private SqlString GenerateLockString()
{
ISessionFactoryImplementor factory = lockable.Factory;
SqlUpdateBuilder update = new SqlUpdateBuilder(factory.Dialect, factory);
update.SetTableName(lockable.RootTableName);
update.SetIdentityColumn(lockable.RootTableIdentifierColumnNames, lockable.IdentifierType);
update.SetVersionColumn(new string[] { lockable.VersionColumnName }, lockable.VersionType);
update.AddColumns(new string[] { lockable.VersionColumnName }, null, lockable.VersionType);
if (factory.Settings.IsCommentsEnabled)
{
update.SetComment(lockMode + " lock " + lockable.EntityName);
}
return update.ToSqlString();
}
/// <summary>
/// Generate the SQL UPDATE that updates a foreign key to a value
/// </summary>
/// <returns></returns>
protected override SqlCommandInfo GenerateInsertRowString()
{
SqlUpdateBuilder update = new SqlUpdateBuilder(Factory);
update.SetTableName(qualifiedTableName)
.AddColumns(KeyColumnNames, KeyType)
.SetIdentityColumn(ElementColumnNames, ElementType);
if (HasIndex)
{
update.AddColumns(IndexColumnNames, IndexType);
}
//identifier collections not supported for 1-to-many
return update.ToSqlCommandInfo();
}
/// <summary>
/// Generate the SQL UPDATE that updates a particular row's foreign
/// key to null
/// </summary>
/// <returns></returns>
protected override SqlCommandInfo GenerateDeleteRowString()
{
SqlUpdateBuilder update = new SqlUpdateBuilder(Factory);
update.SetTableName(qualifiedTableName)
.AddColumns(KeyColumnNames, "null");
if (HasIndex /* && TODO H3: !indexContainsFormula */)
{
update.AddColumns(IndexColumnNames, "null");
}
update.AddWhereFragment(KeyColumnNames, KeyType, " = ")
.AddWhereFragment(ElementColumnNames, ElementType, " = ");
return update.ToSqlCommandInfo();
}
public void UpdateStringSqlTest()
{
Configuration cfg = new Configuration();
ISessionFactory factory = cfg.BuildSessionFactory();
ISessionFactoryImplementor factoryImpl = (ISessionFactoryImplementor) factory;
SqlUpdateBuilder update = new SqlUpdateBuilder(factoryImpl.Dialect, factoryImpl);
update.SetTableName("test_update_builder");
update.AddColumns(new string[] {"intColumn"}, NHibernateUtil.Int32);
update.AddColumns(new string[] {"longColumn"}, NHibernateUtil.Int64);
update.AddColumn("literalColumn", false, (ILiteralType) NHibernateUtil.Boolean);
update.AddColumn("stringColumn", 5.ToString());
update.SetIdentityColumn(new string[] {"decimalColumn"}, NHibernateUtil.Decimal);
update.SetVersionColumn(new string[] {"versionColumn"}, (IVersionType) NHibernateUtil.Int32);
update.AddWhereFragment("a=b");
SqlCommandInfo sqlCommand = update.ToSqlCommandInfo();
Assert.AreEqual(CommandType.Text, sqlCommand.CommandType);
string falseString = factoryImpl.Dialect.ToBooleanValueString(false);
string expectedSql =
"UPDATE test_update_builder SET intColumn = ?, longColumn = ?, literalColumn = " + falseString + ", stringColumn = 5 WHERE decimalColumn = ? AND versionColumn = ? AND a=b";
Assert.AreEqual(expectedSql, sqlCommand.Text.ToString(), "SQL String");
SqlType[] actualParameterTypes = sqlCommand.ParameterTypes;
Assert.AreEqual(4, actualParameterTypes.Length, "Four parameters");
SqlType[] expectedParameterTypes = new SqlType[]
{
SqlTypeFactory.Int32,
SqlTypeFactory.Int64,
SqlTypeFactory.Decimal,
SqlTypeFactory.Int32
};
Assert.AreEqual(expectedParameterTypes[0], actualParameterTypes[0], "firstParam Type");
Assert.AreEqual(expectedParameterTypes[1], actualParameterTypes[1], "secondParam Type");
Assert.AreEqual(expectedParameterTypes[2], actualParameterTypes[2], "thirdParam Type");
Assert.AreEqual(expectedParameterTypes[3], actualParameterTypes[3], "fourthParam Type");
}
/// <summary>
/// Generate the SQL UPDATE that updates a particular row's foreign
/// key to null
/// </summary>
/// <returns></returns>
protected override SqlString GenerateDeleteRowString( )
{
SqlUpdateBuilder update = new SqlUpdateBuilder( factory );
update.SetTableName( qualifiedTableName )
.AddColumns( KeyColumnNames, "null" );
if( HasIndex )
{
update.AddColumns( IndexColumnNames, "null" );
}
if( hasIdentifier )
{
update.AddWhereFragment( rowSelectColumnNames, rowSelectType, " = " );
}
else
{
update.AddWhereFragment( KeyColumnNames, KeyType, " = " );
update.AddWhereFragment( rowSelectColumnNames, rowSelectType, " = " );
}
return update.ToSqlString();
}
private SqlCommandInfo GenerateVersionIncrementUpdateString()
{
SqlUpdateBuilder update = new SqlUpdateBuilder(Factory.Dialect, Factory);
update.SetTableName(GetTableName(0));
if (Factory.Settings.IsCommentsEnabled)
{
update.SetComment("forced version increment");
}
update.AddColumn(VersionColumnName, VersionType);
update.SetIdentityColumn(IdentifierColumnNames, IdentifierType);
update.SetVersionColumn(new string[] { VersionColumnName }, VersionType);
return update.ToSqlCommandInfo();
}
/// <summary>
/// Generate the SQL UPDATE that updates a foreign key to a value
/// </summary>
/// <returns></returns>
protected override SqlCommandInfo GenerateInsertRowString()
{
var update = new SqlUpdateBuilder(Factory.Dialect, Factory);
update.SetTableName(qualifiedTableName)
.AddColumns(KeyColumnNames, KeyType);
if (HasIndex && !indexContainsFormula)
update.AddColumns(IndexColumnNames, IndexType);
//identifier collections not supported for 1-to-many
if (Factory.Settings.IsCommentsEnabled)
update.SetComment("create one-to-many row " + Role);
update.SetIdentityColumn(ElementColumnNames, ElementType);
return update.ToSqlCommandInfo();
}
/// <summary>
/// Generate the SQL UPDATE that updates a particular row's foreign
/// key to null
/// </summary>
/// <returns></returns>
protected override SqlCommandInfo GenerateDeleteRowString()
{
var update = new SqlUpdateBuilder(Factory.Dialect, Factory);
update.SetTableName(qualifiedTableName)
.AddColumns(KeyColumnNames, "null");
if (HasIndex && !indexContainsFormula)
update.AddColumns(IndexColumnNames, "null");
if (Factory.Settings.IsCommentsEnabled)
update.SetComment("delete one-to-many row " + Role);
//use a combination of foreign key columns and pk columns, since
//the ordering of removal and addition is not guaranteed when
//a child moves from one parent to another
update
.AddWhereFragment(KeyColumnNames, KeyType, " = ")
.AddWhereFragment(ElementColumnNames, ElementType, " = ");
return update.ToSqlCommandInfo();
}
