Unexpected null values in a javabean used by a jsp
We have a problem running a web application developed in Jdeveloper 9.0.3.
This is the scenario:
In jspA a javabean MyBean is declared in this way:
<jsp:useBean id="MyBean" class=.... scope="session"/>.
In the same page we set MyBean's properties to some values.
Then the control passes to jspB where MyBean is declared like in jspA.
As expected, MyBean's properties have the values just set in jspA.
So the control passes to jspC: MyBean is declared like in jspA and jspB but
when we access MyBean's properties we see that they are NULL!
It seems as if MyBean were re-created when jspC starts execution.
We checked id, class and scope (session) but they are all the same in jspA, jspB, jspC.
Can anyone help you?
Thanks in advance for any suggestion.
I recommend using the debugger within Jdeveloper. You can set breakpoints in a JSP file and use the debugger just like you would use it in a java file. With the debugger you can control the flow of execution and watch values as you execute each statement. For more information on running the debugger against JSP's and servlets, see the online documentation.
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import HTTPClient.*;
I have the following directory structure:
jeff
-->pc
----->door
-------->main.jsp
-->WEB-INF
----->classes
-------->pc
----------->BankBean.java
----------->BankBean.class
----------->\HTTPClient
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I successfully compile the BankBean.java to create the BankBean.class. However, when I call the main.jsp I receive the following jsp compile error:
Package HTTPClient not found in import.
import HTTPClient.*;
^
1 error
THE JSP IS NOT COMPILING.
NOTE THE FOLLOWING:
*The HTTPClient folder resides in the same directory as the JavaBean.java and JavaBean.class files.
*The JavaBean.java file compiles successfully to create the JavaBean.class file.
I don't understand how the bean can compile successfully, but the JSP cannot compile. Please help!!!
Thanks!Adding the following:
import pc.HTTPClient.*;
failed.
It seemed logical, but didn't work.
After working on it for a few hours, I finally got it to work by moving the HTTPClient directory up from the pc directory into the classes directory with the other class directories. The successful directory structure is the following:
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Null value in List Binding (enumeration mode)
Hi,
how can I declare a NULL value in a List binding with enumeration mode?
A user should be able to select an empty entry in a combobox to update an attribute with a null value.
I'm using JDev9052 and JClient.
Any hints?
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While play with different List bindings I have discovered that a Button LOV Binding works when using a "select * UNION select null from dual" view object. It does not work with a Combobox LOV binding. Why?
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ListOperMode="0"
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When I create a proxy service for my esb webservice and try to invoke this service from my ADF Application I was always getting the exception 'unexpected null value for literal data'.
I've figured out what went wrong through debugging the proxy-classes of the esb-service.
You need to define an input-value for each attribute of which your object is constituted. After I've initialized each variable in the object, which is the input-parameter of my esb proxy, everything works fine.When I create a proxy service for my esb webservice and try to invoke this service from my ADF Application I was always getting the exception 'unexpected null value for literal data'.
I've figured out what went wrong through debugging the proxy-classes of the esb-service.
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How to set a cell to accept null values.
Hello;
I am having a problem with my insert query. My form, is passing the year (2010 and up) as a null value. I am using access (ugg) and I can't get it to accept this null value. I have tried setting required to no, and allow zero lenght, even deleted the table and remade it.. STILL I get this error:
Error Executing Database Query.
