NUMBER - java.math.BigDecimal

Dear JDBC writer,
When I have done a query in my Java program on a table in an Oracle database with a NUMBER or NUMBER(4) or NUMBER(4,2) column,
and I use the generic method ResultSet.getObject(int column), the method always returns a java.math.BigDecimal instance.
1. In case of NUMBER(4) I had suspected a java.lang.Integer instance. In case of NUMBER I had suspected a java.lang.Double instance. Why did you return a java.math.BigDecimal instance?
2. Was it your intention to do further calculations with the BigDecimal instance or should I check the precision and scale of the column and get the int or double out of the BigDecimal instance?

Thanks for the tip about getNUMBER, that may help with some of my other problems, but I'm trying to get data out of oracle spatial geometry types, and both integers and floats are stored in arrays of numbers. If you do a getarray on these or even process them as a result set, you get bigdecimals. How could I do the equivalent of getNUMBER for an array type? This is a huge performance problem for Oracle spatial and java.

Similar Messages

Cast to a literal (ex. "java.math.BigDecimal")

I have an array with 2 columns like:
"java.math.BigDecimal", "2"
"java.lang.String", "Test 01"
"java.math.BigDecimal","120"
"java.math.BigDecimal","148"
"java.lang.String", "Test 02"
Is there way to cast the second string to the correct object type, using the first string.
Something like this:
("java.math.BigDecimal")("2")
("java.lang.String")("Test 01")
thanks in advance,
intovoid

You could do this by reflection for classes which
have a contructor which takes an single string
parameter - which I believe all these classes do.
Lot's of messy expections to field. The sequence
would be something like:
private static Object create(String[] columns) throws
Exception {
Class clazz = Class.forName(columns[0]); // get
the class
Contstructor cons = clazz.getConstructor(new
Class[]{String.class}); // get constructor from
String
return cons.newInstance(new Object[]{columns[1]});
// construct object
code]Except, the problem remains that the OP can still not cast the Object returned by newInstance() by using the String in columns[0] (even though the Object is a BigDecimal). Even if it could be cast "dynamically", what would it be cast into - you can not dynamically declare the variable type.
The above method could work if all the possible objects returned implemented a common interface. Or maybe instanceof could be used to hard-code the cast to the possible objects.
In the end, I think this type of code can lead to a brittle design.

Adding two java.math.BigDecimal values

Hi,
I want to add two java.math.BigDecimal values (like a + b).
This code returns only the a value
java.math.BigDecimal a = new java.math.BigDecimal(0);
java.math.BigDecimal a = new java.math.BigDecimal(23);
a.add(b);How can I add these values?
Thanks
Jonny

For your kind information, the code does not return any value. You are supposed to save the return value from the add() function call. Something like this:
java.math.BigDecimal c = a.add(b);
// print the value of c here

ADF Mobile : Could not find property inputvalue in class java.math.BigDecimal

I tried to add an input text item to the list view like below and received an error message while navigating out of the input text field.
"Could not find property inputvalue in class java.math.BigDecimal".
Can someone show me some pointers about what is wrong with the below code.
JDEV Version : 11.1.2.4
<amx:listView var="row" value="#{bindings.Empdtls.collectionModel}"
                        fetchSize="#{bindings.Empdtls.rangeSize}" styleClass="adfmf-listView-insetList"
                        id="lv1" editMode="true">
            <amx:listItem id="li1">
              <amx:tableLayout width="100%" id="tl1">
                <amx:rowLayout id="rl1">
                  <amx:cellFormat width="10px" id="cf3"/>
                  <amx:cellFormat width="60%" height="43px" id="cf2">
                    <amx:outputText value="#{row.ClassCode}" id="ot3"/>
                  </amx:cellFormat>
                  <amx:cellFormat width="10px" id="cf4"/>
                  <amx:cellFormat width="40%" halign="end" id="cf1">
                    <amx:inputText value="#{row.bindings.Salary.inputValue}" simple="true" id="it41"/>
                  </amx:cellFormat>
                </amx:rowLayout>
              </amx:tableLayout>
            </amx:listItem>
          </amx:listView>

