runtime/org.argeo.slc.core/src/main/java/org/argeo/slc/core/execution/tasks/MergedLists.java

   1 package org.argeo.slc.core.execution.tasks;
   2
   3 import java.util.ArrayList;
   4 import java.util.List;
   5
   6 import org.springframework.beans.factory.FactoryBean;
   7
   8 /** Merge the provided lists in one single list, in the order provided. */
   9 public class MergedLists implements FactoryBean {
  10         private List<List<Object>> lists = new ArrayList<List<Object>>();
  11
  12         public void setLists(List<List<Object>> lists) {
  13                 this.lists = lists;
  14         }
  15
  16         public Object getObject() throws Exception {
  17                 List<Object> merged = new ArrayList<Object>();
  18                 for (List<Object> lst : lists) {
  19                         merged.addAll(lst);
  20                 }
  21                 return merged;
  22         }
  23
  24         public Class<?> getObjectType() {
  25                 return List.class;
  26         }
  27
  28         public boolean isSingleton() {
  29                 return false;
  30         }
  31
  32 }