[Macromedia][SequeLink JDBC Driver][ODBC Socket][Microsoft][ODBC Microsoft Access Driver]Numeric value out of range (null)
The error occurred in C:\Websites\187914kg3\accManage\signUp.cfm: line 234
Called from C:\Websites\187914kg3\accManage\signUp.cfm: line 206
Called from C:\Websites\187914kg3\accManage\signUp.cfm: line 204
Called from C:\Websites\187914kg3\accManage\signUp.cfm: line 4
Called from C:\Websites\187914kg3\accManage\signUp.cfm: line 1
Called from C:\Websites\187914kg3\accManage\signUp.cfm: line 234
Called from C:\Websites\187914kg3\accManage\signUp.cfm: line 206
Called from C:\Websites\187914kg3\accManage\signUp.cfm: line 204
Called from C:\Websites\187914kg3\accManage\signUp.cfm: line 4
Called from C:\Websites\187914kg3\accManage\signUp.cfm: line 1
232 : <cfqueryparam cfsqltype="CF_SQL_INTEGER" value="#form.securitCode#">,
233 : <cfqueryparam cfsqltype="CF_SQL_INTEGER" value="#form.ExpirationMonth#">,
234 : <cfqueryparam value="#FORM.ExpirationYear#" cfsqltype="CF_SQL_VARCHAR">)
235 : </cfquery>
236 :
SQLSTATE
22003
SQL
INSERT INTO MerchandiseOrdersItems (c_ID, cc_type, cc_num, cc_verify, cc_expir_m, cc_expir_y) VALUES ( (param 1) , (param 2) , (param 3) , (param 4) , (param 5) , (param 6) )
VENDORERRORCODE
3
This is my form element and query that is causing the problem:
<cfparam name="FORM.ExpirationYear" default="">
<form>
<select name="ExpirationYear" class="formSelect">
<cfloop index="i" from="#VARIABLES.y1#" to="#VARIABLES.y2#">
<option value="#i#"<cfif FORM.ExpirationYear EQ i> selected</cfif>>#NumberFormat(i,"0000")#</option>
</cfloop>
</select>
</form>
<cfquery datasource="#APPLICATION.dataSource#" dbtype="ODBC">
INSERT INTO MerchandiseOrdersItems
(c_ID, cc_type, cc_num, cc_verify, cc_expir_m, cc_expir_y)
VALUES (<cfqueryparam value="#getUpdate.NewID#" cfsqltype="CF_SQL_VARCHAR">,
<cfqueryparam cfsqltype="cf_sql_varchar" value="#form.creditType#">,
<cfqueryparam cfsqltype="CF_SQL_LONGVARCHAR" value="#form.creditCard#">,
<cfqueryparam cfsqltype="CF_SQL_INTEGER" value="#form.securitCode#">,
<cfqueryparam cfsqltype="CF_SQL_INTEGER" value="#form.ExpirationMonth#">,
<cfqueryparam value="#FORM.ExpirationYear#" cfsqltype="CF_SQL_VARCHAR" null="yes">)
</cfquery>
The string that is erroring is this:
<cfqueryparam value="#FORM.ExpirationYear#" cfsqltype="CF_SQL_VARCHAR">
I still get this error. SO It has to be something inside the access database not allowing this null value. It is set as text right now, allowing zero length and not required.
Can anyone help me please?Hi
Usually the error occurs due to mismatch in datatype of db field and cfsqltype of cfqueryparam. Is "FORM.ExpirationYear " of type date?.
If so <cfqueryparam value="#FORM.ExpirationYear#" cfsqltype="CF_SQL_DATE" null="yes">)
"http://www.adobe.com/livedocs/coldfusion/6.1/htmldocs/tags-b20.htm" (have a look ).
Hope this will solve your issue -
1.5.1: Excel import - Problem with NULL values in date fileds
Hi,
I'm trying to import Excel Data via CSV with the import into table feature of SQLDeveloper.
Everything works fine, but if I select some of my date colums I get an error telling me that I have null or invalid values in a date column:
Verifying if the Date columns have date formats
FAILED
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I tried:
+20012121313,demo1,,+
+20012121313,demo1,NULL,+
+20012121313,demo1,to_date(NULL),+
but none of them worked...
How may I import those columns, where some of the rows contain NULL values?
Same story using 1.5... ;-(
Thank you!
Best regards,
JohannLook at the query Andy proposed:
SELECT NULL LINK, start_date, NVL(sum_of_trans, 0) + 0.001 VALUE
FROM (SELECT TRUNC (startdate) start_date,
CASE
WHEN :p9_view_by = 1
THEN ROUND (DURATION / 60, 3)
ELSE 1
END sum_of_trans
FROM TRANSACTION
WHERE trans_id = x AND startdate BETWEEN y AND z
GROUP BY TRUNC (startdate)) xDoes this query deliver anything?
Denes Kubicek -
From two given tables, how do you fetch the values from two columns using values from one column(get values from col.A if col.A is not null and get values from col.B if col.A is null)?
Hi,
Use NVL or COALESCE:
NVL (col_a, col_b)
Returns col_a if col_a is not NULL; otherwise, it returns col_b.
Col_a and col_b must have similar (if not identical) datatypes; for example, if col_a is a DATE, then col_b can be another DATE or it can be a TIMESTAMP, but it can't be a VARCHAR2.