Hi,
#{row.bindings.Salary.inputValue) doesn't access a binding in ADF Mobile. Use #{row.Salary} instead.
Frank

Excel Export - java.lang.NoSuchMethodError: java.math.BigDecimal

Hi All,
I am working on the Excel Export example.
When I am running the application I am getting the foll. error
java.lang.NoSuchMethodError: java.math.BigDecimal.<init>(I)V
    at com.sap.tut.wd.tutwd_table.tablecomp.TableComp.getProductsTOTAL_PER_ARTICLE(TableComp.java:227)
    at com.sap.tut.wd.tutwd_table.tablecomp.wdp.InternalTableComp.getProductsTOTAL_PER_ARTICLE(InternalTableComp.java:176)
    at com.sap.tut.wd.tutwd_table.tablecomp.wdp.IPublicTableComp$IProductsElement.wdGetObject(IPublicTableComp.java:437)
    at com.sap.tc.webdynpro.progmodel.context.MappedNodeElement.wdGetObject(MappedNodeElement.java:351)
    at com.sap.tc.webdynpro.progmodel.context.AttributePointer.getObject(AttributePointer.java:158)
Please provide some inputs as how to resolve this problem.
Regards
Nikhil Bansal

Hi Valery,
I am unable to install anything on my machine due to certain issues. So I shall not be able to implement the solution which you have suggested.
I have a diff. approach to solve this problem. My intention is to just export some data to excel.
So I have created a Component (ParentComp) in my application.The view in this comp contains a button Export to Excel 2003. There is an Action associated with this button.
I have another component ChildComp.
What I want to do is just call the Interface Controller of ChildComp from the Action ExportToExcel2003.
I am not passing any data to the ChildComp.Instead I shall be hardcoding some table data in ChildComp itself.
Please let me know if you are aware of some solution.
Regards
Nikhil Bansal

Java.math.BigDecimal;

Hello every one thanks for your time . i am trying to understand about decimal method. example below well explain itself but i m trying to use userInput in decimal & then add the result but cant work out. any one like to give me any good example or explain which ever easy way for you guys
Thanks in advance.
import java.math.BigDecimal;
public class AddTwoBigNumbers{
public static void main(String[] args) {
    BigDecimal num1, num2;
    num1 = new BigDecimal(50.020);      "      50.020 is fix value here. How i can change with user input method. "
    num2 = new BigDecimal(100.50);
    Sum(num1, num2);
public static void Sum(BigDecimal val1, BigDecimal val2){
    BigDecimal sum = val1.add(val2);
    System.out.println("Sum of two BigDecimal numbers: "+ sum);
}

Another nice hint might be: you actually can use this args array thingy up there. Start your program like
java AddTwoBigNumbers 50.02 100.50and access both values via args[0] and args[1] respectively.

Java.math.BigDecimal Problem!

Hi all,
I'm running a webdynpro application, inside it I'm executing a RFC that receives some parameters. Most of them are strings, but just one of them is BigDecimal type. When I run the app, I got the following error...
java.lang.NullPointerException
at java.math.BigDecimal.<init>(BigDecimal.java:181)
I appreciate any help you can give me.
Thanks in advance.
Jesus.

Hi Nibu,
Here you have the code that I'm using..
BigDecimal imp = new BigDecimal (
wdContext.currentContextElement().getImporte());
wdThis.wdGetVR_ControllerController.executeRFC(imp);
Then in the VR_Controller, I have created a method call executeRFC like this...
public void executeRFC (java.math.BigDecimal importe)
try {
wdContext.currentZbapi_createVR_InputElement().modelObject.setImp(importe);
wdContext.currentZbapi_createVR_InputElement().modelObject.execute(),
catch (Exception e) {
Thanks.
Jesus.

