AxisProjectPages/DotNetInteropMapInfo

Q: Can you provide a recommendation of how to transport a java.util.Map to C#?

A: The easiest solution is to implement a typed array with a JavaBean.

   public class MapEntryVO { 
     private Object  key; 
     private Object  value; 

     public MapEntryVO() { 
     } 

     public MapEntryVO(Object key, Object value) { 
       this.key   = key; 
       this.value = value; 
     } 

     public Object getKey() { 
       return key; 
     } 
     public void setKey(Object value) { 
       key = value; 
     } 

     public Object getValue() { 
       return value; 
     } 
     public void setValue(Object value) { 
       this.value = value; 
     } 
   } 

{{{ import java.util.*;

• public class WebServicesUtils {

  • public static MapEntryVO[] convertMapToMapEntryVO(Map conv) {
    • MapEntryVO[] result = new MapEntryVO[conv.size()]; int i = 0; Iterator iter = conv.entrySet().iterator(); while (iter.hasNext()) {
      • Map.Entry item = (Map.Entry) iter.next(); result[i++] = new MapEntryVO(item.getKey(),item.getValue());
      } return result;
    }
  } }}}

{{{ // Example WebService

• public class TestService {

  • public MapEntryVO[] testMethod() {

    • java.util.Map value = new java.util.HashMap(); value.put("Key 1","Value 1"); value.put("Key 2","Value 2");

      return WebServicesUtils.convertMapToMapEntryVO(value);

    }
  }

• }}}