For more about NVL and COALESCE, see the SQL Language manual: http://docs.oracle.com/cd/E11882_01/server.112/e26088/functions119.htm#sthref1310
I hope this answers your question.
If not, post a little sample data (CREATE TABLE and INSERT statements, relevant columns only) for all tables involved, and also post the results you want from that data.
Explain, using specific examples, how you get those results from that data.
Always say which version of Oracle you're using (e.g., 11.2.0.2.0).
See the forum FAQ: https://forums.oracle.com/message/9362002 -
Hi All,
I use this part-of-code in pl/sql statement in a 'where' clause in order to filter records to those that took place between some hours range:
..... and to_char(STARTDATE,'HH24:MI:SS') between NVL(:P3_HOURS_FROM,'00:00:00') and NVL(:P3_HOURS_TO,'23:59:59')
P3_HOURS_FROM & P3_HOURS_TO are combo box items with LOV (0:00,0:30,1:00 ....etc that returns 00:00:00,00:30:00,1:00:00 respectively). I use a null value which is displayed as '--:--'.
when i choose some hour range the rsults are correct. the problem is when i choose null values. there is no results to the report, probably (i guess) because it somehow translate the (null) time value to the same value (and it's obvious that between same time values there isn't any result).
so i guess i use 'null' value in an inappropriate way.
Can u tell me what do i do wrong???Are you sure you are returning NULL and just displaying '--:--' in your LOV?
If the state of your LOV is becoming '--:--' then this does not equal null in PL/SQL land.
I presume you are also submitting after changing your LOVs?
You can check the state of your items by clicking the session state in the developers toolbar at the bottom. See what your items are being set and report back!
Ben -
Oracle 11.1.0.7.0 Issue with Streams when using NULL value in a key field
Hi,
we have an issue in our replicated environment using Streams.
We have a replicated table using the following index:
UK_S01_TEXT_FORMAT_TBL01 SOGID
UK_S01_TEXT_FORMAT_TBL01 INDEX_TEXT_FORMAT_ID
UK_S01_TEXT_FORMAT_TBL01 INDEX_LANGUAGE_LABEL
UK_S01_TEXT_FORMAT_TBL01 INDEX_TEXT_FORMAT_COUNTER
UK_S01_TEXT_FORMAT_TBL01 INDEX_PROVIDER_ID
UK_S01_TEXT_FORMAT_TBL01 INDEX_TARIFF_PLAN_COSP_ID
with field INDEX_PROVIDER_ID allowing NULL values. Actually we insert empty strings in there, but as far as I understand Oracle will convert it sliently in a NULL value, which is fine to our application.
When we apply a change on that table (either update or delete) we get errors at streams level and the transaction is not propagated.
Local Transaction ID: 6.28.11170
Source Commit SCN: 25397175
Source Commit Time: Dec-03-2012 12:21:30
Error in Message: 1
Error Message: ORA-26787: The row with key ("INDEX_LANGUAGE_LABEL", "INDEX_PROVIDER_ID", "INDEX_TARIFF_PLAN_COSP_ID", "INDEX_TEXT_FORMAT_COUNTER", "INDEX_TEXT_FORMAT_ID", "SOGID") = (ITALIAN, , , 0, MIKE, 124) does not exist in table
SMS.S01_TEXT_FORMAT_TBL
ORA-01403: no data found
message: 1
TableName: S01_TEXT_FORMAT_TBL
Operation Type: DELETE
_____ Old Data _____
SOID : 1010000008
SOGID : 124
INDEX_TEXT_FORMAT_ID : MIKE
INDEX_LANGUAGE_LABEL : ITALIAN
INDEX_TEXT_FORMAT_COUNTER : 0
TEXT_FORMAT : Hai raggiunto i 100MB di traffico incluso nello scatto
APPLICA_PERIOD_CRI_ID :
INDEX_TARIFF_PLAN_COSP_ID :
INDEX_PROVIDER_ID :
If I force the set of primary keys to be only the NOT NULL fields, I can successfully apply the error, but since we may have them storing both NULL and NOT NULL values, this is not a solution.
I'm wondering why the DB on one hand converts the empty string in a NULL while inserting, but it looks the Apply process onStandby is not able to do the same when looking for the record before applying the transaction.
Thanks in advance!
Cheers,
MikeIts showing all objects the user has permission to see- why does that need to be restricted?
