Kamal Bhatt wrote:
Hi,
I have a postgres database and I have successfully added a record.
I am trying to query the record. To do this, I have the following code:
public static Product findByTemplate(Product template)
{
PersistenceBroker broker = null;
Product result = null;
try
{
System.out.println("template: " + template.getId());
broker = PersistenceBrokerFactory.defaultPersistenceBroker();
QueryByCriteria query = new QueryByCriteria(template);
result = (Product) broker.getObjectByQuery(query);
}
finally
{
if (broker != null) broker.close();
}
if (result != null)
System.out.println("HELLO" + result.getName());
return result;
}
This is the tutorial code, modifies slightly.
Here is my main function:
public static void main(String[] args)
{
Product newProduct = new Product();
Product product = null;
newProduct.setName("Sprocket");
product = ProductDAO.findByTemplate(newProduct);
System.out.println(product.getName());
}
and here is my binding:
<class-descriptor
class="au.com.tt.holpub.beans.Product"
table="Product"
.
<field-descriptor
name="id"
column="id"
primarykey="true"
autoincrement="false"
/>
<field-descriptor
name="name"
column="name"
/>
<field-descriptor
name="price"
column="price"
/>
<field-descriptor
name="stock"
column="stock"
/>
</class-descriptor>
I have bumped up the root logging level to debug and here is the output:
[org.apache.ojb.broker.metadata.ConnectionRepository] DEBUG: New
descriptor was added: org.apache.ojb.broker.metadata.Jd
[EMAIL PROTECTED]
jcd-alias=default
default-connection=true
dbms=PostgreSQL
jdbc-level=3.0
driver=org.postgresql.Driver
protocol=jdbc
sub-protocol=postgresql
db-alias=//localhost/test
user=kamal
password=*****
eager-release=false
ConnectionPoolDescriptor={whenExhaustedAction=0, maxIdle=-1,
maxActive=30, maxWait=10000, removeAbandoned=false, numTe
stsPerEvictionRun=10, minEvictableIdleTimeMillis=600000,
testWhileIdle=false, testOnReturn=false, logAbandoned=false, mi
nIdle=0, fetchSize=0, removeAbandonedTimeout=300,
timeBetweenEvictionRunsMillis=-1, testOnBorrow=true}
batchMode=false
useAutoCommit=AUTO_COMMIT_SET_TRUE_AND_TEMPORARY_FALSE
ignoreAutoCommitExceptions=false
[EMAIL PROTECTED]
sequenceManagerClass=class
org.apache.ojb.broker.util.sequence.SequenceManagerHighLowImpl
Properties={autoNaming=true, seq.start=200000, grabSize=20}
.
]
[org.apache.ojb.broker.core.PersistenceBrokerFactoryBaseImpl] INFO: Create
new PB instance for PBKey org.apache.ojb.brok
er.PBKey: jcdAlias=default, user=kamal, password=*****, already created
persistence broker instances: 0
[org.apache.ojb.broker.cache.ObjectCacheFactory] INFO: Start creating new
ObjectCache instance
[org.apache.ojb.broker.cache.ObjectCacheFactory] INFO: Instantiate new
org.apache.ojb.broker.cache.CacheDistributor for
PB instance [EMAIL PROTECTED]
[org.apache.ojb.broker.cache.ObjectCacheFactory] INFO: New ObjectCache
instance was created
[org.apache.ojb.broker.util.sequence.SequenceManagerFactory] DEBUG:
Default sequence manager class was org.apache.ojb.br
oker.util.sequence.SequenceManagerHighLowImpl
[org.apache.ojb.broker.util.sequence.SequenceManagerFactory] DEBUG: create
new sequence manager for broker org.apache.oj
[EMAIL PROTECTED]
[org.apache.ojb.broker.util.sequence.SequenceManagerFactory] DEBUG:
Jdbc-Connection-Descriptor 'default' use sequence ma
nager: class org.apache.ojb.broker.util.sequence.SequenceManagerHighLowImpl
[org.apache.ojb.broker.accesslayer.sql.SqlQueryStatement$TableAlias]
DEBUG: TableAlias(): using hints ? false
[org.apache.ojb.broker.accesslayer.StatementManager] DEBUG: closeResources
was called
When I return from my selection function I get no results.
Any clues?
Cheers.
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Do you have any primitive type properties in Product object - int, long
...?
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