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  • Accessing one process's memory contents from another module

    - by Fangkai Yang
    I am developing a virtual device driver such that the user can write to the driver a process' pid and a virtual address, and the module will use these two values to get the memory contents of the target process. I am wondering if there is any easy functions that can fetch user page's data at this virtual address. I have tried get_user but this is not possible because the modules executing get_user at another process's context. I also tried to use ptrace_readdata, however, it seems that the file at /kernel/ptrace.c leaves a function access_process_vm undefined and also I don't know how to compile the source code of my module with this file (the linker seaches file in /linux/include by default). I am wondering if there are any other solutions...

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  • NSDictionary with key => String and Value => c-Style array

    - by Gautam Borad
    I need an NSDictionary which has key in the form of string (@"key1", @"key2") and value in the form of a C-style two-dimentional array (valueArray1,valueArray2) where valueArray1 is defined as : int valueArray1[8][3] = { {25,10,65},{50,30,75},{60,45,80},{75,60,10}, {10,70,80},{90,30,80},{20,15,90},{20,20,15} }; And same for valueArray2. My aim is given an NSString i need to fetch the corresponding two-dimentional array. I guess using an NSArray, instead of c-style array, will work but then i cannot initialize the arrays as done above (i have many such arrays). If, however, that is doable please let me know how. Currently the following is giving a warning "Passing argument 1 of 'dictionaryWithObjectsAndKeys:' from incompatible pointer type" : NSDictionary *myDict = [NSDictionary dictionaryWithObjectsAndKeys:valueArray1,@"key1", valueArray2,@"key2",nil];

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  • Web Page Rendering Capture

    - by Chaitanya
    I start with describing the problem itself. Rather than a problem I'm looking for a better solution. I have a asp.net page which has a bunch of images and a link underneath it, Each image is infact the latest rendering of the link underneath it. I scheduled a bat script which runs every hour to fetch the images through IECapt a web page rendering capture utility. One thing am annoyed about this utility is it takes a lot of time for the 20 images I have and for few because of the flash content it misses to take the actual screenshot of the website. Now I like to know can this rendering be done by traditional programming am not interested in using any utilities. I'm interested in trying this. The solution need not be necessarily a C# based am ready to try in any other language. Because it gives me a chance to learn. Thank you.

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  • Start position for a reused t- sql cursor?

    - by Span
    I'm working on a stored procedure that uses a cursor on a temporary table (I have read a bit about why cursors are undesirable, but in this situation I believe I still need to use one). In my procedure I need to step through the rows of the table twice. Having declared the cursor, already stepped through the temporary table once and closed the cursor, would the position of the cursor remain at the end of the table when re-opened or does it reposition itself to the initial starting position (ie: before the first row)? Alternatively, to reposition the cursor must I do a 'FETCH FIRST' before stepping through again? Am I right to assume the 'cost' of doing this repositioning and reusing the cursor would be less than deallocating and reallocating the cursor?

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  • Simple RSS parser for Android

    - by Andrioid
    Hello, I am trying to create my first Android application and I'm not all that experienced with Java development. In short, the application needs to do the following: On click, fetch a RSS feed online Parse it for data Show the data I've been browsing for guides, tutorials and documentation but the parsers I've found so far only deal with local strings or files or are way too complicated for me to go through at this point. Can you provide me a link to a good XML parser class (that is included in the Android SDK) Provide me with an example of its use. An example of how the feed would get fetched from the Internet (curl? or something internal?) (Bonus) Tips and hints on how this would be best achieved. Thanks in advance.

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  • TransactionScope and Connection Pooling

    - by Graham
    Hi, I'm trying to get a handle on whether we have a problem in our application with database connections using incorrect IsolationLevels. Our application is a .Net 3.5 database app using SQL Server 2005. I've discovered that the IsolationLevel of connections are not reset when they are returned to the connection pool (see here) and was also really surprised to read in this blog post that each new TransactionScope created gets its own connection pool assigned to it. Our database updates (via our business objects) take place within a TransactionScope (a new one is created for each business object graph update). But our fetches do not use an explicit transaction. So what I'm wondering is could we ever get into the situation where our fetch operations (which should be using the default IsolationLevel - Read Committed) would reuse a connection from the pool which has been used for an update, and inherit the update IsolationLevel (RepeatableRead)? Or would our updates be guaranteed to use a different connection pool seeing as they are wrapped in a TransactionScope? Thanks in advance, Graham

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  • Memcache textual protocol cheatsheet ?

