TestPool method of data source is returning some strange value!!
Hi All
I am trying test a data source connection using the mbean api: testPool. It is giving me some weird output like:
<method $Proxy18.testPool of $Proxy18 instance 5>
My code:
connect('weblogic', 'weblogic1', 't3://localhost:7101')
serverRuntime()
dsMBeans = cmo.getJDBCServiceRuntime().getJDBCDataSourceRuntimeMBeans()
ds_name = "ApplicationDB"
for ds in dsMBeans:
if (ds_name == ds.getName()):
print 'DS name is: '+ds.getName()
print 'State is ' +ds.getState()
print ds.testPool
I get the following output:
DS name is: ApplicationDB
State is Running
<method $Proxy18.testPool of $Proxy18 instance 5>
What does '<method $Proxy18.testPool of $Proxy18 instance 5>' mean?
Hi,
If you want to Test the DataSource then ...please change the last line as :
print ds.testPool()
Example: Below
connect('weblogic', 'weblogic', 't3://localhost:7001')
serverRuntime()
dsMBeans = cmo.getJDBCServiceRuntime().getJDBCDataSourceRuntimeMBeans()
ds_name = "testDS"
for ds in dsMBeans:
if (ds_name == ds.getName()):
print 'DS name is: '+ds.getName()
print 'State is ' +ds.getState()
<font color=maroon>* print ds.testPool()*</font>
<BR>
Thanks
Jay SenSharma
http://jaysensharma.wordpress.com (WebLogic Wonders Are Here)
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Here's a simple example:
Data Source " Department" has records that have the properties: 'Name', 'Age' and 'Nationality'.
Data Source "Staff" has records that have the properties:'Staff_name', 'Position'.
The 'Name' and 'Staff_name' have the same values, and can be used to link the 2 records.
I'd like to get the records in the 'Department' data souce to also contain the property 'Position" from the "Staff" datasource .
Is there a manipulator that can do this?
Thanks!
JThanks Pravin,
But I don't want to join all data from the 2 datasources - I just want one property from one data source to appear in the records of the other data source. -
Some doubts in using resource-ref,connection pool n Data-source
Hi all ,
I need little bit clarification in the following points.
1) Does the connection pool which is created can be displayed in JNDI Tree???
I am seeing only DataSOurce in the JNDI Tree Only.
2)In case of Bean Managed Persistance, in ejb-jar.xml,
I had given the following info.
<resource-ref>
<res-ref-name>ramukkDataSource</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>Does the <res-ref-name> refers to Datasource Name??
In weblogic-ejb-jar.xml
<reference-descriptor>
<resource-description>
<res-ref-name>ramukkDataSource</res-ref-name>
<jndi-name>ramukkpool</jndi-name>
</resource-description>
</reference-descriptor>Here <jndi-name> refers to connection pool as per weblogic bible book.
If so when i deployed my ejb into the server iam getting Datasource cant be found.
If i had given like the following,
In ejb-jar.xml
<resource-ref>
<res-ref-name>jdbc/ramuJndi</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref> In weblogic-ejb-jar.xml
<reference-descriptor>
<resource-description>
<res-ref-name>jdbc/ramuJndi</res-ref-name>
<jndi-name>jdbc/ramuJndi</jndi-name>
</resource-description>
</reference-descriptor>Then only my ejb code is successfully deploying doing some work which is as per xpectation.
Can any body tell why I have to give the same name for <res-ref-name> n <jndi-name>??
I am working on this problem from last one week. Still not found the solution.
Connection Pool Creation
GENERAL::
Name : ramukkpool
url : jdbc:mysql://localhost:3306/test
Driver Classname: com.mysql.jdbc.Driver
Properties :
user = root
Password = XXX
create
TARGETS::
i had shifted myServer from left side to right side n clicked >>Apply
(Techncially can we say this as deploying the connection pool into server ???????????
If not how to deploy the connection pool into server??)
I did not get any errors in the console.
Now i am creating a datasource
CONFIGURATION:
Name : ramukkDataSource
JNDIName: jdbc/ramuJndi(Does we have to follow this convention only?? i.e JNDIName should start with jdbc/ only)
PoolName: ramukkpool
create
TARGETS::
I had shifed myServer from left to right n >>Apply.
Now also i did not get any errors in the console.Thanx(in advance),
ramuI have read the documentation.
I changed my class to oracle.jdbc.pool.OracleConnectionCacheImpl from
oracle.jdbc.pool.OracleConnectionPoolDataSource
I observed in the EM that the Open JDBC Connections and Total JDBC Connections are the same. When I used oracle.jdbc.pool.OracleConnectionPoolDataSource my Total JDBC Connections was increasing and Open JDBC Connections remains 0.
My question still remains unanswered, could some kindly help.
Q? I have defined a data source in JDeveloper using
oracle.jdbc.pool.OracleConnectionCacheImpl
In my java bean I am using the code pasted below to make a connection to database.
Can some one tell whether I am using the correct method of connection pooling mechanism or do I need to make some changes? This application uses JSP and used by lots of people which hits database very frequently.
Any help is highly appreciable.
Thanks in advance.
*******Code to make connection*********
private javax.naming.InitialContext context = null;
private javax.sql.DataSource jdbcURL = null;
private static final String url = "jdbc/ProdCoreDS";
public boolean openConnection()
try
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
context = new javax.naming.InitialContext();
jdbcURL = (javax.sql.DataSource)context.lookup(url);
con = jdbcURL.getConnection();
return true;
catch(Exception e)
System.out.println("Error in the Connection "+e);
e.printStackTrace();
return false;
}}
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