HOWTO set ArrayCollection1 = ArrayCollection2 without making the underlying array the same object?
Hello
I fill an ArrayCollection collection from the server and use it as a DataProvider to a DataGrid control.
I want to send only what has changed (the delta) on the server.
So, I save the original in another collection ArrayCollection with the idea to use it to compare with the original. Like this:
public var ArrayCollection1:ArrayCollection = new ArrayCollection(); public var ArrayCollection2:ArrayCollection = new ArrayCollection(); (ArrayCollection1 populated from the server) ArrayCollection2 = ArrayCollection1;
However, the second collection of underlying table ArrayCollection has the ObjectId as well as the first. Therefore, when data is changed in the DataGrid, it replaces the two ArrayCollections.
Is there a way to force the second collection of ArrayCollection underlying table to be an object separated instead of a reference to the ArrayCollection1 table?
Thank you!
You'll need a full copy:
Tags: Flex
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Select p.table_name, p.grantee, p.owner, p.grantor, p.privilege, o.object_type
of dba_tab_privs p
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on o.object_name = p.table_name
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Thank you882817 wrote:
What's the advantage I have this solution on the previous?Well, I just introduced two solutions. Depending on the particular case compare you execution plans and choose a better. Here we have quite complex views, but I would say the analytical solution is a little bit faster:
SQL> explain plan for 2 select p.table_name, 3 p.grantee, 4 p.owner, 5 p.grantor, 6 p.privilege, 7 o.object_type 8 from dba_tab_privs p 9 inner join 10 dba_objects o 11 on ( 12 o.object_type = 'DIRECTORY' 13 and 14 o.owner = p.owner 15 and 16 o.object_name = p.table_name 17 and 18 p.grantor != 'U2' 19 ) 20 where not exists ( 21 select 1 22 from dba_tab_privs p1 23 where p.owner = p1.owner 24 and p.table_name = p1.table_name 25 and p.grantee = p1.grantee 26 and p.privilege = p1.privilege 27 and p1.grantor = 'U2' 28* ) SQL> / Explained. SQL> @?\rdbms\admin\utlxpls PLAN_TABLE_OUTPUT ------------------------------------------------------------------------------------------------------------------------------------ Plan hash value: 1557554763 ---------------------------------------------------------------------------------------------------------------------- | Id | Operation | Name | Rows | Bytes |TempSpc| Cost (%CPU)| Time | ---------------------------------------------------------------------------------------------------------------------- | 0 | SELECT STATEMENT | | 494 | 131K| | 864 (5)| 00:00:11 | |* 1 | HASH JOIN | | 494 | 131K| | 864 (5)| 00:00:11 | |* 2 | TABLE ACCESS FULL | USER$ | 73 | 1095 | | 3 (0)| 00:00:01 | |* 3 | HASH JOIN ANTI | | 494 | 124K| | 861 (5)| 00:00:11 | |* 4 | HASH JOIN | | 522 | 96570 | | 681 (5)| 00:00:09 | | 5 | TABLE ACCESS FULL | USER$ | 74 | 1110 | | 3 (0)| 00:00:01 | PLAN_TABLE_OUTPUT ------------------------------------------------------------------------------------------------------------------------------------ |* 6 | HASH JOIN | | 522 | 88740 | | 678 (5)| 00:00:09 | | 7 | TABLE ACCESS FULL | USER$ | 74 | 1110 | | 3 (0)| 00:00:01 | |* 8 | HASH JOIN | | 38597 | 5842K| 1752K| 674 (5)| 00:00:09 | |* 9 | HASH JOIN | | 24484 | 1458K| | 172 (5)| 00:00:03 | |* 10 | HASH JOIN | | 24221 | 685K| | 23 (9)| 00:00:01 | | 11 | INDEX FULL SCAN | I_TABLE_PRIVILEGE_MAP | 24 | 240 | | 1 (0)| 00:00:01 | |* 12 | TABLE ACCESS FULL | OBJAUTH$ | 24221 | 449K| | 21 (5)| 00:00:01 | | 13 | TABLE ACCESS FULL | OBJ$ | 52647 | 1645K| | 147 (3)| 00:00:02 | | 14 | VIEW | DBA_OBJECTS | 49670 | 4559K| | 164 (10)| 00:00:02 | | 15 | UNION-ALL | | | | | | | |* 16 | FILTER | | | | | | | PLAN_TABLE_OUTPUT ------------------------------------------------------------------------------------------------------------------------------------ |* 17 | HASH JOIN | | 52627 | 2826K| | 162 (10)| 00:00:02 | | 18 | TABLE ACCESS FULL | USER$ | 74 | 1110 | | 3 (0)| 00:00:01 | |* 19 | TABLE ACCESS FULL | OBJ$ | 52627 | 2055K| | 158 (9)| 00:00:02 | |* 20 | TABLE ACCESS BY INDEX ROWID | IND$ | 1 | 8 | | 2 (0)| 00:00:01 | |* 21 | INDEX UNIQUE SCAN | I_IND1 | 1 | | | 1 (0)| 00:00:01 | |* 22 | TABLE ACCESS BY INDEX ROWID| SUM$ | 1 | 8 | | 1 (0)| 00:00:01 | |* 23 | INDEX UNIQUE SCAN | I_SUM$_1 | 1 | | | 0 (0)| 00:00:01 | |* 24 | FILTER | | | | | | | |* 25 | HASH JOIN | | 9 | 513 | | 5 (20)| 00:00:01 | | 26 | INDEX FULL SCAN | I_LINK1 | 9 | 378 | | 1 (0)| 00:00:01 | | 27 | TABLE ACCESS FULL | USER$ | 74 | 1110 | | 3 (0)| 00:00:01 | PLAN_TABLE_OUTPUT ------------------------------------------------------------------------------------------------------------------------------------ | 28 | VIEW | VW_SQ_1 | 1530 | 109K| | 179 (4)| 00:00:03 | |* 29 | HASH JOIN | | 1530 | 158K| | 179 (4)| 00:00:03 | | 30 | TABLE ACCESS FULL | USER$ | 74 | 1110 | | 3 (0)| 00:00:01 | |* 31 | HASH JOIN | | 1530 | 135K| | 176 (4)| 00:00:03 | |* 32 | HASH JOIN | | 1514 | 89326 | | 27 (8)| 00:00:01 | | 33 | TABLE ACCESS FULL | USER$ | 74 | 1110 | | 3 (0)| 00:00:01 | |* 34 | HASH JOIN | | 1514 | 66616 | | 24 (9)| 00:00:01 | | 35 | INDEX FULL SCAN | I_TABLE_PRIVILEGE_MAP | 24 | 240 | | 1 (0)| 00:00:01 | | 36 | NESTED LOOPS | | 1514 | 51476 | | 22 (5)| 00:00:01 | | 37 | TABLE ACCESS BY INDEX ROWID | USER$ | 1 | 15 | | 1 (0)| 00:00:01 | |* 38 | INDEX UNIQUE SCAN | I_USER1 | 1 | | | 0 (0)| 00:00:01 | PLAN_TABLE_OUTPUT ------------------------------------------------------------------------------------------------------------------------------------ |* 39 | TABLE ACCESS FULL | OBJAUTH$ | 1514 | 28766 | | 21 (5)| 00:00:01 | | 40 | TABLE ACCESS FULL | OBJ$ | 52647 | 1645K| | 147 (3)| 00:00:02 | ---------------------------------------------------------------------------------------------------------------------- Predicate Information (identified by operation id): --------------------------------------------------- 1 - access("OA"."GRANTOR#"="UR"."USER#") 2 - filter("UR"."NAME"<>'U2') 3 - access("U"."NAME"="NAME" AND "O"."NAME"="NAME" AND "UE"."NAME"="NAME" AND "TPM"."NAME"="NAME") 4 - access("OA"."GRANTEE#"="UE"."USER#") PLAN_TABLE_OUTPUT ------------------------------------------------------------------------------------------------------------------------------------ 6 - access("O"."OWNER"="U"."NAME" AND "U"."USER#"="O"."OWNER#") 8 - access("O"."OBJECT_NAME"="O"."NAME") 9 - access("OA"."OBJ#"="O"."OBJ#") 10 - access("OA"."PRIVILEGE#"="TPM"."PRIVILEGE") 12 - filter("OA"."COL#" IS NULL) 16 - filter(("O"."TYPE#"<>1 AND "O"."TYPE#"<>10 OR "O"."TYPE#"=1 AND (SELECT 1 