    - by Maxim Veksler
    Memcached interface is implemented using a textual protocol. Sometimes it's very useful to be to fetch data stored on your remote server simply by invoking netcat with some shell kung fu, for example: To download the XML result of your nightly data crunching job you might run something like: echo "get 95ec6c7693ec53771c8a3fb1061562b8" | nc localhost 11211 > console_overview_06_04_2010.xml The interesting part here is get SOME_UNIQUE_KEY which is part of the memcached protocol. What other useful usages can you suggest in regard to the ability to interact with memcached using nothing more then command line tools? Thank you, Maxim.

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  • CakePHP with AJAX loaded pages

    - by Jacques Wolfghang
    Hi there. I am trying to create a website in which all interaction takes place on a single page which has its main content filled via AJAX. The site is effectively a template with a central interaction area. Users can click links which results in an AJAX request to fetch a new page to display in the interaction area. In this way, the page never refreshes, instead it has its content fetched and displayed via AJAX. I have found that the CakePHP framework has many useful features that could work with this project, however, I do not no if the Cake's MVC architecture would work with my single page architecture. So, what I really want to know is if I can use CakePHP features and functions on a website of this type, and also if anyone could give me any helpful tips on how I would go about implementing it. I am sorry if this is rambling or vague, english is not my mother tongue so I have trouble expressing what I have to say clearly. Thank you for your time.

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  • How to solve lazy initialization exception using JPA and Hibernate as provider

    - by rupertin
    I am working on a project for a customer who wants to use lazy initialization. They always get "lazy initialization exception" when mapping classes with the default lazy loading mode. @JoinTable(name = "join_profilo_funzionalita", joinColumns = {@JoinColumn(name = "profilo_id", referencedColumnName = "profilo_id")}, inverseJoinColumns = {@JoinColumn(name = "funzionalita_id", referencedColumnName = "funzionalita_id")}) //@ManyToMany(fetch=FetchType.EAGER) - no exceptions if uncommented @ManyToMany private Collection<Funzionalita> funzionalitaIdCollection; Is there a standard pattern using JPA classes to avoid this error? Snippets are welcome, thanks a lot for your time.

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  • Maintain set of local commits working with git-svn

    - by benizi
    I am using git to develop against a project hosted in subversion, using git-svn: git svn clone svn://project/ My general workflow has been to repeatedly edit-and-commit on the master branch, then commit to the svn repository via: git stash git svn dcommit git stash apply One of the local modifications that 'stash' command is preserving, that I don't want to commit to the svn repository, is a changed database connection string. What's the most convenient way to keep this local change without the extra 'stash' steps? I suspect that something like 'stash' or 'quilt' is what I'm looking for, but I'm still new enough to git that I think I'm missing some terminology that would lead to the exact incantation. Update: The only solution I found that seems to avoid the git stash + git-svn action + git stash apply series was to update the git-svn ref manually: (check in local-only change to 'master', then...) $ cat .git/refs/master > .git/refs/remote/git-svn $ git svn fetch (with at least one new SVN revision) And that leaves the local-only commit as a weird (probably unsafe) commit between two svn revisions.

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  • Populate data Crystal Report from a query

    - by Selom
    hi big bro and sis, Im having a problem with how to display data using crystal report programmatically and need your help. Im using vb.net for my project. I have a form that I called reportFrm on which I put the CrystalReportViewer1. I also added the CrystalReport1.rpt to my project and the CrystalReport1.rpt contains a textbox called firstname. i would like that when the reportFrm loads, it makes the following query and to fetch the firstname and put it in the textbox firstname: query: Dim cmd As New SQLiteCommand("SELECT * FROM personal_details JOIN studies USING staff_ID WHERE staff_ID = '" + detailsFrm.Label13.Text + "'", conn) my problem is that Im fetching data from two different tables and I don't how to do this. Thanks for helping

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  • JPA entities -- org.hibernate.TypeMismatchException

