Cache returns an Object of type ImmutableArrayList .
Hi.
I've a class that extends HashSet and I put it in the cache. When I retrieve it, I get an object of type ImmutableArrayList.
Any idea why or what's going on?
cheers
I'm pretty sure we are not using pof. Here is my cache-config.
<cache-config>
<caching-scheme-mapping>
<cache-mapping>
<cache-name>*</cache-name>
<scheme-name>dist-default</scheme-name>
</cache-mapping>
</caching-scheme-mapping>
<caching-schemes>
<distributed-scheme>
<scheme-name>dist-default</scheme-name>
<backing-map-scheme>
<local-scheme>
<expiry-delay>86400</expiry-delay>
<flush-delay>3600</flush-delay>
</local-scheme>
</backing-map-scheme>
<autostart>true</autostart>
<request-timeout>120s</request-timeout>
</distributed-scheme>
</caching-schemes>
</cache-config>
I'll try and see whether it works by simply using Set instead of a HashSet?
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Hello,
I have a class like this:
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If I return this object from a web service call, i.e.
@WebService
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I get an error saying java class MyObject is not known, which makes sense, because I only declared "HelloWorld" to jwsc task.
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As you have this "Artiicle" class, extend it to be serializable and then define an Array of type Artiicle. So the return type would be an Array of a complex type i.e. Articles. In WSDL there will be type that defines an Array and this type can be used as a return message for your methode.
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12 /
When we run this on an 11.1.0.6 database we get:
DECLARE
ERROR at line 1:
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ORA-06512: at "SYS.DBMS_REPCAT_RGT", line 1330
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Thanks
RichardHere a full example with CAST MULTISET as @PhilHerring wrote and with CAST COLLECT using the simplest possible function make_geometry:
CREATE OR REPLACE TYPE t_sdo_geometries AS TABLE OF MDSYS.sdo_geometry;
CREATE OR REPLACE FUNCTION make_geometry (p_points t_sdo_geometries)
RETURN t_sdo_geometries IS
BEGIN
RETURN p_points;
END;
SELECT make_geometry (
t_sdo_geometries (
sdo_geometry(2001, 32774, sdo_point_type(1, 1, null), null, null),
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sdo_geometry(2001, 32774, sdo_point_type(3, 3, null), null, null),
sdo_geometry(2001, 32774, sdo_point_type(4, 4, null), null, null)))
AS geom
FROM DUAL;
WITH geoms(pcol) AS
(SELECT sdo_geometry(2001, 32774, sdo_point_type(1, 1, null), null, null) FROM dual UNION ALL
SELECT sdo_geometry(2001, 32774, sdo_point_type(2, 2, null), null, null) FROM dual UNION ALL
SELECT sdo_geometry(2001, 32774, sdo_point_type(3, 3, null), null, null) FROM dual UNION ALL
SELECT sdo_geometry(2001, 32774, sdo_point_type(4, 4, null), null, null) FROM dual)
SELECT make_geometry(cast(multiset(select pcol from geoms a) as t_sdo_geometries)) FROM dual;
WITH geoms(pcol) AS
(SELECT sdo_geometry(2001, 32774, sdo_point_type(1, 1, null), null, null) FROM dual UNION ALL
SELECT sdo_geometry(2001, 32774, sdo_point_type(2, 2, null), null, null) FROM dual UNION ALL
SELECT sdo_geometry(2001, 32774, sdo_point_type(3, 3, null), null, null) FROM dual UNION ALL
SELECT sdo_geometry(2001, 32774, sdo_point_type(4, 4, null), null, null) FROM dual)
SELECT make_geometry(cast(collect(pcol) as t_sdo_geometries)) FROM geoms;
Hope that helps
_jum -
Converting object wrapper type array into equivalent primary type array
Hi All!
My question is how to convert object wrapper type array into equivalent prime type array, e.g. Integer[] -> int[] or Float[] -> float[] etc.