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Null values returned when using request.getParameters(
I have a html form which allows the user to choose options and select a file to upload. When I use method=Post I get null values returned. When I use method=Get I get my parameter values fine.. but I get an error.
"Posted content type isn't multipart/form-data"
I would like to know why I am getting null values returned when using Post. I am using the following to get the values from the name=value passed to the servlet.
String strIndustry = request.getParameter("frmIndustry");
String strCompany = request.getParameter("frmCompany");
String strCollabType = request.getParameter("frmCollaboration");
I have another form where the user can search information in a database that works just fine w/ either Get or Post
Or perhaps I am using oreilly MultipartRequest incorrectly??? but I copied it directly from another discussion.. ???
any thoughts
Thankstaybon:
you could do it like this. in this case, you submit your form with the parameters (industry, company, collaboration), and upload your file at the same time. and in the target servlet, you can build your MultipartRequest object like this:
MultipartRequest multi = new MultipartRequest(request, temp_location, 50 * 1024);where variable temp_location stands for a temporatory diretory for file uploading.
and then you get your parameters, so you can build the directory with them. and after that, you can move your file to that directory using File.renameTo();
but as i've suggested in my previous posting, i just recommend you upload your file in a separate form. and then you can perform an oridianry doPost form submit with those parameters. or you may have problems with the file uploading. (this is just my personal experiences with Multipart).
there is one other thing i'd like to mention, file.renameTo() won't work if you need to move files to a network drive in windows. it won't work if you move files across file systems in unix.
Song xiaofei
Developer Technical Support
Sun Microsystems
http://www.sun.com/developers/support -
I am gettng Null value for file when i am using a UDF as this
String FName;
DynamicConfiguration Conf = (DynamicConfiguration) container.getTransformationParameters(). get(StreamTransformationConstants.DYNAMIC_CONFIGURATION);
DynamicConfigurationKey key = DynamicConfigurationKey.create("http:/"+"/sap.com/xi/XI/System/File", "FileName");
FName = Conf.get (key);
if (FName == null)
return "null";
else
return FName
and my error is
Attempt to process file failed with com.sap.aii.adapter.file.configuration.DynamicConfigurationException: The Adapter Message Property 'FileName' was configured as mandatory element, but there is no 'DynamicConfiguration' element in the XI Message headplease any on there to help me
thanking you
sridahrHi,
Did u selected the option filename from the Adapter message specific atribute of file adapter.
When u run the whole scneario that time this will work if u run the scneario using test message tab of message mapping it will give null value only.
THe AMSA will work when u test it end to end.
check it out.
Advance parameter in file adapter dynamic file name
Problem in dynamic file name in File reciever adapater
/people/michal.krawczyk2/blog/2005/11/10/xi-the-same-filename-from-a-sender-to-a-receiver-file-adapter--sp14
/people/william.li/blog/2006/04/18/dynamic-configuration-of-some-communication-channel-parameters-using-message-mapping
chirag -
What is the use of setting null values to Objects?
What is the use of setting null values to Objects?
regards,
namancIt's more of a safety trap within java to handle the "programmers are still humans" exception.
String myname;
// print what???? Forgot to initialize the name!
System.out.println(myname);Java will complain about myname not being initialized. It won't when you do this:
String myname = null;
// allright, your name is null
System.out.println(myname);In the second case you are showing to java that you know what you are doing. -
Using "Where" operator sometimes generates a Null Value
Hello,
I am struggling with the following problem:
Sometimes when I use the "Where" operator, I get a Null value that I can't get rid of. For example:
[Fiscal Quarter] Where [Fiscal Quarter] = "2009 Q3"
Returns: "2009 Q3" and [Null]
Note: The object [Fiscal Quarter] is a dimension.
Conversely, when I use this formula:
[Revenue] Where [Fiscal Quarter] = "2009 Q3"
There is just one result, e.g., $100,000, as expected.
Is there something I can add to the first formula so that I do not get the Null response?
thanks so much,
Helen GonzalezHello, Ekta!
in response to your help:
Q: Is the query that is the value of the Fiscal Dimension dependent upon some other condition?
A: No, the dimension "[Fiscal Quarter]" is not dependent on anything else.
Q: Have you tried breaking the formula to smaller chunks?
Have you tried using other Conditional Operator as "Nested IF".