FROM "SYS"."IND$" "I" WHERE "I"."OBJ#"=:B1 AND ("I"."TYPE#"=1 OR "I"."TYPE#"=2 OR "I"."TYPE#"=3 OR "I"."TYPE#"=4 OR "I"."TYPE#"=6 OR "I"."TYPE#"=7 OR "I"."TYPE#"=9))=1) AND DECODE("O"."TYPE#",0,'NEXT OBJECT',1,'INDEX',2,'TABLE',3,'CLUSTER',4,'VIEW',5,'SYNONYM',6,'SEQUENCE',7,'PROCEDURE',8,'FUNCTION',9,'PACKAG E',11,'PACKAGE BODY',12,'TRIGGER',13,'TYPE',14,'TYPE BODY',19,'TABLE PARTITION',20,'INDEX PARTITION',21,'LOB',22,'LIBRARY',23,'DIRECTORY',24,'QUEUE',28,'JAVA SOURCE',29,'JAVA CLASS',30,'JAVA PLAN_TABLE_OUTPUT ------------------------------------------------------------------------------------------------------------------------------------ RESOURCE',32,'INDEXTYPE',33,'OPERATOR',34,'TABLE SUBPARTITION',35,'INDEX SUBPARTITION',40,'LOB PARTITION',41,'LOB SUBPARTITION',42,NVL( (SELECT DISTINCT 'REWRITE EQUIVALENCE' FROM SYS."SUM$" "S" WHERE "S"."OBJ#"=:B2 AND BITAND("S"."XPFLAGS",8388608)=8388608),'MATERIALIZED VIEW'),43,'DIMENSION',44,'CONTEXT',46,'RULE SET',47,'RESOURCE PLAN',48,'CONSUMER GROUP',51,'SUBSCRIPTION',52,'LOCATION',55,'XML SCHEMA',56,'JAVA DATA',57,'SECURITY PROFILE',59,'RULE',60,'CAPTURE',61,'APPLY',62,'EVALUATION CONTEXT',66,'JOB',67,'PROGRAM',68,'JOB CLASS',69,'WINDOW',72,'WINDOW GROUP',74,'SCHEDULE',79,'CHAIN',81,'FILE GROUP','UNDEFINED')='DIRECTORY') 17 - 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SQL> SQL> SQL> @?\rdbms\admin\utlxpls PLAN_TABLE_OUTPUT ------------------------------------------------------------------------------------------------------------------------------------ Plan hash value: 1974693759 ------------------------------------------------------------------------------------------------------------------------ | Id | Operation | Name | Rows | Bytes |TempSpc| Cost (%CPU)| Time | ------------------------------------------------------------------------------------------------------------------------ | 0 | SELECT STATEMENT | | 522 | 59508 | | 674 (5)| 00:00:09 | |* 1 | VIEW | | 522 | 59508 | | 674 (5)| 00:00:09 | | 2 | WINDOW SORT | | 522 | 101K| | 674 (5)| 00:00:09 | |* 3 | HASH JOIN | | 522 | 101K| | 673 (5)| 00:00:09 | | 4 | TABLE ACCESS FULL | USER$ | 74 | 1110 | | 3 (0)| 00:00:01 | |* 5 | HASH JOIN | | 522 | 96570 | | 670 (5)| 00:00:09 | PLAN_TABLE_OUTPUT ------------------------------------------------------------------------------------------------------------------------------------ | 6 | TABLE ACCESS FULL | USER$ | 74 | 1110 | | 3 (0)| 00:00:01 | |* 7 | HASH JOIN | | 522 | 88740 | | 666 (5)| 00:00:08 | | 8 | INDEX FULL SCAN | I_TABLE_PRIVILEGE_MAP | 24 | 240 | | 1 (0)| 00:00:01 | |* 9 | HASH JOIN | | 522 | 83520 | | 665 (5)| 00:00:08 | | 10 | TABLE ACCESS FULL | USER$ | 74 | 1110 | | 3 (0)| 00:00:01 | |* 11 | HASH JOIN | | 38597 | 5465K| 1512K| 661 (4)| 00:00:08 | |* 12 | HASH JOIN | | 24484 | 1219K| | 170 (4)| 00:00:03 | |* 13 | TABLE ACCESS FULL | OBJAUTH$ | 24221 | 449K| | 21 (5)| 00:00:01 | | 14 | TABLE ACCESS FULL | OBJ$ | 52647 | 1645K| | 147 (3)| 00:00:02 | | 15 | VIEW | DBA_OBJECTS | 49670 | 4559K| | 164 (10)| 00:00:02 | | 16 | UNION-ALL | | | | | | | PLAN_TABLE_OUTPUT ------------------------------------------------------------------------------------------------------------------------------------ |* 17 | FILTER | | | | | | | |* 18 | HASH JOIN | | 52627 | 2826K| | 162 (10)| 00:00:02 | | 19 | TABLE ACCESS FULL | USER$ | 74 | 1110 | | 