1 files changed, 111 insertions, 0 deletions
diff --git a/elki/src/main/java/de/lmu/ifi/dbs/elki/utilities/optionhandling/parameterization/UnParameterization.java b/elki/src/main/java/de/lmu/ifi/dbs/elki/utilities/optionhandling/parameterization/UnParameterization.java
new file mode 100644
index 00000000..a1d58676
--- /dev/null
+++ b/elki/src/main/java/de/lmu/ifi/dbs/elki/utilities/optionhandling/parameterization/UnParameterization.java
@@ -0,0 +1,111 @@
+package de.lmu.ifi.dbs.elki.utilities.optionhandling.parameterization;
+
+/*
+ This file is part of ELKI:
+ Environment for Developing KDD-Applications Supported by Index-Structures
+
+ Copyright (C) 2015
+ Ludwig-Maximilians-Universität München
+ Lehr- und Forschungseinheit für Datenbanksysteme
+ ELKI Development Team
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import de.lmu.ifi.dbs.elki.utilities.ClassGenericsUtil;
+import de.lmu.ifi.dbs.elki.utilities.optionhandling.InternalParameterizationErrors;
+import de.lmu.ifi.dbs.elki.utilities.optionhandling.ParameterException;
+import de.lmu.ifi.dbs.elki.utilities.optionhandling.constraints.GlobalParameterConstraint;
+import de.lmu.ifi.dbs.elki.utilities.optionhandling.parameters.Parameter;
+
+/**
+ * Parameterization handler that doesn't set any parameters.
+ * 
+ * This is mostly useful for documentation purposes, listing all parameters
+ * in a non-recursive way.
+ * 
+ * @author Erich Schubert
+ */
+public class UnParameterization implements Parameterization {  
+  /**
+   * Errors
+   */
+  List<ParameterException> errors = new ArrayList<>();
+
+  @Override
+  public boolean hasUnusedParameters() {
+    return false;
+  }
+
+  @Override
+  public boolean checkConstraint(GlobalParameterConstraint constraint) {
+    return false;
+  }
+
+  @Override
+  public Collection<ParameterException> getErrors() {
+    return errors;
+  }
+
+  @Override
+  public boolean hasErrors() {
+    return errors.size() > 0;
+  }
+
+  @Override
+  public boolean grab(Parameter<?> opt) {
+    return false;
+  }
+
+  @Override
+  public void reportError(ParameterException e) {
+    errors.add(e);
+  }
+
+  @Override
+  public boolean setValueForOption(Parameter<?> opt) {
+    return false;
+  }
+
+  @Override
+  public Parameterization descend(Object option) {
+    return this;
+  }
+  
+  @Override
+  public <C> C tryInstantiate(Class<C> r, Class<?> c) {
+    try {
+      return ClassGenericsUtil.tryInstantiate(r, c, this);
+    }
+    catch(Exception e) {
+      reportError(new InternalParameterizationErrors("Error instantiating internal class: "+c.getName(), e));
+      return null;
+    }
+  }
+
+  @Override
+  public <C> C tryInstantiate(Class<C> c) {
+    try {
+      return ClassGenericsUtil.tryInstantiate(c, c, this);
+    }
+    catch(Exception e) {
+      reportError(new InternalParameterizationErrors("Error instantiating internal class: "+c.getName(), e));
+      return null;
+    }
+  }
+}
+\ No newline at end of file