first commit

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

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+package net.sf.jasperreports.engine.fill;
+
+import java.util.HashMap;
+import java.util.Map;
+import net.sf.jasperreports.engine.JRRuntimeException;
+
+public class JRIncrementerFactoryCache {
+  private static Map factoriesMap = null;
+  
+  public static synchronized JRIncrementerFactory getInstance(Class factoryClass) {
+    if (factoriesMap == null)
+      factoriesMap = new HashMap(); 
+    JRIncrementerFactory incrementerFactory = (JRIncrementerFactory)factoriesMap.get(factoryClass.getName());
+    if (incrementerFactory == null) {
+      try {
+        incrementerFactory = factoryClass.newInstance();
+      } catch (InstantiationException e) {
+        throw new JRRuntimeException(e);
+      } catch (IllegalAccessException e) {
+        throw new JRRuntimeException(e);
+      } 
+      factoriesMap.put(factoryClass.getName(), incrementerFactory);
+    } 
+    return incrementerFactory;
+  }
+}