diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IGenericDatasetAdapterFactory.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IGenericDatasetAdapterFactory.java
deleted file mode 100644
index c9d04cf..0000000
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IGenericDatasetAdapterFactory.java
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright 2009-2013 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.metadata.feeds;
-
-import java.util.Map;
-
-import edu.uci.ics.asterix.om.types.IAType;
-
-/**
- * A base interface for an adapter factory that creates instance of an adapter kind that
- * is 'generic' in nature. A 'typed' adapter returns records with a configurable datatype.
- */
-public interface IGenericDatasetAdapterFactory extends IAdapterFactory {
-
-    public static final String KEY_TYPE_NAME = "output-type-name";
-
-    /**
-     * Creates an instance of IDatasourceAdapter.
-     * 
-     * @param configuration
-     *            The configuration parameters for the adapter that is instantiated.
-     *            The passed-in configuration is used to configure the created instance of the adapter.
-     * @param atype
-     *            The type for the ADM records that are returned by the adapter.
-     * @return An instance of IDatasourceAdapter.
-     * @throws Exception
-     */
-    public IDatasourceAdapter createAdapter(Map<String, Object> configuration, IAType atype) throws Exception;
-
-}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IManagedFeedAdapter.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IManagedFeedAdapter.java
deleted file mode 100644
index 23d582d..0000000
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/IManagedFeedAdapter.java
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Copyright 2009-2013 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.metadata.feeds;
-
-import java.util.Map;
-
-/**
- * Interface implemented by an adapter that can be controlled or managed by external
- * commands (stop,alter)
- */
-public interface IManagedFeedAdapter {
-
-    /**
-     * Discontinue the ingestion of data and end the feed.
-     * 
-     * @throws Exception
-     */
-    public void stop() throws Exception;
-
-    /**
-     * Modify the adapter configuration parameters. This method is called
-     * when the configuration parameters need to be modified while the adapter
-     * is ingesting data in an active feed.
-     * 
-     * @param properties
-     *            A HashMap containing the set of configuration parameters
-     *            that need to be altered.
-     */
-    public void alter(Map<String, Object> properties);
-
-}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/ITypedDatasetAdapterFactory.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/ITypedDatasetAdapterFactory.java
deleted file mode 100644
index 7bfa24f..0000000
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/ITypedDatasetAdapterFactory.java
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright 2009-2013 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.metadata.feeds;
-
-import java.util.Map;
-
-/**
- * A base interface for an adapter factory that creates instance of an adapter kind that
- * is 'typed' in nature. A 'typed' adapter returns records with a pre-defined datatype.
- */
-public interface ITypedDatasetAdapterFactory extends IAdapterFactory {
-
-    /**
-     * Creates an instance of IDatasourceAdapter.
-     * 
-     * @param configuration
-     *            The configuration parameters for the adapter that is instantiated.
-     *            The passed-in configuration is used to configure the created instance of the adapter.
-     * @return An instance of IDatasourceAdapter.
-     * @throws Exception
-     */
-    public IDatasourceAdapter createAdapter(Map<String, Object> configuration) throws Exception;
-
-}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/ITypedDatasourceAdapter.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/ITypedDatasourceAdapter.java
deleted file mode 100644
index 08df1eb..0000000
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/ITypedDatasourceAdapter.java
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright 2009-2013 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.metadata.feeds;
-
-import edu.uci.ics.asterix.metadata.feeds.IDatasourceAdapter;
-import edu.uci.ics.asterix.om.types.ARecordType;
-
-/**
- * Implemented by datasource adapter that has a fixed output type.
- * Example @see {PullBasedTwitterAdapter}
- */
-public interface ITypedDatasourceAdapter extends IDatasourceAdapter {
-
-    public ARecordType getAdapterOutputType();
-
-}