    - by shane lee
    Environment: JDK 1.6, JEE5 Hibernate Core 3.3.1.GA, Hibernate Annotations 3.4.0.GA DB:Informix Used reverse engineering to create my persistence entities from db schema [NB:This is a schema in work i cannot change] Getting exception when selecting list of basic_auth_accounts org.hibernate.TypeMismatchException: Provided id of the wrong type for class ebusiness.weblogic.model.UserAccounts. Expected: class ebusiness.weblogic.model.UserAccountsId, got class ebusiness.weblogic.model.BasicAuthAccountsId Both basic_auth_accounts and user_accounts have composite primary keys and one-to-one relationships. Any clues what to do here? This is pretty important that i get this to work. Cannot find any substantial solution on the net, some say to create an ID class which hibernate has done, and some say not to have a one-to-one relationship. Please help me!! /** * BasicAuthAccounts generated by hbm2java */ @Entity @Table(name = "basic_auth_accounts", schema = "ebusdevt", catalog = "ebusiness_dev", uniqueConstraints = @UniqueConstraint(columnNames = { "realm_type_id", "realm_qualifier", "account_name" })) public class BasicAuthAccounts implements java.io.Serializable { private BasicAuthAccountsId id; private UserAccounts userAccounts; private String accountName; private String hashedPassword; private boolean passwdChangeReqd; private String hashMethodId; private int failedAttemptNo; private Date failedAttemptDate; private Date lastAccess; public BasicAuthAccounts() { } public BasicAuthAccounts(UserAccounts userAccounts, String accountName, String hashedPassword, boolean passwdChangeReqd, String hashMethodId, int failedAttemptNo) { this.userAccounts = userAccounts; this.accountName = accountName; this.hashedPassword = hashedPassword; this.passwdChangeReqd = passwdChangeReqd; this.hashMethodId = hashMethodId; this.failedAttemptNo = failedAttemptNo; } public BasicAuthAccounts(UserAccounts userAccounts, String accountName, String hashedPassword, boolean passwdChangeReqd, String hashMethodId, int failedAttemptNo, Date failedAttemptDate, Date lastAccess) { this.userAccounts = userAccounts; this.accountName = accountName; this.hashedPassword = hashedPassword; this.passwdChangeReqd = passwdChangeReqd; this.hashMethodId = hashMethodId; this.failedAttemptNo = failedAttemptNo; this.failedAttemptDate = failedAttemptDate; this.lastAccess = lastAccess; } @EmbeddedId @AttributeOverrides( { @AttributeOverride(name = "realmTypeId", column = @Column(name = "realm_type_id", nullable = false, length = 32)), @AttributeOverride(name = "realmQualifier", column = @Column(name = "realm_qualifier", nullable = false, length = 32)), @AttributeOverride(name = "accountId", column = @Column(name = "account_id", nullable = false)) }) public BasicAuthAccountsId getId() { return this.id; } public void setId(BasicAuthAccountsId id) { this.id = id; } @OneToOne(fetch = FetchType.LAZY) @PrimaryKeyJoinColumn @NotNull public UserAccounts getUserAccounts() { return this.userAccounts; } public void setUserAccounts(UserAccounts userAccounts) { this.userAccounts = userAccounts; } /** * BasicAuthAccountsId generated by hbm2java */ @Embeddable public class BasicAuthAccountsId implements java.io.Serializable { private String realmTypeId; private String realmQualifier; private long accountId; public BasicAuthAccountsId() { } public BasicAuthAccountsId(String realmTypeId, String realmQualifier, long accountId) { this.realmTypeId = realmTypeId; this.realmQualifier = realmQualifier; this.accountId = accountId; } /** * UserAccounts generated by hbm2java */ @Entity @Table(name = "user_accounts", schema = "ebusdevt", catalog = "ebusiness_dev") public class UserAccounts implements java.io.Serializable { private UserAccountsId id; private Realms realms; private UserDetails userDetails; private Integer accessLevel; private String status; private boolean isEdge; private String role; private boolean chargesAccess; private Date createdTimestamp; private Date lastStatusChangeTimestamp; private BasicAuthAccounts basicAuthAccounts; private Set<Sessions> sessionses = new HashSet<Sessions>(0); private Set<AccountGroups> accountGroupses = new HashSet<AccountGroups>(0); private Set<UserPrivileges> userPrivilegeses = new HashSet<UserPrivileges>(0); public UserAccounts() { } public UserAccounts(UserAccountsId id, Realms realms, UserDetails userDetails, String status, boolean isEdge, boolean chargesAccess) { this.id = id; this.realms = realms; this.userDetails = userDetails; this.status = status; this.isEdge = isEdge; this.chargesAccess = chargesAccess; } @EmbeddedId @AttributeOverrides( { @AttributeOverride(name = "realmTypeId", column = @Column(name = "realm_type_id", nullable = false, length = 32)), @AttributeOverride(name = "realmQualifier", column = @Column(name = "realm_qualifier", nullable = false, length = 32)), @AttributeOverride(name = "accountId", column = @Column(name = "account_id", nullable = false)) }) @NotNull public UserAccountsId getId() { return this.id; } public void setId(UserAccountsId id) { this.id = id; } @OneToOne(fetch = FetchType.LAZY, mappedBy = "userAccounts") public BasicAuthAccounts getBasicAuthAccounts() { return this.basicAuthAccounts; } public void setBasicAuthAccounts(BasicAuthAccounts basicAuthAccounts) { this.basicAuthAccounts = basicAuthAccounts; } /** * UserAccountsId generated by hbm2java */ @Embeddable public class UserAccountsId implements java.io.Serializable { private String realmTypeId; private String realmQualifier; private long accountId; public UserAccountsId() { } public UserAccountsId(String realmTypeId, String realmQualifier, long accountId) { this.realmTypeId = realmTypeId; this.realmQualifier = realmQualifier; this.accountId = accountId; } @Column(name = "realm_type_id", nullable = false, length = 32) @NotNull @Length(max = 32) public String getRealmTypeId() { return this.realmTypeId; } public void setRealmTypeId(String realmTypeId) { this.realmTypeId = realmTypeId; } @Column(name = "realm_qualifier", nullable = false, length = 32) @NotNull @Length(max = 32) public String getRealmQualifier() { return this.realmQualifier; } public void setRealmQualifier(String realmQualifier) { this.realmQualifier = realmQualifier; } @Column(name = "account_id", nullable = false) public long getAccountId() { return this.accountId; } public void setAccountId(long accountId) { this.accountId = accountId; } Main Code for classes are:

