Exception of pinter null in createCallableStatement
Hi allCan you give me idea how can we solve exception of Null pointer to createCallableStatement like the code below.
Exaplanation:
I try to call the procedure of database backup class java bean by a listener to press single button action.
He worked this other statement and works very well in doDML (operation int, e TransactionEvent). But whan I want to play createCallableStatement manually, it shows "Null pinter exception! Please help me.
try{
st=getDBTransaction().createCallableStatement(stmt,0);
}
catch(Exception e){
System.out.println(e.toString());
}Here are all the source
Backing Bean / java class
public class assmst extends EntityImpl {
public assmst() {
}
private BindingContainer bindings;
public static int VARCHAR2 = Types.VARCHAR;
public BindingContainer getBindings() {
if (this.bindings == null) {
FacesContext fc = FacesContext.getCurrentInstance();
this.bindings =
(BindingContainer)fc.getApplication().evaluateExpressionGet(fc,
"#{bindings}",
BindingContainer.class);
}
return this.bindings;
}
public void metDepShedProcess(javax.faces.event.ActionEvent actionEvent) {
// Add event code here...
AttributeBinding DepAssetLifeBinding =
(AttributeBinding)getBindings().getControlBinding("AssetLife");
Number vAssetLife = (Number)DepAssetLifeBinding.getInputValue();
AttributeBinding NetCostBinding =
(AttributeBinding)getBindings().getControlBinding("NetCost");
Number vNetCost = (Number)NetCostBinding.getInputValue();
AttributeBinding SalvageAmtBinding =
(AttributeBinding)getBindings().getControlBinding("SalvageAmt");
Number vSalvageAmt = (Number)SalvageAmtBinding.getInputValue();
AttributeBinding DepStartDateBinding =
(AttributeBinding)getBindings().getControlBinding("DepStartDate");
Date vDepStartDate = (Date)DepStartDateBinding.getInputValue();
AttributeBinding LastDepValBinding =
(AttributeBinding)getBindings().getControlBinding("LastDepVal");
Number vLastDepVal = (Number)LastDepValBinding.getInputValue();
AttributeBinding AssetNoBinding =
(AttributeBinding)getBindings().getControlBinding("AssetNo");
String vAssetNo = (String)AssetNoBinding.getInputValue();
AttributeBinding DepPercentageBinding =
(AttributeBinding)getBindings().getControlBinding("DepPercentage");
Number vDepPercentage = (Number)DepPercentageBinding.getInputValue();
String stmt = "begin p_depschedule (?,?,?,?,?,?,?,?,?,?); end;";
CallableStatement st=null;
try{
System.out.println(getDBTransaction().isConnected());
st=getDBTransaction().createCallableStatement(stmt,0);
}
catch(Exception e){
System.out.println(e.toString());
}
try{
//register the out parameter
// st.registerOutParameter(5,VARCHAR2);
//set the IN parameter value
st.setObject(1,vAssetLife);
st.setObject(2,vNetCost);
st.setObject(3,vSalvageAmt);
st.setObject(4,vDepPercentage);
st.setObject(5,"S"); //vDepMethod
st.setObject(6,vDepStartDate);
st.setObject(7,vAssetNo);
st.setObject(8,"Q"); //vDepPeriod
st.setObject(9,"");
st.setObject(10,"1");
}catch(Exception e){
System.out.println(e.toString());return;
}
//set company no which should be rmoved by assigned global/public variable
try{
//Execute that statement
st.executeUpdate();
// System.out.println("Sucess.");
ClsConfirmBean objmsgbox=new ClsConfirmBean();
objmsgbox.addFacesInformationMessage("Process completed Successfully!!");
}catch(Exception e){
System.out.println("--------------------------.");
}
}<af:commandButton text="Process!"
partialSubmit="true"
actionListener="#{Beanassmst.metDepShedProcess}"/>Zed
====
Published by: Zakir Hossain on April 24, 2009 20:22
Zed,
Write a custom method in your Application Module Java application class. Good reading of the Guide to the developer of the Fusion to see how to do this - method, would you be able to call getDBTransaction().