Is sound like a trivial task however the problem is that I do not know the type I work with. To understand what I mean, please read the following code -
//Method signature
Object createArray( Class clazz, String value ) throws Exception;
//and usage should be as follows:
Object arr = createArray( Integer.class, "2%%3%%4" );
//"arr" will be passed as a parameter of a method again via reflection
public void compute( Object... args ) {
a = (int[])args[0];
//or
Object arr = createArray( Double.class, "2%%3%%4" );
public void compute( Object... args ) {
b = (double[])args[0];
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Object createArray( Class clazz, String value ) throws Exception {
String[] split = value.split( "%%" );
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Object[] o = (Object[])Array.newInstance( clazz, split.length );
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o[i] = meth.invoke( null, new Object[]{ split[i] });
//here convert Object[] to Object of type int[] or double[] etc...
/* and return that object*/
//NB!!! I want to avoid the following code:
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Unfortunately I was unable to find any useful method in Java API (I work with 1.5).
Did I make myself clear? :)
Thanks in advance,
Pavel GrigorenkoI think I've found the answer myself ;-)
Never thought I could use something like int.class or double.class,
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for (int j = 0; j < split.length; j++) {
Method meth = clazz.getMethod( "valueOf", new Class[]{ String.class });
Object val = meth.invoke( null, new Object[]{ split[j] });
Array.set( primeArray, j, val );
}where "token.getPrimeClass()" return appropriate Class, i.e. int.class, float.class etc. -
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Additional Information on the first post:
The pattern we've been testing is as follows:
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3. The Returned Biz object Getters are using Indirection (probably using the released non-synchronized UOW).
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We are trying to use the pattern for the following reasons:
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Try to create a method to return an object as xml
I'm trying to create a method for an object to return the objects attributes in xml format.
here is what I have done so far:
-- create the object hierachy
create or replace type ras4.atomic_tp as object
(atomic_instance_id varchar2(8),
service_instance_id varchar2(8),
parent_atomic_instance_id varchar2(8),
MEMBER FUNCTION return_xml RETURN varchar2)
NOT INSTANTIABLE
NOT FINAL;
create or replace type ras4.parm_const_tp under ras4.atomic_tp
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NOT INSTANTIABLE
NOT FINAL;
create or replace type ras4.contact_tp under ras4.atomic_tp
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address_line_2 varchar2(80),
address_line_3 varchar2(80),
city varchar2(20),
state varchar2(2),
country varchar2(20),
postal_code varchar2(20),
voice_telephone varchar2(20),
dns_telephone varchar2(20),
fax varchar2(20),
email varchar2(80),
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contact_inst varchar2(255))
NOT INSTANTIABLE
NOT FINAL;
create or replace type PERSON_tp under contact_tp
(prefix varchar2(7),
first_name varchar2(50),
middle_name varchar2(50),
last_name varchar2(50),
suffix varchar2(20),
nick_name varchar2(50),
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INSTANTIABLE
FINAL;
create table ras4.person_tb of ras4.person_tp;
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commit;
-- now different things I have tried to get the member function to work:
CREATE or replace TYPE BODY RAS4.PERSON_TP AS
overriding MEMBER FUNCTION RETURN_XML RETURN VARCHAR2 IS
qryCtx DBMS_XMLGEN.CTXHANDLE;
result CLOB;
BEGIN
qryCtx :=
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result := DBMS_XMLGEN.GETXML(qryCtx);
RETURN (RESULT);
END;
END;
I try to invoke the method as below:
DECLARE
v_person ras4.person_tp;
v_person_ref ref ras4.person_tp;
V_string varchar2(2000);
BEGIN
select value(a)
into v_person
from ras4.person_tb a
where a.atomic_instance_id = '00001';
v_string := v_person.return_xml;
DBMS_OUTPUT.PUT_LINE(v_string);
END;
I get the following error:
DECLARE
ERROR at line 1:
ORA-19206: Invalid value for query or REF CURSOR parameter
ORA-06512: at "SYS.DBMS_XMLGEN", line 83
ORA-06512: at "RAS4.PERSON_TP", line 7
ORA-06512: at line 12
-- I try to use
from the command line I type in this:
select sys_xmlgen(value(p))
from person_tb p
where p.atomic_Instance_id = '00001';
and it seems to work.