Java.math.BigDecimal and Oracle Number

Creating a Database schema in S1S4U1 from an Oracle database that included fields of Number(10,0), Studio4 used BigDecimals as the datatypes in the abstract schema.
However, when using S1AS7 and CMP EJBs, integer values do not show up as integers in the database . Am I missing some setting somewhere? TIA.

When I use integer values in this field, its stored as a base with an exponent in the database. I changed the fields to java.lang.Long, since I don't need a scale in this field, and even then, integer values are stored as exponential values.
In addition, I'm running into a new problem - the primary key field (also a number (10,0) in the database, but a java.lang.Integer in the EJB, gives the following errors when a Session EJB calls the findByPrimaryKey method on the CMP EJB using the TestApp generated by S1S4:
[11/Feb/2003:15:29:40] INFO ( 869): Bean sdComponents method findByPrimaryKey:
com.sun.jdo.api.persistence.support.JDOUserException: Value: -5,437,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 is less than minimum allowed: -9223372036854775808 for the field type java.lang.Long.
at com.sun.jdo.spi.persistence.support.sqlstore.model.FieldDesc.assertIsValidLong(FieldDesc.java:608)
at com.sun.jdo.spi.persistence.support.sqlstore.model.FieldDesc.convertValue(FieldDesc.java:416)
Not sure why this is showing up; the schema file in the module clearly says "Decimal"; the field in the EJB clearly says java.lang.Integer; the parameter for the find method says java.lang.Integer. Is the TestApp JSP created by S1S4 doing something to this parameter?

ADF: JBO-25009: Cannot create an object of type:java.math.Bi. Jdev 11.1.2.3

Hi,
I have created a tree structure on the left side of the page and a table on the right hand of the page. My requirement is that when I click on the node on the left side, the table on the right needs to be refreshed. For the time being the tree nodes on the left side is just one level. Eveytime I click on the node, I get the following error
<RichExceptionHandler> <_logUnhandledException> ADF_FACES-60098:Faces lifecycle receives unhandled exceptions in phase INVOKE_APPLICATION 5
javax.el.ELException: oracle.jbo.domain.DataCreationException: JBO-25009: Cannot create an object of type:java.math.BigDecimal from type:java.lang.String with value:Restricted
at com.sun.el.parser.AstValue.invoke(Unknown Source)
at com.sun.el.MethodExpressionImpl.invoke(Unknown Source)
at org.apache.myfaces.trinidad.component.UIXComponentBase.broadcastToMethodExpression(UIXComponentBase.java:1589)
at org.apache.myfaces.trinidad.component.UIXTree.broadcast(UIXTree.java:237)
at oracle.adf.view.rich.component.rich.data.RichTree.broadcast(RichTree.java:308)
at org.apache.myfaces.trinidad.component.UIXCollection.broadcast(UIXCollection.java:157)
at org.apache.myfaces.trinidad.component.UIXTree.broadcast(UIXTree.java:244)
at oracle.adf.view.rich.component.rich.data.RichTree.broadcast(RichTree.java:308)
at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:130)
at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:461)
at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:134)
at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:112)
at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:130)
at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:461)
at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:134)
at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:106)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.broadcastEvents(LifecycleImpl.java:1137)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:361)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:202)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:508)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:173)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:125)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:468)
at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:468)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:293)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:199)
at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:180)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)
at java.security.AccessController.doPrivileged(Native Method)
at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:442)
at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)
at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)
at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:139)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
Caused by: oracle.jbo.domain.DataCreationException: JBO-25009: Cannot create an object of type:java.math.BigDecimal from type:java.lang.String with value:Restricted
at oracle.jbo.common.JboTypeMapEntries$2.convert(JboTypeMapEntries.java:135)
at oracle.jbo.domain.TypeFactory.get(TypeFactory.java:869)
at oracle.jbo.domain.TypeFactory.getInstance(TypeFactory.java:116)
at oracle.jbo.server.AttributeDefImpl.convertToJava(AttributeDefImpl.java:2220)
at oracle.jbo.server.ViewRowSetImpl.prepKeyForFind(ViewRowSetImpl.java:5377)
at oracle.jbo.server.ViewRowSetImpl.findByKey(ViewRowSetImpl.java:5394)
at oracle.jbo.server.ViewRowSetImpl.findByKey(ViewRowSetImpl.java:5296)
at oracle.jbo.server.ViewRowSetImpl.findByKey(ViewRowSetImpl.java:5290)
at oracle.jbo.server.ViewObjectImpl.findByKey(ViewObjectImpl.java:11628)
at oracle.jbo.uicli.binding.JUCtrlHierNodeBinding.syncTargetIter(JUCtrlHierNodeBinding.java:641)
at oracle.jbo.uicli.binding.JUCtrlHierNodeBinding.internalSetCurrentRow(JUCtrlHierNodeBinding.java:617)
at oracle.jbo.uicli.binding.JUCtrlHierNodeBinding.syncCurrentRow(JUCtrlHierNodeBinding.java:547)
at oracle.jbo.uicli.binding.JUCtrlHierNodeBinding.setRowAsCurrentOnTargetIterator(JUCtrlHierNodeBinding.java:561)
at oracle.adfinternal.view.faces.model.binding.FacesCtrlHierNodeBinding.setRowAsCurrentOnTargetIterator(FacesCtrlHierNodeBinding.java:147)
at oracle.adfinternal.view.faces.model.binding.FacesCtrlHierBinding$FacesModel.makeCurrent(FacesCtrlHierBinding.java:685)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
... 58 more
Caused by: java.lang.NumberFormatException
at java.math.BigDecimal.<init>(BigDecimal.java:459)
at java.math.BigDecimal.<init>(BigDecimal.java:728)
at oracle.jbo.common.JboTypeMapEntries$2.convert(JboTypeMapEntries.java:129)
... 76 more
Please can you let me know how I can resolve this issue.
Thanks