You could then drag - move the method you just write data control palette to your page and drop it in the form of button. Then, when you click the button, your AM method would be called.
It is in any case the general essential.
A few rules to remember (based on the principle of the separation of concerns of MVC):
(1) database code belongs to the model layer, never in the view layer.
(2) never EntityImpl of access outside the model layer.
(3) do not in the view layer classes extend classes BC (as you did in your example).
(4) do not refer to the layer of the view of your model layer.
Best,
John
Tags: Java
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Steven
Play with my code I found what was wrong.I needed to add in the following line in my code block of exception:v_line := NULL; v_sr_no := v_sr_no + 1;
Final code:DECLARE v_blob_data BLOB; v_blob_len NUMBER; v_position NUMBER; v_raw_chunk RAW(10000); v_char CHAR(1); c_chunk_len number := 1; v_line VARCHAR2 (32767) := NULL; v_data_array wwv_flow_global.vc_arr2; v_rows number; v_sr_no number := 1; v_first_line_done boolean := false; v_error_cd number :=0; v_quote_pos1 NUMBER; v_quote_pos2 NUMBER; v_enclosed_str VARCHAR(200); v_errmsg VARCHAR2(4000); BEGIN delete from TEMP_MM_UPDATE where username = :P1_USER_ID; -- Read data from wwv_flow_files select blob_content into v_blob_data from wwv_flow_files where name = :P2_FILE_UPLOAD; v_blob_len := dbms_lob.getlength(v_blob_data); v_position := 1; -- Read and convert binary to char WHILE ( v_position <= v_blob_len ) LOOP begin v_raw_chunk := dbms_lob.substr(v_blob_data,c_chunk_len,v_position); v_char := chr(hex_to_decimal(rawtohex(v_raw_chunk))); v_line := v_line || v_char; v_position := v_position + c_chunk_len; -- When a whole line is retrieved IF v_char = CHR(10) THEN LOOP --Make sure there's something to replace IF INSTR(v_line, '"', 1, 1) = 0 THEN EXIT; -- If nothing to replace, exit loop and don't try END IF; --Find the position of the first and second quotes in the line of text v_quote_pos1 := INSTR(v_line, '"', 1, 1); v_quote_pos2 := INSTR(v_line, '"', 1, 2); --Extract the inner string v_enclosed_str := SUBSTR(v_line, v_quote_pos1 + 1, v_quote_pos2 - v_quote_pos1 - 1); --perform the replacement v_line := SUBSTR(v_line, 0, v_quote_pos1 - 1) || REPLACE(v_enclosed_str, ',', '<') || SUBSTR(v_line, v_quote_pos2 + 1); END LOOP; -- Convert comma to : to use wwv_flow_utilities v_line := REPLACE (v_line, ',', ':'); v_line := REPLACE (v_line, '<', ','); v_line := REPLACE (trim(v_line), '-', NULL); --v_line := REPLACE (trim(v_line), '"', NULL); -- Convert each column separated by : into array of data v_data_array := wwv_flow_utilities.string_to_table (v_line); --Check to see if the row of column headers has already been parsed through IF(v_first_line_done != true)THEN v_first_line_done := true; --Check column order in spreadsheet IF(v_data_array(1) LIKE '%Username%' AND v_data_array(2) LIKE '%NDN%' AND v_data_array(3) LIKE '%PCFN%') THEN v_error_cd := 0; v_line := NULL; ELSE v_error_cd := 1; END IF; --If first line is done and the column order is correct then ELSIF(v_first_line_done = true AND v_error_cd = 0) THEN -- Insert data into target table EXECUTE IMMEDIATE 'insert into