3 (0)| 00:00:01 | |* 20 | TABLE ACCESS FULL | OBJ$ | 52627 | 2055K| | 158 (9)| 00:00:02 | |* 21 | TABLE ACCESS BY INDEX ROWID | IND$ | 1 | 8 | | 2 (0)| 00:00:01 | |* 22 | INDEX UNIQUE SCAN | I_IND1 | 1 | | | 1 (0)| 00:00:01 | |* 23 | TABLE ACCESS BY INDEX ROWID| SUM$ | 1 | 8 | | 1 (0)| 00:00:01 | |* 24 | INDEX UNIQUE SCAN | I_SUM$_1 | 1 | | | 0 (0)| 00:00:01 | |* 25 | FILTER | | | | | | | |* 26 | HASH JOIN | | 9 | 513 | | 5 (20)| 00:00:01 | | 27 | INDEX FULL SCAN | I_LINK1 | 9 | 378 | | 1 (0)| 00:00:01 | PLAN_TABLE_OUTPUT ------------------------------------------------------------------------------------------------------------------------------------ | 28 | TABLE ACCESS FULL | USER$ | 74 | 1110 | | 3 (0)| 00:00:01 | ------------------------------------------------------------------------------------------------------------------------ Predicate Information (identified by operation id): --------------------------------------------------- 1 - 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Can you please help me with this one... I get the same experience for all employees even if I changed the dates:
Maybe to get the complete code you will be an overview
Published by: standman on March 14, 2011 12:37import java.util.Calendar; class Employee { private Calendar doj; private String empname; void setEmpName(String empname) { this.empname = empname; } String getEmpName() { return this.empname ; } void setDoj(Calendar doj) { this.doj = doj; } Calendar setDoj() { return this.doj ; } int ExperienceInYears(Calendar now) { int todayday=0,dobday=0; if (doj.after(now)) { throw new IllegalArgumentException("Date Error! Doj > today"); } int year1 = now.get(Calendar.YEAR); int year2 = doj.get(Calendar.YEAR); int yrs = year1 - year2; int todaymonth = now.get(Calendar.MONTH); int dobmonth = doj.get(Calendar.MONTH); if (dobmonth > todaymonth) { yrs--; } else if (todaymonth == dobmonth) { todayday = now.get(Calendar.DAY_OF_MONTH); dobday = doj.get(Calendar.DAY_OF_MONTH); if (dobday > todayday) { yrs--; } } return yrs; } } public class Main { public static void main(String[] args) { Calendar doj,today; int yrs; today = Calendar.getInstance(); doj = Calendar.getInstance(); today.set(2011, 3, 14); Employee e1 = new Employee(); Employee e2 = new Employee(); Employee e3 = new Employee(); e1.setEmpName("John Denver"); doj.set(1990, 1, 2); // First Time e1.setDoj(doj); e2.setEmpName("Olivia Newton"); doj.set(2002, 12, 12); // Second Time e2.setDoj(doj); e3.setEmpName("Neil Diamond"); doj.set(2005, 3,3); //Third time e3.setDoj(doj); yrs=e1.ExperienceInYears(today); System.out.println("The Employee " + e1.getEmpName()+ " has " + yrs + " years of exprience" ); yrs=e2.ExperienceInYears(today); System.out.println("The Employee " + e2.getEmpName()+ " has " + yrs + " years of exprience" ); yrs=e3.ExperienceInYears(today); System.out.println("The Employee " + e3.getEmpName()+ " has " + yrs + " years of exprience" ); } }standman wrote:
If I have three different dojs can I get the right answer! But why?What said Kayaman; However, now that you know this, you see that there is a much better way to set up your employees? (Hint: think of an employee (String, int, int, int) constructor).
Winston
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How can I run two sequences simultaneously on the same object to measure
