通过JCA实现企业级应用程序的“即插即用” - 编程入门网
con = null;
public InteractionImpl(Connection con) {
System.out.println("InteractionImpl::
Constructor called wth a connection of
class " + con.getClass().toString());
this.con = con;
}
public javax.resource.cci.Connection
getConnection() {
return con;
}
public void close() throws ResourceException {
con = null;
}
public boolean execute (InteractionSpec ispec,
Record input, Record output)
throws ResourceException {
if(!(input instanceof MappedRecord) ||
!(output instanceof MappedRecord))
throw new ResourceException("Both input and
output records must be Mapped Records.");
output = exec((MappedRecord)input,(
MappedRecord)output);
if (output != null) {
return true;
} else {
return false;
}
}
public Record execute (InteractionSpec ispec,
Record input)
throws ResourceException {
if(!(input instanceof MappedRecord))
throw new ResourceException(
"Input record must be a Mapped Record.");
MappedRecord output = new MappedRecordImpl();
return exec((MappedRecord)input,output);
}
public ResourceWarning getWarnings()
throws ResourceException {
return null;
}
public void clearWarnings()
throws ResourceException {
}
Record exec(MappedRecord input, MappedRecord
output) throws ResourceException {
try
{
System.out.println(
"InteractionImpl::exec called");
Properties props =
((ConnectionImpl)con).getProperties();
Set keys = input.keySet();
Iterator it = keys.iterator();
while (it.hasNext()) {
String key = (String)it.next();
output.put(key,props.get(key));
}
return output;
}
catch(Exception e)
{
throw new ResourceException(e.getMessage());
}
}
}
通过JCA实现企业级应用程序的“即插即用”(5)时间:2010-09-13代码段三：
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