TEMP_MM_UPDATE (USERNAME, RPT_FLAG, PCFN) values (:1,:2,:3)' USING v_data_array(1), v_data_array(2), v_data_array(3); -- Clear out v_line := NULL; v_sr_no := v_sr_no + 1; END IF; END IF; exception WHEN OTHERS then v_errmsg := SQLERRM; insert into temp_mm_update (username,error_desc) values (:P1_USER_ID, v_errmsg); v_line := NULL; v_sr_no := v_sr_no + 1; END; END LOOP; DELETE FROM WWV_FLOW_FILES where name = :P2_FILE_UPLOAD; DELETE FROM TEMP_MM_UPDATE WHERE USERNAME IS NULL AND PCFN IS NULL; IF(v_error_cd = 1) THEN INSERT INTO temp_mm_update (USERNAME, ERROR_DESC) VALUES (:P1_USER_ID, 'Error. Please check column order in spreadsheet.'); END IF; EXCEPTION WHEN NO_DATA_FOUND THEN insert into temp_mm_update (username,error_desc) values (:P1_USER_ID, 'No Data Found.'); WHEN OTHERS then v_errmsg := SQLERRM; insert into temp_mm_update (username,error_desc) values (:P1_USER_ID, v_errmsg); END; -
Issue with the exception of the loop
Hello
I had 4 database, I use dblinks to check some tables and write the results in a table. I have created a table to contain the instance names so that my loop check and perform my procedure.
declare
sql_string1 VARCHAR2 (4000);
sql_string2 VARCHAR2 (100);
Start
sql_string2: = "truncate table Backup."
immediately run sql_string2;
for r in (select INSTANCE_NAME, del HOST_NAME)
loop
sql_string1: = ' insert into Backup
SELECT "' | r.HOST_NAME | " ' '||', '''|| r.INSTANCE_NAME | " ' '||' ,
INPUT_TYPE, STATUS, START_TIME, END_TIME V$RMAN_BACKUP_JOB_DETAILS@'|| r.INSTANCE_NAME;
immediately run sql_string1;
COMMIT;
end loop;
exception
WHILE OTHERS THEN
NULL;
end;
/
If all listeners work or dbs work this procedure to work with no problems but if one of them is closed, simply insert the values until it gets error but I want that if she gets error will be another value. How can I do?
I changed the values in the table led
SYS@crofxd01:WSTORED: > select instance_name del;
INSTANCE_NAM
------------
BLABLA
BLABLA
BLABLA
BLABLA
FPT
only the FPT is actual instance after I performed the procedure, I want to see that FPT values inserted DB.
Thank you
You must move the exceptions in the loop. Like this
declare
sql_string1 VARCHAR2 (4000);
sql_string2 VARCHAR2 (100);
Start
sql_string2: = "truncate table Backup."
immediately run sql_string2;
for r in (select INSTANCE_NAME, del HOST_NAME)
loop
sql_string1: = ' insert into Backup
SELECT "' | r.HOST_NAME | " ' '||', '''|| r.INSTANCE_NAME | " ' '||' ,
INPUT_TYPE, STATUS, START_TIME, END_TIME
OF V$RMAN_BACKUP_JOB_DETAILS@'|| r.INSTANCE_NAME;
Start
immediately run sql_string1;
exception
Whenthen
null;
end;COMMIT;
end loop;
end;But make sure that you specify that the exception in the EXCEPTION block. Do not THEN use than OTHERS. Because it will catch all exceptions (long-awaited by you and should not not by you). It will hurt one day.
-
THROWABLE-WAS-NULL error the connection after the upgrade to version 4.0.3
I get a Java exception when I connect to Hyperic. This started after I upgraded my server version Hyperic 3.2.4 to 4.0.3. Everything else seems to work after I get the Java error, I would like to know how to solve this problem but it happens every time I log in. Complete the below error and here is my server information.