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  • Cross-domain policy issues after redirect in Flash

    - by ggambett
    I'm having trouble with a cross-domain policy. I'm using the AS3 Loader to fetch an image; I'm making it load the policy file, like this : var pLoader : Loader = new Loader(); var pContext : LoaderContext = new LoaderContext(); pContext.checkPolicyFile = true; pLoader.load(new URLRequest(sURL), pContext); This works fine as long as the image is directly accessible; however, when the server sends a redirect, the loader follows it but loses the checkPolicyFile flag, resulting in a SecurityException - that is, it doesn't check the cross-domain policy of the redirected URL. I've found a solution here ( http://www.stevensacks.net/2008/12/23/solution-as3-security-error-2122-with-300-redirects ) but looks fragile (that is, looks like it will fail if there's more than one redirect). What would be the correct way of doing this?

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  • FullCalendar: Change agendaDay background-color..

    - by Nick-ACNB
    While I have seen this question asked, I haven't seen the answer. Basically, I just want to be able to color the background-color of the TD from a certain range.. Say I have my calendar that has slot minutes every 15 minutes and from 9am to 9pm, I would like to only color differently 10am to 3pm. This information would be coming from a feed but that is not an issue. I haven't found the TDs relating to a set time inside the calendar. Perhaps I missed something? :) I am rather new to jQuery and fullCalendar. Also, another quick question that is unrelated to the main one: is it possible from an event handler to get the id of the calendar that launched it? I have multiple calendars on my page to simulate something like a Gantt view. This will let me be able to fetch the right feed and populate the right events. Thank you for your time.