I'm turning two sequences in parallel on even the UUT (own USE) so that I can put a piece of equipment to a certain State while starting a timer at the same time. How can I do this in the sequencer teststand?
You can run a sequence (or a subsequence if you just need a timer) in a new thread (just choose "use new thread" in the call of the sequence)
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Hello
Say if I have something that I have a circle and I want the black semicircle and the other half with white. How can I do this?
Thank you
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I have a chart of the letters from A to Z.
I add the child to the scene with a discreet button represents the letter of the alphabet.
I can add different letters to step up to 4 letters (I have a condition 'if', limiting the number of children on the stage). But if I try to add 4 of the SAME letter, added the first, the second is added and removed from the first, the third is added and removed from the second (and the first has already been removed) and so on. So I can never have the same letters as if I want to spell out MMMM as the expression of a feeling.
How can this be? I think I used a similar method before in a previous prototype where new children were loading on the scene from an image file on the disk. In this case, all the children are integrated MovieClips in the FLA file (the FLA is huge!... because I have about 10 types of lettering images for each letter of the alphabet). And I'm calling those with class constructors and pushing Classes in an array and then call this table a for loop iterating from 0 to less than 27 with i being a uint.
Any help is greatly appreciated.
-markerline
:
initialize
var wordDisplayA:Array = [];
var btnA:Array = [btn_A, btn_B],
for (var i: int = 0; i<>
btnA [i] .addEventListener (MouseEvent.CLICK, letterDisplayF);
}
use wordDisplayA to remove objects in the scene and null them.
can change but do not change significantly
function letterDisplayF(e:MouseEvent):void {}
var C: Class = Class (getDefinitionByName ("Alpha_01_" + e.currentTarget.name.split ("btn_") [1] .toUpp erCase()));
var instance: MovieClip = new C();
addChild (instance);
wordDisplayA.push (instance);
instance.x = instance. Width * wordDisplayA.Length;
}
Call when you want to remove the letters.
function removeWordF (): void {}
for (var i: int = wordDisplayA.length - 1; i > = 0; i--) {}
removeChild (wordDisplayA [i]);
}
wordDisplayA.length = 0;
}
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Is it possible to set up several questionnaires in the same presentation of Captivate?
I'm trying to set up a training project which has several sections corresponding to the different categories within the training. After each section, I would install a quiz which draws a few questions in the pools of question to make a check of the knowledge. After the verification of knowledge I would like to allow the user to review the questions in the previous section before moving on to the next section. Due to the nature of the random questions I use graded questions from question pools. In a training project with 4 sections, I need 4 slides examination of quiz. It seems that currently review quiz slide is generated automatically for all quiz questions in the presentation.
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