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diff --git a/petascope/src/petascope/wcps/server/core/IDynamicMetadataSource.java b/petascope/src/petascope/wcps/server/core/IDynamicMetadataSource.java
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+++ b/petascope/src/petascope/wcps/server/core/IDynamicMetadataSource.java
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+/*
+ * This file is part of PetaScope.
+ *
+ * PetaScope is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * PetaScope is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with PetaScope. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * For more information please see <http://www.PetaScope.org>
+ * or contact Peter Baumann via <baumann@rasdaman.com>.
+ *
+ * Copyright 2009 Jacobs University Bremen, Peter Baumann.
+ */
+package petascope.wcps.server.core;
+
+/**
+ * A IDynamicMetadataSource is an IMetadataSource that can also add information
+ * about new coverages on-the-fly. This is useful for queries that construct
+ * new coverages (see ConstructCoverage expression) but are not stored in the
+ * database.
+ */
+public interface IDynamicMetadataSource extends IMetadataSource {
+
+    public void addDynamicMetadata(String coverageName, Metadata meta);
+}