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  • Multithreading/Parallel Processing in PHP

    - by manyxcxi
    I have a PHP script that will generate a report using PHPExcel from data queried from a MySQL DB. Currently, it is linear in processing in that it gets the data back from MySQL, reads in the Excel template, writes the data to the template, then outputs it. I have optimized the code to the point that the data is only iterated over once, and there is very little processing done on the PHP side. The query returns hundreds of lines in less than .001 seconds, so it is running fast enough. After some timing I have found my bottlenecks to be (surprise, surprise) reading the template and writing the output. I would like to do this: Spawn a thread/process to read the template Spawn a thread/process to fetch the data Return back to parent thread - Parent thread will wait until both are complete Proceed on as normal My main questions are is this possible, is it worth it? If yes to both, how would you tackle it? Also, it is PHP 5 on CentOS

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  • IOC Container Handling State Params in Non-Default Constructor

    - by Mystagogue
    For the purpose of this discussion, there are two kinds of parameters an object constructor might take: state dependency or service dependency. Supplying a service dependency with an IOC container is easy: DI takes over. But in contrast, state dependencies are usually only known to the client. That is, the object requestor. It turns out that having a client supply the state params through an IOC Container is quite painful. I will show several different ways to do this, all of which have big problems, and ask the community if there is another option I'm missing. Let's begin: Before I added an IOC container to my project code, I started with a class like this: class Foobar { //parameters are state dependencies, not service dependencies public Foobar(string alpha, int omega){...}; //...other stuff } I decide to add a Logger service depdendency to the Foobar class, which perhaps I'll provide through DI: class Foobar { public Foobar(string alpha, int omega, ILogger log){...}; //...other stuff } But then I'm also told I need to make class Foobar itself "swappable." That is, I'm required to service-locate a Foobar instance. I add a new interface into the mix: class Foobar : IFoobar { public Foobar(string alpha, int omega, ILogger log){...}; //...other stuff } When I make the service locator call, it will DI the ILogger service dependency for me. Unfortunately the same is not true of the state dependencies Alpha and Omega. Some containers offer a syntax to address this: //Unity 2.0 pseudo-ish code: myContainer.Resolve<IFoobar>( new parameterOverride[] { {"alpha", "one"}, {"omega",2} } ); I like the feature, but I don't like that it is untyped and not evident to the developer what parameters must be passed (via intellisense, etc). So I look at another solution: //This is a "boiler plate" heavy approach! class Foobar : IFoobar { public Foobar (string alpha, int omega){...}; //...stuff } class FoobarFactory : IFoobarFactory { public IFoobar IFoobarFactory.Create(string alpha, int omega){ return new Foobar(alpha, omega); } } //fetch it... myContainer.Resolve<IFoobarFactory>().Create("one", 2); The above solves the type-safety and intellisense problem, but it (1) forced class Foobar to fetch an ILogger through a service locator rather than DI and (2) it requires me to make a bunch of boiler-plate (XXXFactory, IXXXFactory) for all varieties of Foobar implementations I might use. Should I decide to go with a pure service locator approach, it may not be a problem. But I still can't stand all the boiler-plate needed to make this work. So then I try this: //code named "concrete creator" class Foobar : IFoobar { public Foobar(string alpha, int omega, ILogger log){...}; static IFoobar Create(string alpha, int omega){ //unity 2.0 pseudo-ish code. Assume a common //service locator, or singleton holds the container... return Container.Resolve<IFoobar>( new parameterOverride[] {{"alpha", alpha},{"omega", omega} } ); } //Get my instance: Foobar.Create("alpha",2); I actually don't mind that I'm using the concrete "Foobar" class to create an IFoobar. It represents a base concept that I don't expect to change in my code. I also don't mind the lack of type-safety in the static "Create", because it is now encapsulated. My intellisense is working too! Any concrete instance made this way will ignore the supplied state params if they don't apply (a Unity 2.0 behavior). Perhaps a different concrete implementation "FooFoobar" might have a formal arg name mismatch, but I'm still pretty happy with it. But the big problem with this approach is that it only works effectively with Unity 2.0 (a mismatched parameter in Structure Map will throw an exception). So it is good only if I stay with Unity. The problem is, I'm beginning to like Structure Map a lot more. So now I go onto yet another option: class Foobar : IFoobar, IFoobarInit { public Foobar(ILogger log){...}; public IFoobar IFoobarInit.Initialize(string alpha, int omega){ this.alpha = alpha; this.omega = omega; return this; } } //now create it... IFoobar foo = myContainer.resolve<IFoobarInit>().Initialize("one", 2) Now with this I've got a somewhat nice compromise with the other approaches: (1) My arguments are type-safe / intellisense aware (2) I have a choice of fetching the ILogger via DI (shown above) or service locator, (3) there is no need to make one or more seperate concrete FoobarFactory classes (contrast with the verbose "boiler-plate" example code earlier), and (4) it reasonably upholds the principle "make interfaces easy to use correctly, and hard to use incorrectly." At least it arguably is no worse than the alternatives previously discussed. One acceptance barrier yet remains: I also want to apply "design by contract." Every sample I presented was intentionally favoring constructor injection (for state dependencies) because I want to preserve "invariant" support as most commonly practiced. Namely, the invariant is established when the constructor completes. In the sample above, the invarient is not established when object construction completes. As long as I'm doing home-grown "design by contract" I could just tell developers not to test the invariant until the Initialize(...) method is called. But more to the point, when .net 4.0 comes out I want to use its "code contract" support for design by contract. From what I read, it will not be compatible with this last approach. Curses! Of course it also occurs to me that my entire philosophy is off. Perhaps I'd be told that conjuring a Foobar : IFoobar via a service locator implies that it is a service - and services only have other service dependencies, they don't have state dependencies (such as the Alpha and Omega of these examples). I'm open to listening to such philosophical matters as well, but I'd also like to know what semi-authorative reference to read that would steer me down that thought path. So now I turn it to the community. What approach should I consider that I havn't yet? Must I really believe I've exhausted my options?

