I have the following nhibernate cfg file:
<property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
<property name="connection.driver_class">NHibernate.Driver.SQLite20Driver</property>
<property name="connection.connection_string">Data Source=dbFile.db;Version=3</property>
<property name="dialect">NHibernate.Dialect.SQLiteDialect</property>
However this creates and references dbFile.db in the bin/Debug folder. I was wondering if there is any way to refernce another folder i.e. something like .../app/database/dbFile.db?
Thanks in advance
You can set the connection string property from c# code. You have to do this before you call the Configure() method.
var configuration = new Configuration();
config.SetProperty(NHibernate.Cfg.Environment.ConnectionString, myCustomDbPath);
configuration.Configure();
Hope that helps.
Maybe you can use DataDirectory-Property to start from the Exe-Path:
Data Source=|DataDirectory|../app/database/dbFile.db;Version=3
or
Data Source=jdbc:sqlite:../app/database/path.db;Version=3
Edit: After some googling i found out that this probably won't work. if not i would go with striders solution setting the property at runtime.
Related
I need to check if the properties file exists. If it not exists build.xml must use itself property.
<property file="AntHW.properties"/>
<property name="src" location="src"/>
<property name="build" location="build"/>
<property name="dist" location="dist"/>
<property name="docdir" location="javadoc"/>
You don't need to check if it exists. Properties in ant are immutable, once set the values cannot be changed. So you want to import the properties file above your snippet, if the properties exist in that properties file the values are set and will not be overwritten by the snippet.
Maybe you can try
<available property="properties.available" file="path/to/properties/file" />
Now properties.available will tell you whether or on the properties file exists.
I've tried adding bulk inserting to my application, but the Batcher is still NonBatchingBatcher with a BatchSize of 1.
This is using C#3, NH3RC1 and MySql 5.1
I've added this to my SessionFactory
<property name="adonet.batch_size">100</property>
And my code goes pretty much like this
var session = SessionManager.GetStatelessSession(type);
var tx = session.BeginTransaction();
session.Insert(instance);
I'm using HILO identity generation for the instances in question, but not for all instances on the database. The SessionFactory.OpenStatelessSession doesn't take a type, so it can't really know it can do batching on this type, or...?
After some digging into NHibernate, I found something in SettingsFactory.CreateBatcherFactory that might give some additional info
// It defaults to the NonBatchingBatcher
System.Type tBatcher = typeof (NonBatchingBatcherFactory);
// Environment.BatchStrategy == "adonet.factory_class", but I haven't
// defined this in my config file
string batcherClass = PropertiesHelper.GetString(Environment.BatchStrategy, properties, null);
if (string.IsNullOrEmpty(batcherClass))
{
if (batchSize > 0)
{
// MySqlDriver doesn't implement IEmbeddedBatcherFactoryProvider,
// so it still uses NonBatchingFactory
IEmbeddedBatcherFactoryProvider ebfp = connectionProvider.Driver as IEmbeddedBatcherFactoryProvider;
Could my configuration be wrong?
<hibernate-configuration xmlns="urn:nhibernate-configuration-2.2" >
<session-factory name="my application name">
<property name="adonet.batch_size">100</property>
<property name="connection.driver_class">NHibernate.Driver.MySqlDataDriver</property>
<property name="connection.connection_string">my connection string
</property>
<property name="dialect">NHibernate.Dialect.MySQL5Dialect</property>
<property name="proxyfactory.factory_class">NHibernate.ByteCode.Castle.ProxyFactoryFactory, NHibernate.ByteCode.Castle</property>
<!-- To avoid "The column 'Reserved Word' does not belong to the table : ReservedWords" -->
<property name="hbm2ddl.keywords">none</property>
</session-factory>
</hibernate-configuration>
I know this question is a year old, but there is a NuGet package that adds MySQL batching functionality to NHibernate. The reason that it's not baked directly into NHibernate is that the functionality required a reference to the MySQL.Data assembly, and the dev team didn't want the dependency.
IIRC, batching is currently supported for Oracle and SqlServer only.
As almost any other aspect of NH, this is extensible, so you can write your own IBatcher/IBatcherFactory and inject them via configuration.
Sidenote: current version of NH is 3.0 GA.
Really old question but...let's be completely correct
Another reason for batching not working can be use of stateless session (as in your case). Stateless session does not support batching. From documentation:
The insert(), update() and delete() operations defined by the
StatelessSession interface are considered to be direct database
row-level operations, which result in immediate execution of a SQL
INSERT, UPDATE or DELETE respectively. Thus, they have very different
semantics to the Save(), SaveOrUpdate() and Delete() operations
defined by the ISession interface.
How can I change the connection string from nhibernate.config file using nant
the problem is that all examples are about changing attribute value, but nhibernate has inner text
eq:
<hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
<session-factory>
<property name="connection.connection_string">Data Source.\server;Database=UnitTestDb;UID=user;pwd=pass;</property>
<property name="dialect">NHibernate.Dialect.MsSql2008Dialect</property>
<property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
<property name="connection.driver_class">NHibernate.Driver.SqlClientDriver</property>
<property name="show_sql">true</property>
<property name="connection.release_mode">auto</property>
<property name="adonet.batch_size">500</property>
....
I need to change property connection.connection_string
<xmlpoke file="${nhibernate.file}"
xpath="/hibernate-configuration/session-factory/add[#key='connection.connection_string']/#value"
value="${connection.string}">
</xmlpoke>
this does not work in this case.
Thanks
The sample xpath you're using refers to elements named add with attributes called key. In your case you are looking for property elements with attributes called name.
Next, since you want to change the inner text and not the #value attribute on the property element you should remove the trailing attribute reference.
