added DefaultMetadata and QueryMetadata

updated Serializers and Query implementations to use them

querydsl-core/src/main/java/com/mysema/query/CascadingBoolean.java

@@ -36,5 +36,9 @@ public class CascadingBoolean {
     public Expr.EBoolean create(){
         return expr;
     }
+    
+    public String toString(){
+        return expr != null ? expr.toString() : super.toString();
+    }
 
 }

querydsl-core/src/main/java/com/mysema/query/DefaultMetadata.java

@@ -0,0 +1,79 @@
+package com.mysema.query;
+
+import java.util.List;
+
+import com.mysema.query.grammar.OrderSpecifier;
+import com.mysema.query.grammar.types.Expr;
+import com.mysema.query.grammar.types.Expr.EBoolean;
+
+/**
+ * DefaultMetadata provides
+ *
+ * @author tiwe
+ * @version $Id$
+ */
+public class DefaultMetadata<JoinMeta> implements QueryMetadata<JoinMeta>{
+
+    private List<? extends Expr<?>> groupBy;
+    
+    private EBoolean having;
+
+    private List<JoinExpression<JoinMeta>> joins;
+
+    private List<OrderSpecifier<?>> orderBy;
+
+    private List<? extends Expr<?>> select;
+
+    private EBoolean where;
+
+    public List<? extends Expr<?>> getGroupBy() {
+        return groupBy;
+    }
+
+    public void setGroupBy(List<? extends Expr<?>> groupBy) {
+        this.groupBy = groupBy;
+    }
+
+    public EBoolean getHaving() {
+        return having;
+    }
+
+    public void setHaving(EBoolean having) {
+        this.having = having;
+    }
+
+    public List<JoinExpression<JoinMeta>> getJoins() {
+        return joins;
+    }
+
+    public void setJoins(List<JoinExpression<JoinMeta>> joins) {
+        this.joins = joins;
+    }
+
+    public List<OrderSpecifier<?>> getOrderBy() {
+        return orderBy;
+    }
+
+    public void setOrderBy(List<OrderSpecifier<?>> orderBy) {
+        this.orderBy = orderBy;
+    }
+
+    public List<? extends Expr<?>> getSelect() {
+        return select;
+    }
+
+    public void setSelect(List<? extends Expr<?>> select) {
+        this.select = select;
+    }
+
+    public EBoolean getWhere() {
+        return where;
+    }
+
+    public void setWhere(EBoolean where) {
+        this.where = where;
+    }
+    
+    
+    
+}

querydsl-core/src/main/java/com/mysema/query/QueryBase.java

@@ -46,7 +46,26 @@ public class QueryBase<JoinMeta,SubType extends QueryBase<JoinMeta,SubType>> imp
     
     protected String toString;
     
-    private final Metadata metadata = new Metadata();
+    private final QueryMetadata<JoinMeta> metadata = new QueryMetadata<JoinMeta>(){
+        public List<Expr<?>> getGroupBy() {
+            return groupBy;
+        }
+        public EBoolean getHaving() {
+            return having.create();
+        }
+        public List<JoinExpression<JoinMeta>> getJoins() {
+            return joins;
+        }
+        public List<OrderSpecifier<?>> getOrderBy() {
+            return orderBy;
+        }
+        public List<Expr<?>> getSelect() {
+            return select;
+        }
+        public EBoolean getWhere() {
+            return where.create();
+        }
+    };
     
     public SubType from(Expr<?>... o) {        
         for (Expr<?> expr : o){
@@ -110,7 +129,7 @@ public class QueryBase<JoinMeta,SubType extends QueryBase<JoinMeta,SubType>> imp
         return _this;
     }
         
-    public Metadata getMetadata(){
+    public QueryMetadata<JoinMeta> getMetadata(){
         return metadata;
     }
     
@@ -118,28 +137,5 @@ public class QueryBase<JoinMeta,SubType extends QueryBase<JoinMeta,SubType>> imp
         return e;
     }
     
-    /**
-     * The Class Metadata.
-     */
-    public class Metadata{
-        public List<Expr<?>> getGroupBy() {
-            return groupBy;
-        }
-        public EBoolean getHaving() {
-            return having.create();
-        }
-        public List<JoinExpression<JoinMeta>> getJoins() {
-            return joins;
-        }
-        public List<OrderSpecifier<?>> getOrderBy() {
-            return orderBy;
-        }
-        public List<Expr<?>> getSelect() {
-            return select;
-        }
-        public EBoolean getWhere() {
-            return where.create();
-        }
-    }
 
 }

querydsl-core/src/main/java/com/mysema/query/QueryMetadata.java

@@ -0,0 +1,29 @@
+package com.mysema.query;
+
+import java.util.List;
+
+import com.mysema.query.grammar.OrderSpecifier;
+import com.mysema.query.grammar.types.Expr;
+import com.mysema.query.grammar.types.Expr.EBoolean;
+
+/**
+ * QueryMetadata provides
+ *
+ * @author tiwe
+ * @version $Id$
+ */
+public interface QueryMetadata<JoinMeta> {
+
+    List<? extends Expr<?>> getGroupBy();
+
+    EBoolean getHaving();
+
+    List<JoinExpression<JoinMeta>> getJoins();
+
+    List<OrderSpecifier<?>> getOrderBy();
+
+    List<? extends Expr<?>> getSelect();
+
+    EBoolean getWhere();
+
+}

querydsl-core/src/main/java/com/mysema/query/grammar/Order.java

@@ -12,5 +12,14 @@ package com.mysema.query.grammar;
  * @version $Id$
  */
 public enum Order {
-    ASC, DESC
+    ASC{
+        public String toString(){
+            return "asc";
+        }
+    }, 
+    DESC{
+        public String toString(){
+            return "desc";
+        }
+    }
 }

querydsl-core/src/main/java/com/mysema/query/grammar/OrderSpecifier.java

@@ -18,4 +18,8 @@ import com.mysema.query.grammar.types.Expr;
 public class OrderSpecifier<A extends Comparable<? super A>> {
     public Order order;
     public Expr<A> target;
+    
+    public String toString(){
+        return target + " " + order;
+    }
 }