querydsl-collections/src/main/java/com/mysema/query/collections/MiniApi.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2008 Mysema Ltd.
+ * All rights reserved.
+ * 
+ */
+package com.mysema.query.collections;
+
+import java.util.Arrays;
+
+import com.mysema.query.grammar.Grammar;
+import com.mysema.query.grammar.GrammarWithAlias;
+import com.mysema.query.grammar.OrderSpecifier;
+import com.mysema.query.grammar.types.Expr;
+import com.mysema.query.grammar.types.Path;
+import com.mysema.query.grammar.types.PathExtractor;
+
+/**
+ * MiniApi provides static convenience methods for query construction
+ *
+ * @author tiwe
+ * @version $Id$
+ */
+public class MiniApi extends GrammarWithAlias{
+    
+    public static <A> ColQuery<?> from(Expr<A> path, A... arr){
+        return from(path, Arrays.asList(arr));
+    }
+    
+    @SuppressWarnings("unchecked")
+    public static <A> ColQuery<?> from(Expr<A> path, Iterable<A> col){
+        return new ColQuery().from((Path<?>)path, col);
+    }
+    
+    @SuppressWarnings("unchecked")
+    public static <A> Iterable<A> select(Iterable<A> from, Expr.EBoolean where, OrderSpecifier<?>... order){
+        Path<A> path = (Path<A>) new PathExtractor().handle(where).getPath();
+        ColQuery query = new ColQuery().from(path, from).where(where).orderBy(order);
+        return query.iterate((Expr<A>)path);
+    }
+                
+    public static <A> Iterable<A> reject(Iterable<A> from, Expr.EBoolean where, OrderSpecifier<?>...order){
+        return select(from, Grammar.not(where), order);
+    }
+             
+}