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  • AJAX: how to get progress feedback in web apps, and to avoid timeouts on long requests?

    - by David Dombrowsky
    This is a general design question about how to make a web application that will receive a large amount of uploaded data, process it, and return a result, all without the dreaded spinning beach-ball for 5 minutes or a possible HTTP timeout. Here's the requirements: make a web form where you can upload a CSV file containing a list of URLs when the user clicks "submit", the server fetches the file, and checks each URL to see if its alive, and what the title tag of the page is. the result is a downloadable CSV file containing the URL, and the result HTTP code the input CSV can be very large ( 100000 rows), so the fetch process might take 5-30 minutes. My solution so far is to have a spinning javascript loop on the client site, which queries the server every second to determine the overall progress of the job. This seems kludgy to me, and I'm hesitant to accept this as the best solution. I'm using perl, template toolkit, and jquery, but any solution using any web technology would be acceptable.

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  • Updating Visual FoxPro from SQL Server

    - by David Stein
    I'm trying to update some simple Visual FoxPro tables with SQL Server. I've created a linked server with the following: sp_addlinkedserver @server = 'UTIL', @srvproduct = 'VFP', @provider = 'VFPOLEDB', @datasrc = 'L:\M2MDATA\Util\util.dbc' GO And the following works: select * from UTIL...utcomp However, I cannot use the following statement: update util...utcomp set fmaddress = '123 Elvis Dr.' where fcsqldb = 'M2MDATA01' I receive the error: OLE DB provider "VFPOLEDB" for linked server "util" returned message "Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done.". Msg 7333, Level 16, State 2, Line 2 Cannot fetch a row using a bookmark from OLE DB provider "VFPOLEDB" for linked server "util". I have the latest version (9.0) installed so I should have the latest provider. Am I doing something wrong? Is it not possible to update VFP from SQL?

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  • How can I tell if a user came to a page via a Google Adwords PPC campaign?

    - by Mike Crittenden
    I have a form with a hidden "Came from Adwords" field that will be marked true (via javascript) if the user came from a PPC campaign and will stay false if not. That way, when the user submits the form, we will have each submission stored with info about whether that submission came from adwords or not, all without the user knowing. How can I fetch this info? I know that Google sets a cookie called Conversion whenever you click a PPC link to a page, but the cookie's content is just random alphanumeric characters. Is there something in the Analytics/Adwords API that will let me test for this? Do I have to resort to adding ?ref=adwords or something onto the PPC URLs so that I can test that way?

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  • What's an efficient way of calculating the nearest point?

