@ -75,6 +76,7 @@ public class DummyDataReader implements DataReader {
                   i,
                   i * 10,
                   0,
+                  1,
                   value,
                   shape
             );
@@ -86,6 +88,7 @@ public class DummyDataReader implements DataReader {
                   i,
                   i * 10,
                   0,
+                  1,
                   i
             );
          }