first commit

hrmsEjb/net/sf/jasperreports/engine/fill/JRByteDistinctCountIncrementer.java

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+package net.sf.jasperreports.engine.fill;
+
+class JRByteDistinctCountIncrementer extends JRAbstractExtendedIncrementer {
+  private static JRByteDistinctCountIncrementer mainInstance = new JRByteDistinctCountIncrementer();
+  
+  public static JRByteDistinctCountIncrementer getInstance() {
+    return mainInstance;
+  }
+  
+  public Object increment(JRCalculable variable, Object expressionValue, AbstractValueProvider valueProvider) {
+    DistinctCountHolder holder = (DistinctCountHolder)valueProvider.getValue(variable.getHelperVariable((byte)0));
+    if (variable.isInitialized())
+      holder.init(); 
+    return new Byte((byte)(int)holder.getCount());
+  }
+  
+  public Object combine(JRCalculable calculable, JRCalculable calculableValue, AbstractValueProvider valueProvider) {
+    DistinctCountHolder holder = (DistinctCountHolder)valueProvider.getValue(calculable.getHelperVariable((byte)0));
+    return new Byte((byte)(int)holder.getCount());
+  }
+  
+  public Object initialValue() {
+    return JRByteIncrementerFactory.ZERO;
+  }
+}