trying to put this into a member function - I try this:
CREATE or replace TYPE BODY RAS4.PERSON_TP AS
overriding MEMBER FUNCTION RETURN_XML RETURN VARCHAR2 IS
v_string varchar2(200);
v_person ras4.person_tp;
BEGIN
v_person := self;
select v_person.first_name into v_string from dual;
return (select sys_xmlgen(value(v_person)));
END;
END;
This fails to compile.
any help is greatly appreciated.
tomPN,
First, it's impossible to create static method with WD IDE designers for controllers.
Next, if you simply need to call method from wdDoModifyView, just create instance method createHTMLViewer in regular way then call it from wdDoModifyView via wdThis.createHTMLViewer().
Third, you may create this method manually directly in source code, just place it at the end of controller between comments //@begin other ... //@end.
Valery Silaev
EPAM Systems
http://www.NetWeaverTeam.com -
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You wouldn't be doing a direct runtime cast.
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#import "RandomSeeder.h"
#import "MyRandomGenerator.h"
@implementation RandomController
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[seeder seed];
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So both the RandomSeed class and the MyRandomGenerator class have a method named myInit. If I change the line with the warning to:
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and also change the name of the method to aInit in the MyRandomGenerator.h/.m files, then the warning goes away. xcode seems to be telling me that two classes can't have a method with the same name--which can't be correct.
//RandomSeeder.h
#import <Cocoa/Cocoa.h>
@interface RandomSeeder: NSObject {
- (RandomSeeder*)myInit;
- (void)seed;
@end
//RandomSeeder.m
#import "RandomSeeder.h"
@implementation RandomSeeder
- (RandomSeeder*)myInit
self = [super init];
NSLog(@"constructed RandomSeeder");
return self;
- (void)seed
srandom(time(NULL));
@end
//MyRandomGenerator.h
#import <Cocoa/Cocoa.h>
@interface MyRandomGenerator: NSObject {
- (MyRandomGenerator*)myInit;
- (int)generate;
@end
//MyRandomGenerator.m
#import "MyRandomGenerator.h"
@implementation MyRandomGenerator
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self = [super init];
NSLog(@"constructed RandomGenerator");
return self;
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@end
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#import <Cocoa/Cocoa.h>
#import "RandomSeeder.h"
#import "MyRandomGenerator.h"
@interface RandomController : NSObject {
IBOutlet NSTextField* textField;
RandomSeeder* seeder;
MyRandomGenerator* generator;
- (IBAction)seed:(id)sender;
- (IBAction)generate:(id)sender;
@end
//RandomController.m
#import "RandomController.h"
#import "RandomSeeder.h"
#import "MyRandomGenerator.h"
@implementation RandomController
- (IBAction)seed:(id)sender
seeder = [[RandomSeeder alloc] myInit];
[seeder seed];
NSLog(@"seeded random number generator");
[textField setStringValue:@"seeded"];
[seeder release];
- (IBAction)generate:(id)sender
generator = [[MyRandomGenerator alloc] myInit];
int randNum = [generator generate];
NSLog(@"generated random number: %d", randNum);
[textField setIntValue:randNum];
[generator release];
@end
Also, I couldn't figure out a way to create only one RandomSeed object and only one MyRandomGenerator object to be used for the life of the application--because I couldn't figure out how to code a destructor. How would you avoid creating a new RandomSeed object every time the seed action was called? Or, is that just the way things are done in obj-c?
Message was edited by: 7stud7stud wrote:
generator = [[MyRandomGenerator alloc] myInit]; //<**WARNING**
I can tell you why I might expect the subject warning, but doubt I'll be able to handle the likely follow-up questions, ok?
