Index: trunk/CrossPare/src/de/ugoe/cs/cpdp/training/FixClass.java
===================================================================
--- trunk/CrossPare/src/de/ugoe/cs/cpdp/training/FixClass.java	(revision 31)
+++ trunk/CrossPare/src/de/ugoe/cs/cpdp/training/FixClass.java	(revision 31)
@@ -0,0 +1,90 @@
+package de.ugoe.cs.cpdp.training;
+
+import weka.classifiers.AbstractClassifier;
+import weka.classifiers.Classifier;
+import weka.core.Capabilities;
+import weka.core.Instance;
+import weka.core.Instances;
+import weka.core.Utils;
+import weka.core.Capabilities.Capability;
+
+/**
+ * Simple classifier that always predicts the same class
+ * 
+ * @author Steffen Herbold
+ */
+public class FixClass extends AbstractClassifier implements ITrainingStrategy, IWekaCompatibleTrainer {
+
+	private static final long serialVersionUID = 1L;
+
+	private double fixedClassValue = 0.0d;
+
+	/**
+	 * Returns default capabilities of the classifier.
+	 * 
+	 * @return the capabilities of this classifier
+	 */
+	@Override
+	public Capabilities getCapabilities() {
+		Capabilities result = super.getCapabilities();
+		result.disableAll();
+
+		// attributes
+		result.enable(Capability.NOMINAL_ATTRIBUTES);
+		result.enable(Capability.NUMERIC_ATTRIBUTES);
+		result.enable(Capability.DATE_ATTRIBUTES);
+		result.enable(Capability.STRING_ATTRIBUTES);
+		result.enable(Capability.RELATIONAL_ATTRIBUTES);
+		result.enable(Capability.MISSING_VALUES);
+
+		// class
+		result.enable(Capability.NOMINAL_CLASS);
+		result.enable(Capability.NUMERIC_CLASS);
+		result.enable(Capability.MISSING_CLASS_VALUES);
+
+		// instances
+		result.setMinimumNumberInstances(0);
+
+		return result;
+	}
+
+	@Override
+	public void setOptions(String[] options) throws Exception {
+		fixedClassValue = Double.parseDouble(Utils.getOption('C', options));
+	}
+
+	@Override
+	public double classifyInstance(Instance instance) {
+		return fixedClassValue;
+	}
+
+	@Override
+	public void buildClassifier(Instances traindata) throws Exception {
+		// do nothing
+	}
+
+	@Override
+	public void setParameter(String parameters) {
+		try {
+			this.setOptions(parameters.split(" "));
+		} catch (Exception e) {
+			e.printStackTrace();
+		}		
+	}
+
+	@Override
+	public void apply(Instances traindata) {
+		// do nothing!
+	}
+
+	@Override
+	public String getName() {
+		return "FixClass";
+	}
+
+	@Override
+	public Classifier getClassifier() {
+		return this;
+	}
+
+}