[Nhibernate-commit] SF.net SVN: nhibernate:[5061] trunk/nhibernate/src/NHibernate/Tool/hbm2ddl/ SchemaExport.cs

[<fab...@us...>]

Revision: 5061
          http://nhibernate.svn.sourceforge.net/nhibernate/?rev=5061&view=rev
Author:   fabiomaulo
Date:     2010-07-27 17:08:22 +0000 (Tue, 27 Jul 2010)

Log Message:
-----------
Refactoring (lazy initialization of private fields)

Modified Paths:
--------------
    trunk/nhibernate/src/NHibernate/Tool/hbm2ddl/SchemaExport.cs

Modified: trunk/nhibernate/src/NHibernate/Tool/hbm2ddl/SchemaExport.cs
===================================================================
--- trunk/nhibernate/src/NHibernate/Tool/hbm2ddl/SchemaExport.cs	2010-07-26 09:30:53 UTC (rev 5060)
+++ trunk/nhibernate/src/NHibernate/Tool/hbm2ddl/SchemaExport.cs	2010-07-27 17:08:22 UTC (rev 5061)
@@ -21,13 +21,15 @@
 	public class SchemaExport
 	{
 		private static readonly ILog log = LogManager.GetLogger(typeof (SchemaExport));
+		private bool wasInitialized;
+		private readonly Configuration cfg;
 		private readonly IDictionary<string, string> configProperties;
-		private readonly string[] createSQL;
-		private readonly Dialect.Dialect dialect;
-		private readonly string[] dropSQL;
+		private string[] createSQL;
+		private Dialect.Dialect dialect;
+		private string[] dropSQL;
+		private IFormatter formatter;
 		private string delimiter;
 		private string outputFile;
-		private readonly IFormatter formatter;
 
 		/// <summary>
 		/// Create a schema exported for a given Configuration
@@ -43,11 +45,21 @@
 		/// <param name="configProperties">The Properties to use when connecting to the Database.</param>
 		public SchemaExport(Configuration cfg, IDictionary<string, string> configProperties)
 		{
+			this.cfg = cfg;
 			this.configProperties = configProperties;
+		}
+
+		private void Initialize()
+		{
+			if(wasInitialized)
+			{
+				return;
+			}
 			dialect = Dialect.Dialect.GetDialect(configProperties);
 			dropSQL = cfg.GenerateDropSchemaScript(dialect);
 			createSQL = cfg.GenerateSchemaCreationScript(dialect);
 			formatter = (PropertiesHelper.GetBoolean(Environment.FormatSql, configProperties, true) ? FormatStyle.Ddl : FormatStyle.None).Formatter;
+			wasInitialized = true;
 		}
 
 		/// <summary>
@@ -108,6 +120,7 @@
 		private void Execute(Action<string> scriptAction, bool export, bool throwOnError, TextWriter exportOutput,
 		                     IDbCommand statement, string sql)
 		{
+			Initialize();
 			try
 			{
 				string formatted = formatter.Format(sql);
@@ -196,6 +209,7 @@
 		public void Execute(Action<string> scriptAction, bool export, bool justDrop, IDbConnection connection,
 		                    TextWriter exportOutput)
 		{
+			Initialize();
 			IDbCommand statement = null;
 
 			if (export && connection == null)
@@ -272,6 +286,7 @@
 
 		public void Execute(Action<string> scriptAction, bool export, bool justDrop)
 		{
+			Initialize();
 			IDbConnection connection = null;
 			StreamWriter fileOutput = null;
 			IConnectionProvider connectionProvider = null;


This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.