Firstly note that +(id)alloc, which is inherited from NSObject, always returns an id type, meaning an object of unspecified class. Thus the compiler can't determine the type returned by [MyRandomGenerator alloc], so doesn't know which of the myInit methods might run. This is the case whenever init is sent to the object returned by alloc, but your example is a little more complicated because the code has broken at least two rules for init methods: 1) By convention the identifier of an init method must begin with 'init'; 2) An init method must return an object of id type.
Each of the myInit methods returns a different "distinct" type, and neither of the methods is known to be an init, so the compiler isn't willing to guarantee that the object returned will match the type of the left hand variable. Do we think the compiler would be more trusting if the init methods followed the naming convention? Dunno, but that might be an interesting experiment. In any case, I wouldn't expect the compiler to complain if the myInit methods both returned an id type object.
For more details about why and how init methods are a special case you might want to look over Constraints and Conventions under "Implementing an Initializer" in +The Objective-C Programming Language+. The doc on init in the +NSObject Class Reference+ also includes a relevant discussion.
Hope some of the above is useful!
- Ray -
Multiple SDO_GEOMETRY Objects of type CIRCLE with the same LOCATION
Can i have a single MERCHANT LOCATION hold multiple SDO_GEOMETRY Objects of type CIRCLE ?
For example the use case , i need to have a SDO_GEOMETRY TYPE CIRCLE circle defined for a single MERCHANT LOCATION with a 2 Mile radius as well as a 5 Mile Radius.
is that even possible with Spatial? I know i can add a single geometry for a merchant at once, but i want to give the user the flexibility of choosing the type of geometry for the merchant based on set of rules. hence want to check if this can be done or not?
Thanks in AdvancePerson with no name,
Not clear exactly what you need to do here.
You can store two circles with the same centre in a single sdo_geometry but only if you use a polygon with the circle with the greatest radius being the outer ring and the smaller radius the inner ring.
I have a utility in my free COGO plsql package that allows me to create circles for PLANAR data pretty easily as follows:
-- Function...
Create
function CreateCircle(dCentreX in Number,
dCentreY in Number,
dRadius in Number)
return mDSYS.sdo_geometry
IS
dPnt1X NUMBER;
dPnt1Y NUMBER;
dPnt2X NUMBER;
dPnt2Y NUMBER;
dPnt3X NUMBER;
dPnt3Y NUMBER;
BEGIN
-- Compute three points on the circle's circumference
dPnt1X := dCentreX - dRadius;
dPnt1Y := dCentreY;
dPnt2X := dCentreX + dRadius;
dPnt2Y := dCentreY;
dPnt3X := dCentreX;
dPnt3Y := dCentreY + dRadius;
RETURN MDSYS.SDO_GEOMETRY(2003,NULL,NULL,MDSYS.SDO_ELEM_INFO_ARRAY(1,1003,4),MDSYS.SDO_ORDINATE_ARRAY(dPnt1X, dPnt1Y, dPnt2X, dPnt2Y, dPnt3X, dPnt3Y));
End;
select sdo_geometry(f.geom.sdo_gtype,
f.geom.sdo_srid,
sdo_point_type(f.centreX,f.centreY,null),
f.geom.sdo_elem_info,
f.geom.sdo_ordinates) as mcircle
from (select 10 as centreX,
10 as centreY,
sdo_geom.sdo_xor(cogo.CreateCircle(10,10,2),
cogo.CreateCircle(10,10,5),
0.005) as geom
from dual ) f;
-- Results
MCIRCLE
SDO_GEOMETRY(2003,NULL,SDO_POINT_TYPE(10.0,10.0,NULL),SDO_ELEM_INFO_ARRAY(1,1003,2, 11,2003,2),SDO_ORDINATE_ARRAY(10.0,15.0, 5.0,10.0, 10.0,5.0, 15.0,10.0, 10.0,15.0, 10.0,8.0, 8.0,10.0, 10.0,12.0, 12.0,10.0, 10.0,8.0))(This geometry looks like a donut.)