Hi, I have rechecked this issue. In the bug they say that Big Integer should be changed to Big Decimal to resolve the issue. I checked my application and saw that there is no Big Interger. Please can you guide me further.

Using java.math

Hey guys,
I've got yet another question !
I want to the math.floor to round my double numbers down.
I've declared "import java.math.*;" at the very start
but how do you use math.floot actually?
I've put
double number = 1.25
double roundednumber = math.floor(number);
but it cannot find symbol math...I did something wrrong...

Hey guys,
I've got yet another question !
I want to the math.floor to round my double numbers down.
I've declared "import java.math.*;" at the very start
but how do you use math.floot actually?
I've put
double number = 1.25
double roundednumber = math.floor(number);
but it cannot find symbol math...I did something
wrrong...As Jos already pointed out: it's with a capital M.
Note that the Math class is not in the java.math package but in the java.lang package which is automatically imported.
This is the java.math package:
http://java.sun.com/j2se/1.5.0/docs/api/java/math/package-summary.html
And this is the java.lang.Math class:
http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Math.html

Java.math package does not exist!!!

hi java experts, i really desperately need some help. ihave been trying to compile a java program i have written that imports the java.math package as i am using the BigInteger class. I am using SUN ONE STUDIO ME 4 and have j2se SDk installed. when i try to build the program in the IDE, it gives me an error message saying the java.math package does not exist. i can't understand why. i think it's an IDE problem. i tried mounting the filesystem and i mounted almost a million times in diff ways but it still can't compile. i can't find the directory of the java.math to mount into. anyway i tried to compile it at the command prompt and it can compile but with errors... so i figure that i do have the java.math class on my system just that the IDE jsut can't recognise it. i am at my wits end and gonna go mad if someone doesn't please help me.
adeline from singapore

Cross-posted at http://forum.java.sun.com/thread.jsp?thread=293132&forum=54&message=1155073

Package java.math does not exist!!!

