maj

src/main/java/com/jh/boot/web/Converter.java

 package com.jh.boot.web;
 
-import com.jh.boot.jpa.AbstractIdEntity;
-import com.jh.boot.web.list.Page;
-import com.jh.boot.web.list.SortTrend;
-
 import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
 import java.util.List;
 import java.util.function.Function;
 import java.util.stream.Collectors;
 
+import com.jh.boot.jpa.AbstractIdEntity;
+import com.jh.boot.web.list.Page;
+import com.jh.boot.web.list.SortTrend;
+
 public class Converter {
 
     private Converter() {}
@@ -42,7 +44,22 @@ public class Converter {
 
         return new Page<D>(page.getPage(), page.getPagesCount(), page.getPageSize(), page.getTotalElements(), content, page.getSortBy(), SortTrend.parse(page.getTrend()));
     }
+    
+    
+    public static <T> List<IdNameDto> mapToDtos(Collection<T> collection, Function<T, Long> getId, Function<T, String> getName) {
+    	if (collection == null || collection.isEmpty() || getId == null || getName == null) {
+    		return Collections.emptyList();
+    	}
+    	
+    	List<IdNameDto> result = new ArrayList<IdNameDto>();
+    	for (T t : collection) {
+    		result.add(new IdNameDto(getId.apply(t), getName.apply(t)));
+    	}
+    	return result;
+    }
 
+    //public static <T> T toEntity(IdNameDto )
+    
     /**
      * Helper function to safely get id
      *

src/main/java/com/jh/boot/web/IdNameDto.java

+package com.jh.boot.web;
+
+public class IdNameDto {
+
+	private Long id;
+	
+	private String name;
+
+	public IdNameDto() {
+		
+	}
+	
+	public IdNameDto(Long id, String name) {
+		super();
+		this.id = id;
+		this.name = name;
+	}
+
+	public Long getId() {
+		return id;
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+	
+	
+	
+}