Note that I have included the centre coordinates in the sdo_point of the result sdo_geometry.
To extract each ring:
-- We need a function to return number of rings in a polygon as sdo_util.getNumElems() does not
Create
Function GetNumRings( p_geometry in mdsys.sdo_geometry,
p_ring_type in integer /* 0 = ALL; 1 = OUTER; 2 = INNER */ )
Return Number
Is
v_elements pls_integer := 0;
v_ring_count pls_integer := 0;
v_etype pls_integer;
v_ring_type pls_integer := case when ( p_ring_type is null OR
p_ring_type not in (0,1,2) )
Then 0
Else p_ring_type
End;
Begin
If ( p_geometry is not null ) Then
v_elements := ( ( p_geometry.sdo_elem_info.COUNT / 3 ) - 1 );
<<element_extraction>>
FOR v_i IN 0 .. v_elements LOOP
v_etype := p_geometry.sdo_elem_info(v_i * 3 + 2);
If ( ( v_etype in (1003,1005,2003,2005) and 0 = v_ring_type )
OR ( v_etype in (1003,1005) and 1 = v_ring_type )
OR ( v_etype in (2003,2005) and 2 = v_ring_type ) ) Then
v_ring_count := v_ring_count + 1;
End If;
END LOOP element_extraction;
End If;
Return v_ring_count;
End GetNumRings;
-- Query
with circles as (
SELECT SDO_GEOMETRY(2003,NULL,SDO_POINT_TYPE(10.0,10.0,NULL),SDO_ELEM_INFO_ARRAY(1,1003,2, 11,2003,2),SDO_ORDINATE_ARRAY(10.0,15.0, 5.0,10.0, 10.0,5.0, 15.0,10.0, 10.0,15.0, 10.0,8.0, 8.0,10.0, 10.0,12.0, 12.0,10.0, 10.0,8.0))
as geom
FROM dual
select sdo_util.extract(a.geom,1,e.ringNo) as circle
from circles a,
(select level as ringNo from circles a connect by level <= GETNUMRINGS(a.geom)) e;
-- Result
CIRCLE
SDO_GEOMETRY(2003,NULL,SDO_POINT_TYPE(10.0,10.0,NULL),SDO_ELEM_INFO_ARRAY(1,1003,2),SDO_ORDINATE_ARRAY(10.0,15.0, 5.0,10.0, 10.0,5.0, 15.0,10.0, 10.0,15.0))
SDO_GEOMETRY(2003,NULL,SDO_POINT_TYPE(10.0,10.0,NULL),SDO_ELEM_INFO_ARRAY(1,1003,2),SDO_ORDINATE_ARRAY(10.0,8.0, 12.0,10.0, 10.0,12.0, 8.0,10.0, 10.0,8.0))Not sure if this helps you at all....
regards
Simon -
In Safari, composing an E-mail message, when I click on "I" for italics, use italics for a word, then unclick "I" to return to the regular type face, it reverts to italics after I hit the "return" key to begin a new paragraph. How can I avoid that unwanted reverting to italics?
Hi ...
Open a Finder window. From the Finder menu bar click Go > Go to Folder
Type or copy paste the following:
~/Library/Caches/com.apple.Safari/Cache.db
Click Go then move the Cache.db file to the Trash.
Quit and relaunch Safari to test. -
How can i return an object isn't java object from webservice????
Hi !
I have a problem in my Project. When i call method return a java object from webservice , it 's too easy. But when i create my own object (ex:ClientRequest.class) , it doesn't work exactly T_T . When i return that object (on client, doesn't have ClientRequest.class) , i cann't access its static variables.
How can i do it ??
Please help me !
Thanks a lot !!!!!
class ClientRequest {
public static int i;
public static String s;
public ClientRequest() {
}You can use REFCURSOR type for this. In java SQL TYPES this is available too. In your PLSQL use REFCURSOR for that array and then take the same from java code. Look in the servelet programming book for this SQLTYPE and see PLSQL for handling refcursors. We have done this way and it works.
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