hi java experts, i really desperately need some help. ihave been trying to compile a java program i have written that imports the java.math package as i am using the BigInteger class. I am using SUN ONE STUDIO ME 4 and have j2se SDk installed. when i try to build the program in the IDE, it gives me an error message saying the java.math package does not exist. i can't understand why. i think it's an IDE problem. i tried mounting the filesystem and i mounted almost a million times in diff ways but it still can't compile. i can't find the directory of the java.math to mount into. anyway i tried to compile it at the command prompt and it can compile but with errors... so i figure that i do have the java.math class on my system just that the IDE jsut can't recognise it. i am at my wits end and gonna go mad if someone doesn't please help me.
adeline from singapore

java.math package will be there in jdk_dir\jre\lib\rt.jar. You need to set the classpath variable in your IDE for this jar file. There must be some means to edit the IDE's classpath variable.
i mounted almost a million times in diff ways but it still can't compileIf it takes one minute for each mount then total time you have taken = 10000000 minutes = 166666 hours = 6944 days = 19 years (roughly). Java was not there 19 years ago.
Sudha

Java math library?

Hi all,
Does anyone know a java math-library which provides analysis stuff?
I'd like to generate a function (approximation) which describes a curve.
What I need is an implementation of Lagrange interpolation formula or
Newton interpolation formula.
Google lets me down. Any help would be greatly appreciated!

You could try looking through the list of stuff at http://math.nist.gov/javanumerics/

@value tag dosen't work for java.math.BigInteger constants

Is there anything I can do to get the Javadoc {@value} tag to document the value of BigInteger constants?
I presume the issue applies to any object constants, but, BigInteger is all I need.
Thanks for any advice.

I apologize, I should have supplied more context....
Here is my sample source
package ...;
import java.math.BigInteger;
public class TestJavaDoc
* TEST_STRING has value {@value}
public static final String TEST_STRING = "IFQ Permit ";
* TEST_BIG_INTEGER has value {@value}
* Should also work like this {@value #TEST_BIG_INTEGER}
* Constant ONE has a value {@value BigInteger#ONE}
public static final BigInteger TEST_BIG_INTEGER = BigInteger.valueOf(1000);
Here is the generated Javadoc, where you can see that @value works for a String, but fails for BigInteger....
TEST_STRING
public static final java.lang.String TEST_STRING
TEST_STRING has value "IFQ Permit "
TEST_BIG_INTEGER
public static final java.math.BigInteger TEST_BIG_INTEGER
TEST_BIG_INTEGER has value {@value}
Should also work like this {@value}
Constant ONE has a value {@value}
Here is more context:
javadoc -J-versionjava version "1.4.2_09"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_09-b05)
Java HotSpot(TM) Client VM (build 1.4.2_09-b05, mixed mode)
excerpt from build.xml:
<target name="larryDoc"
description="Generates JavaDoc Business Rule classes">
<tstamp>
<format property="generation.time" pattern="MM/dd/yyyy hh:mm:ss aa"/>
</tstamp>
<javadoc
destdir="./businessRules"
author = "true"
version = "true"
use = "true"
windowtitle = "Business Rules"
additionalparam="-breakiterator">
<fileset dir="../business/src" defaultexcludes="yes">
<include name="org/psmfc/er/business/TestJavaDoc.java"/>
</fileset>
<classpath>
<path>
<pathelement path="IER/business/classes"/>
</path>
</classpath>
<bottom>generated: ${generation.time}</bottom>
</javadoc>
</target>

Java Math Package for Vectors & Matrices

Is there a Java package that has vector and matrix operations (addition, multiplication, transpose, etc.)? I have searched the Developer Forums and see lots of postings from people implementing their own. And I also see references to javax.vecmath, but that appears to be for 3 elements only. But I couldn't find anything that implements the basic vector/matrix operations.
Thanks very much for any suggestions.

Use the search, there are several packages out there that will emulatie math function found in java.math.

NUMBER - java.math.BigDecimal

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