A: No, I haven't tried that. Any suggestions? It sounds reasonable.
Thanks,
Helen -
how to transfer database table contain null values, primary key, and foreign key to the another database in same server. using INSERT method. thanks
INSERT targetdb.dbo.tbl (col1, col2, col3, ...)
SELECT col1, col2, col3, ...
FROM sourcedb.dbo.tbl
Or what is your question really about? Since you talke about foreign keys etc, I suspect that you want to transfer the entire table definition, but you cannot do that with an INSERT statement.
Erland Sommarskog, SQL Server MVP, [email protected] -
Using Convert to handle NULL values for empty Strings ""
After having had the problem with null values not being returned as nulls and reading some suggestion solution I added a converter to my application.
<converter>
<converter-id>NullStringConverter</converter-id>
<converter-for-class>java.lang.String</converter-for-class>
<converter-class>com.j2anywhere.addressbookserver.web.NullStringConverter</converter-class>
</converter>
...I then implemented it as follows:
public String getAsString(FacesContext context, UIComponent component, Object object)
System.out.println("Converting to String : "+object);
if (object == null)
System.out.println("READING null");
return "NULL";
else
if (((String)object).equals(""))
System.out.println("READING null (Second Check)");
return null;
else
return object.toString();
public Object getAsObject(FacesContext context, UIComponent component, String value)
System.out.println("Converting to Object: "+value+"-"+value.trim().length());
if (value.trim().length()==0 || value.equals("NULL"))
System.out.println("WRITING null");
return null;
else
return value.toUpperCase();
...I can see that it is converting my values, however the object to which the inputText fields are bound are still set to empty strings ""
<h:inputText size="50" value="#{addressBookController.contactDetails.information}" converter="NullStringConverter"/>Also when reading the object values any nulls are already converted to empty strings before ariving at the converter. It seems that there is a default converter handling string values.
How can I resolve this problem as set nulls when the input value is an empty string other then checking every string in my class individually. I would really hate to pollute my object model with empty string tests.
Thanks in advance
Edited by: j2anywhere.com on Oct 19, 2008 9:06 AMI changed my converter as suggested :
public Object getAsObject(FacesContext context, UIComponent component, String value)
if (value == null || value.trim().length() == 0)
if (component instanceof EditableValueHolder)
System.out.println("SUBMITTED VALUE SET TO NULL");
((EditableValueHolder) component).setSubmittedValue(null);
else
System.out.println("COMPONENT :"+component.getClass().getName());
System.out.println("Converting to Object: " + value + "< to " + null);
return null;
System.out.println("Converting to Object: " + value + "< to " + value);
return value;
}which produces the following output :
SUBMITTED VALUE SET TO NULL
Converting to Object: < to null
Info : The INFO line however comes from my controller object where I print out the set value :
package com.simple;
import java.util.ArrayList;
import java.util.List;
public class Controller
private String information;
/** Creates a new instance of Controller */
public Controller()
System.out.println("Createing Controller");
information = "Constructed";
public String process()
System.out.println("Info : "+getInformation());
return "processed";
public String reset()
setInformation("Re-Constructed");
System.out.println("Info : "+getInformation());
return "processed";
public String setNull()
setInformation(null);
System.out.println("Info : "+getInformation());
return "processed";
public String getInformation()
return information;
public void setInformation(String information)
this.information = information;
}I also changes my JSP / JSF page a little. Here is the updated version
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%>
<%@taglib prefix="h" uri="http://java.sun.com/jsf/html"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<%--
This file is an entry point for JavaServer Faces application.
--%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<f:view>
<h:form>
<h:inputText id="value" value="#{Controller.information}"/>
<hr/>
<h:commandLink action="#{Controller.process}">
<h:outputText id="clicker" value="Process"/>
</h:commandLink>
<hr/>
<h:commandLink action="#{Controller.reset}">
<h:outputText id="reset" value="Reset"/>
</h:commandLink>
<hr/>
<h:commandLink action="#{Controller.setNull}">
<h:outputText id="setNull" value="Set Null"/>
</h:commandLink>
</h:form>
</f:view>
</body>
</html>The converter is declared for the String class in the faces configuration file. From the log message is appears to be invoked, however the object is not set to null.
I tested this with JSF 1.2_04-b20-p03 as well as 1.2_09-b02-FCS.
any other suggestions what could be causing this.
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