    - by Griffo
    I have objects with location data stored in Core Data, I would like to be able to fetch and display just the nearest point to the current location. I'm aware there are formulas which will calculate the distance from current lat/long to a stored lat/long, but I'm curious about the best way to perform this for a set of 1000+ points stored in Core Data. I know I could just return the points from Core Data to an array and then loop through that looking for the min value for distance between the points but I'd imagine there's a more efficient method, possibly leveraging Core Data in some way. Any insight would be appreciated. EDIT: I don't know how I missed this on my initial search but this SO question suggests just iterating through an array of Core Data objects but limiting the array size with a bounding box based on the current location. Is this the best I can do?

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  • Collection.contains(Enum.Value) in HQL?

    - by Seth
    I'm a little confused about how to do something in HQL. So let's say I have a class Foo that I'm persisting in hibernate. It contains a set of enum values, like so: public class Foo { @CollectionOfElements private Set<Bar> barSet = new HashSet<Bar>(); //getters and setters here ... } and public enum Bar { A, B } Is there an HQL statement I can use to fetch only Foo instances who'se barSet containst Bar.B? List foos = session.createQuery("from Foo as foo " + "where foo.barSet.contains.Bar.B").list(); Or am I stuck fetching all Foo instances and filtering them out at the DAO level? List foos = session.createQuery("from Foo as foo").list(); List results = new ArrayList(); for(Foo f : foos) { if(f.barSet.contains(Bar.B)) results.add(f); } Thanks!

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  • 301 versus inline rewrites

    - by Kristoffer S Hansen
    I'm in the process of adding 'pretty' URLs to an existing CMS, the menu is auto generated and the new 'pretty' URLs are to be handled independently as a seperate module. The auto-generated menu allways has URLs that look like this index.php?menu_id=n which ofcourse we would like to see as eg. /news or /products I'm currently at the point where I have to decide if I'm going to rewrite all output of the current system or simply put in a hook where I redirect to the 'pretty' URL. To put it differently, should i connect to the database, fetch all 'pretty' URLs, run through the existing output from WYSIWYG's, news modules, forums etc. and do some str_replace or other string manipulation (which I think would be a rather tedious and boring process), or should I simply hook in and throw a 301 redirecting index.php?menu_id=3 to /news will Google (or other search engines) penalize me for having 301's in the menus?

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  • open/save file in smartGWT

    - by Karthikeyan
    Hi All, I have implemented RPCService, RPCServiceAsync & RPCServieImpl. On clicking a button a service in server side will be called and it will fetch data from DB and file is created. Once the file is created, then i need to open that file in client side and need to prompt a dialog box with open/save options. how can i implement this opening a file part. pls suggest a way to implement t.. Reply pls.. thanks in advance....

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  • ASP.NET MVC 2 RC2 Model Binding with NVARCHAR NOT NULL column

    - by Gary McGill
    I have a database column defined as NVARCHAR(1000) NOT NULL DEFAULT(N'') - in other words, a non-nullable text column with a default value of blank. I have a model class generated by the Linq-to-SQL Classes designer, which correctly identifies the property as not nullable. I have a TextAreaFor in my view for that property. I'm using UpdateModel in my controller to fetch the value from the form and populate the model object. If I view the web page and leave the text area blank, UpdateModel insists on setting the property to NULL instead of empty string. (Even if I set the value to blank in code prior to calling UpdateModel, it still overwrites that with NULL). Which, of course, causes the subsequent database update to fail. I could check all such properties for NULL after calling UpdateModel, but that seems ridiculous - surely there must be a better way? Please don't tell me I need a custom model binder for such a simple scenario...!

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  • sql query to incrementally modify where condition until result contains what is required

    - by iamrohitbanga
    I need an sql query to select some items from a table based on some condition which is based on a category field. As an example consider a list of people and I fetch the people from a particular age group from the database. I want to check if the result contains at least one result from each of a number of categories. If not I want to modify the age group by extending it and check the results again. This is repeated until I get an age group for which one result is present for each category. Right now i am doing this by analyzing the results and modifying the sql query. So a number of sql select queries are sent. What is the most efficient way of doing this? I am invoking the select queries from a java program using jdbc. I am using mysql database.

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