some compilation refactoring

Data/testsuite/src/TestStatementImpl.cpp

@@ -40,7 +40,8 @@ namespace Test {
 
 
 TestStatementImpl::TestStatementImpl(SessionImpl& rSession):
-	Poco::Data::StatementImpl(rSession)
+	Poco::Data::StatementImpl(rSession),
+	_compiled(false)
 {
 }
 
@@ -50,13 +51,13 @@ TestStatementImpl::~TestStatementImpl()
 }
 
 
-bool TestStatementImpl::compileImpl()
+void TestStatementImpl::compileImpl()
 {
 	// prepare binding
 	_ptrBinder    = new Binder;
 	_ptrExtractor = new Extractor;
 	_ptrPrepare   = new Preparation;
-	return false;
+	_compiled = true;
 }
 
 

Data/testsuite/src/TestStatementImpl.h

@@ -83,7 +83,10 @@ protected:
 	bool canBind() const;
 		/// Returns true if a valid statement is set and we can bind.
 
-	bool compileImpl();
+	bool canCompile() const;
+		/// Returns true if statement was not compiled.
+
+	void compileImpl();
 		/// Compiles the statement, doesn't bind yet
 
 	void bindImpl();
@@ -96,9 +99,10 @@ protected:
 		/// Returns the concrete binder used by the statement.
 
 private:
-	Poco::SharedPtr<Binder>    _ptrBinder;
-	Poco::SharedPtr<Extractor> _ptrExtractor;
+	Poco::SharedPtr<Binder>      _ptrBinder;
+	Poco::SharedPtr<Extractor>   _ptrExtractor;
 	Poco::SharedPtr<Preparation> _ptrPrepare;
+	bool                         _compiled; 
 };
 
 
@@ -123,6 +127,12 @@ inline Poco::UInt32 TestStatementImpl::affectedRowCount() const
 }
 
 
+inline bool TestStatementImpl::canCompile() const
+{
+	return !_compiled;
+}
+
+
 } } } // namespace Poco::Data::Test