added conversions

querydsl-scala/src/main/scala/com/mysema/query/scala/Queries.scala

@@ -0,0 +1,28 @@
+package com.mysema.query.scala;
+
+import com.mysema.query._;
+import com.mysema.query.types._;
+
+object Queries {
+    
+  implicit def toScalaProjectable(qry: Projectable) = new ScalaProjectable(qry)
+  
+  implicit def toScalaProjectable[T](qry: SimpleProjectable[T]) = new SimpleScalaProjectable[T](qry);
+    
+}
+
+class ScalaProjectable(val qry: Projectable) {
+    
+  def unique[T](e: Expression[T]) = Option(qry.uniqueResult(e))
+    
+  def single[T](e: Expression[T]) = Option(qry.singleResult(e))
+    
+}
+
+class SimpleScalaProjectable[T](val qry: SimpleProjectable[T]) {
+    
+  def unique = Option(qry.uniqueResult())
+    
+  def single = Option(qry.singleResult())
+    
+}

querydsl-scala/src/test/scala/com/mysema/query/scala/QueriesTest.scala

@@ -0,0 +1,35 @@
+package com.mysema.query.scala;
+
+//import com.mysema.query._
+import com.mysema.query.types._
+import com.mysema.query.scala.Queries._
+import com.mysema.query.scala.Conversions._
+
+import com.mysema.query.jpa.impl.JPAQuery
+import com.mysema.query.scala.Conversions._
+
+import javax.persistence._;
+import org.junit.{ Test, Before, After };
+import org.junit.Assert._
+
+class QueriesTest {
+    
+  var entityManager: EntityManager = _;
+  val user = alias(classOf[User])
+  val department = alias(classOf[Department])
+  val company = alias(classOf[Company])
+
+  @Before 
+  def before {
+    var entityManagerFactory = Persistence.createEntityManagerFactory("hsqldb")
+    entityManager = entityManagerFactory.createEntityManager()
+  }  
+   
+  @Test 
+  def Unique {
+    query from(user) unique(user) getOrElse(new User());  
+  }
+  
+  def query() = new JPAQuery(entityManager)
+  
+}