#1415 - Add asDto(Class<D> dtoClass) ... to ExpressionList to support fluid style

src/main/java/io/ebean/ExpressionList.java

@@ -120,6 +120,14 @@ public interface ExpressionList<T> {
    */
   Query<T> asDraft();
 
+  /**
+   * Convert the query to a DTO bean query.
+   * <p>
+   * We effectively use the underlying ORM query to build the SQL and then execute
+   * and map it into DTO beans.
+   */
+  <D> DtoQuery<D> asDto(Class<D> dtoClass);
+
   /**
    * Execute using "for update" clause which results in the DB locking the record.
    */

src/main/java/io/ebeaninternal/server/expression/DefaultExpressionList.java

@@ -2,6 +2,7 @@ package io.ebeaninternal.server.expression;
 
 import io.ebean.CacheMode;
 import io.ebean.CountDistinctOrder;
+import io.ebean.DtoQuery;
 import io.ebean.Expression;
 import io.ebean.ExpressionFactory;
 import io.ebean.ExpressionList;
@@ -294,6 +295,11 @@ public class DefaultExpressionList<T> implements SpiExpressionList<T> {
     return query.asDraft();
   }
 
+  @Override
+  public <D> DtoQuery<D> asDto(Class<D> dtoClass) {
+    return query.asDto(dtoClass);
+  }
+
   @Override
   public Query<T> setIncludeSoftDeletes() {
     return query.setIncludeSoftDeletes();

src/main/java/io/ebeaninternal/server/expression/JunctionExpression.java

@@ -2,6 +2,7 @@ package io.ebeaninternal.server.expression;
 
 import io.ebean.CacheMode;
 import io.ebean.CountDistinctOrder;
+import io.ebean.DtoQuery;
 import io.ebean.Expression;
 import io.ebean.ExpressionList;
 import io.ebean.FetchPath;
@@ -331,6 +332,11 @@ class JunctionExpression<T> implements SpiJunction<T>, SpiExpression, Expression
     return exprList.asDraft();
   }
 
+  @Override
+  public <D> DtoQuery<D> asDto(Class<D> dtoClass) {
+    return exprList.asDto(dtoClass);
+  }
+
   @Override
   public Query<T> setIncludeSoftDeletes() {
     return exprList.setIncludeSoftDeletes();