OS: RHEL 5, 64 - bit
The Hyperic Version: HQ 4.0.3 build 953
===============================
Exception:
THROWABLE-WAS-NULL (to java.lang.Exception at org.hyperic.util.StringUtil.getStackTrace(StringUtil.java:409) at org.apache.jsp.common.GenericError_jsp._jspService (unknown Source) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:465) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398) at) org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301) at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:362) at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:283) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:136) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856) at org.apache.coyote.http11.Http11Protocol$ Http11ConnectionHandler.processConnection (Http11Protocol.java:744) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket) PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) at java.lang.Thread.run (Unknown Source))It is not a problem with the upgrade, there is a problem with the URL you probably have in your bookmark or browser history of 3.2. See:
http://JIRA.Hyperic.com/browse/HHQ-2858
In short, no access http://server/Login.do because SignIn.html redirection causes the stacktrace. Access / or SignIn.html to avoid the error.
-
Need to get the not null fields
Hello
I use jdev 11.1.1.5
I need to get all fields who r have certain values
In this case the Null value I get an exception like Java.null.ViewObjectImpl vo = this.getAccountClass1(); for (i=0;i<vo.getRowCount();i++){ Row vor = vo.next(); if (vor.getAttribute("GaclSchNo").equals("NULL")){ System.out.println ("null"); } System.out.println ("NotNull"); }
But I need to print Null.,.
How can I achieve thisTry using the code below.
> ViewObjectImpl vo = this.getAccountClass1 ();
> for (i = 0; i<>
> Rank vor = vo.next ();
> * If (vor.getAttribute ("GaclSchNo") == null) {*}
> System.out.println ("null");
> }
> System.out.println ("not null");
> } -
Something weird with NULL operation
First I tried to create a view to simplify the experimental query:
Note that I added a null value containing the line in the last row of the view.create or replace force view subquery as select email from employees where rownum<5 union select null from dual
Then, I tried these two:
She returned 4 lines except for the null row.select * from subquery where email in (select * from subquery)
But with this code:
The fifth line containing null is displayed. Should not be excluded also? Thank youselect email,(select * from subquery where email=s.email) from subquery s
Published by: 801264 on November 16, 2010 22:46the last query works fine. It ignores NULL values.
It is quite similar to an outer join (which is another possibility to demonstrate"associated NULL values" "):
SQL> with subquery as (select email from employees where rownum < 5 union select null from dual ) -- -- select s1.email from subquery s1, subquery s2 where s1.email = s2.email(+) / EMAIL ------------------------------------- ABANDA ABULL ACABRIO AERRAZUR 5 rows selected.Is there any exception for NULL operation?
It is not an exception: it must be understood only when and where NULL operations apply.
-
Definition of focus on TextInput in Mobile app raises StyleableTextField exception
I have a mobile small (4.5 flex) application in which I want to put a TextInput field to have focus when the view is finished being created. So in the creationComplete handler I just call setFocus on the TextInput field. However, it throws an exception of the null object in the setFocus method of StyleableTextField . It seems that the stage of field is null. Everyone fell on this? Or, there are some special conditions that must be fulfilled before it can occur without an error?
Try waiting for the addedToStage event.
-
exceptional ends the proc or only block?
Hi I have the following procedure shows what wil insert/delete rows in the table cache_time.
first time cache_table has all the lines...
If the exception statement inserts (null, sysdate) data in the table...
now my question is... after insertion (end the proc (or) execute the delete operation that is mentioned below?)
create or replace procedure refresh_table as
Start
SELECT END_TIMESTAMP IN the var_endtimestamp of cache_table;
EXCEPTION WHEN NO_DATA_FOUND THEN
INSERT INTO cache_table VALUES (null, SYSDATE);
end;
DELETE FROM cache_table;
INSERT INTO cache_table VALUES (var_endtimestamp, SYSDATE);
END refresh_table;
Published by: raj_fresher on June 12, 2009 08:58EXCEPTION WHEN NO_DATA_FOUND THEN
INSERT INTO cache_table VALUES (null, SYSDATE);-Online you need to call a stored procedure with the correct parameters, instead of insert here.
Define the procedure as a stand-alone transaction and manage the cache_table insert it.
And ENGAGE in your stored procedure.
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