And finally, since the NHibernate xml has a specific namespace you will have to inform xmlpoke to use the correct namespace.
So the task should look like this:
<xmlpoke file="${nhibernate.file}"
xpath="/nhc:hibernate-configuration/nhc:session-factory/nhc:property[#name='connection.connection_string']"
value="${connection.string}">
<namespaces>
<namespace prefix="nhc" uri="urn:nhibernate-configuration-2.2" />
</namespaces>
</xmlpoke>
Note: I've not tested this out, but general xml/xpath rules are in work here so I hope it works. Also, it could be that there is a way to indicate to xmlpoke that the specified namespace should be the default and thus eliminate the need to namespace prefix all the various parts in the xpath.
Good luck!
I am adding elements to an XML file during installation using the XmlFile element:
<util:XmlFile Id="SetOracleDialectProperty"
Action="createElement"
ElementPath="//hibernate-configuration/session-factory"
Name="property"
Sequence="9"
File="[INSTALLLOCATION]Config\hibernate.config"
Value="NHibernate.Dialect.Oracle10gDialect"/>
The empty file I am writing to looks like this:
<hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
<session-factory>
</session-factory>
</hibernate-configuration>
After running the installer I end up with this:
<hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
<session-factory>
<property xmlns="">NHibernate.Dialect.Oracle10gDialect</property>
</session-factory>
</hibernate-configuration>
The problem is that the empty xmlns attribute is overriding the xmlns specified in the root node of the file so the property element is not recognised correctly by nhibernate.
How can I either set the value to match the root node or remove the xmlns attribute?
I have spent some time searching for an answer and the closest I've found is "do what you would do in MSXML" which doesn't help me as it doesn't say how to do it in WiX (e.g. what attribute on XmlFile to use).
EDIT
To explain Rob's answer slightly, in a place where I can use nice formatting:
You add a document fragment by setting Node="document" on the XmlConfig element.
You have to explicitly set the namespace otherwise you get the default one again.
Also although you're adding a "document" it doesn't seem to work if you specify more than one element. You get a mysterious and thoroughly unhelpful "Setup wizard ended prematurely" runtime error.
So my fixed code looks like this:
<util:XmlConfig Id="MsSqlDialect"
Action="create"
ElementPath="//hibernate-configuration/session-factory"
File="[INSTALLLOCATION]Config\hibernate.config"
Node="document">
<![CDATA[
<property xmlns="urn:nhibernate-configuration-2.2" name="dialect">NHibernate.Dialect.Oracle10gDialect</property>
]]>
</util:XmlConfig>
I know this is years later but if anyone else comes across this I think the true solution is this:
<util:XmlFile Id="SetOracleDialectProperty"
Action="createElement"
ElementPath="//hibernate-configuration/session-factory"
Name="urn:nhibernate-configuration-2.2:property"
Sequence="9"
File="[INSTALLLOCATION]Config\hibernate.config"
Value="NHibernate.Dialect.Oracle10gDialect"/>
change is from Name="property" to Name="urn:nhibernate-configuration-2.2:property" - when config is written it will apprear as just as it will recognize it is the default namespace. I had the same problem adjusting manifest files and this approach sorted it.
The problem here is that MSXML states that createElement will always give you the default namespace (just as you are seeing). I think you'll need to switch to the more complex but more powerful XmlConfig. In this case, try using a document fragment to add the entire element with correct namespace instead of depending on MSXML to create it for you.
I've been trying to work out how to connect to an ESRI shape file (which I think is a DBase table file) through NHibernate but haven't had any luck with anything I've tried.
Currently, my config's looking like this:
<property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
<!--<property name="dialect">NHibernate.Dialect.GenericDialect</property>
<property name="connection.driver_class">NHibernate.Driver.OdbcDriver</property>
<property name="connection.connection_string">Database=A303.dbf;protocol=TCPIP</property>-->
<property name="connection.driver_class">NHibernate.Driver.OdbcDriver</property>
<!--<property name="connection.connection_string">driver={IBM DB2 ODBC DRIVER};Database=a303.dbf;protocol=TCPIP</property>-->
<property name="connection.connection_string">Provider=VFPOLEDB.1; Data Source=C:\projects\rm4\Sandbox\bin\Debug\A303.dbf;Extended Properties=dBase III</property>
<property name="dialect">NHibernate.Dialect.DB2Dialect</property>
<property name="use_outer_join">true</property>
<property name="proxyfactory.factory_class">NHibernate.ByteCode.Castle.ProxyFactoryFactory, NHibernate.ByteCode.Castle</property>
<property name="show_sql">true</property>
I've left the commented out bits in so you can see what values I've been trying. No matter what I try, I get the error message:
ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
I've gone through most of the connection string I've found online and in some answers to questions on here was getting to the 'clutching at straws' phase where I'm just putting anything in so thought I'd better ask for help.
I'm not even sure if it's possible to connect to this type of file from NHibernate but, if it is, does anyone know what should be in the config?
A Shapefile (.shp) is not a dbf, per se. It actually is a collection of files, one of which is a DBF, but the shapefile itself that stores the geometry is a different format altogether.
There is a whitepaper on the ESRI website (www.esri.com)
I would try a different NHibernate driver. Here is a list of NHibernate drivers from the documentation.
Judging from the provider name in your connection string, I would try NHibernate.Driver.OleDbDriver.
Failing this, I would eliminate NHibernate from the mix and see if you can connect using the standard .NET data classes, such as System.Data.Odbc.OdbcConnection and System.Data.OleDb.OleDbConnection. If you cannot connect at this level, then the problem is not NHibernate.