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  • How to select item in jComboBox

    - by jtnire
    Hi folks, I have a jComboBox that I am populating with some objects. The objects are of a type which I have made myself, and include a String and an int. The object's toString method returns the String, which is displayed in the Combo Box. Now, I wish to select an item in the Combo Box with code. How do I do this? There are multiple items starting with the same letter Thanks

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  • Another Spring + Hibernate + JPA question

    - by Albinoswordfish
    I'm still struggling with changing my Spring Application to use Hibernate with JPA to do database activities. Well apparently from a previous post I need an persistence.xml file. However do I need to make changes to my current DAO class? public class JdbcProductDao extends Dao implements ProductDao { /** Logger for this class and subclasses */ protected final Log logger = LogFactory.getLog(getClass()); public List<Product> getProductList() { logger.info("Getting products!"); List<Product> products = getSimpleJdbcTemplate().query( "select id, description, price from products", new ProductMapper()); return products; } public void saveProduct(Product prod) { logger.info("Saving product: " + prod.getDescription()); int count = getSimpleJdbcTemplate().update( "update products set description = :description, price = :price where id = :id", new MapSqlParameterSource().addValue("description", prod.getDescription()) .addValue("price", prod.getPrice()) .addValue("id", prod.getId())); logger.info("Rows affected: " + count); } private static class ProductMapper implements ParameterizedRowMapper<Product> { public Product mapRow(ResultSet rs, int rowNum) throws SQLException { Product prod = new Product(); prod.setId(rs.getInt("id")); prod.setDescription(rs.getString("description")); prod.setPrice(new Double(rs.getDouble("price"))); return prod; } } } Also my Product.Java is below public class Product implements Serializable { private int id; private String description; private Double price; public void setId(int i) { id = i; } public int getId() { return id; } public String getDescription() { return description; } public void setDescription(String description) { this.description = description; } public Double getPrice() { return price; } public void setPrice(Double price) { this.price = price; } public String toString() { StringBuffer buffer = new StringBuffer(); buffer.append("Description: " + description + ";"); buffer.append("Price: " + price); return buffer.toString(); } } I guess my question would be, How would my current classes change after using Hibernate + JPA with an Entity Manager

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  • How to assign a value of a property to a var ONLY if the object isn't null

    - by Blankman
    In my code, is there a shorthand that I can use to assign a variable the value of a object's property ONLY if the object isn't null? string username = SomeUserObject.Username; // fails if null I know I can do a check like if(SomeUserObject != null) but I think I saw a shorthand for this kind of test. I tried: string username = SomeUserObject ?? "" : SomeUserObject.Username; But that doesn't work.

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  • JPA2 + Hibernate + Order By

    - by Jan
    Hi. Is it possible (using Hibernate and JPA2 Criteria Builder [1]) to order by a method's result rather than an entity's member? public class X { protected X() {} public String member; public String getEvaluatedValue() { // order by return "some text " + member; } } What I want to achive is order by the result of getEvaluatedValue(). Is that possible? Thanks in advanced. [1] http://docs.jboss.org/hibernate/entitymanager/3.5/reference/en/html_single/#querycriteria

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  • How to parse date in different languages.

    - by xrx215
    Hi, with browser language french i have a string which has date in the format v = 13/01/2010 10:54:00. when i say Date.parse(v) i get the result as Date.parse(v) 1293897240000 Number with browser language german i have a string which has date int he format v = 13.01.2010 10:54:00 when i say Date.parse(v) i get the result as Date.parse(v) NaN Number can you please tell me how to parse date when it is in german language. Thanks

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  • A few questions about char pointers.

    - by m4design
    1- How does this work: char *ptr = "hi"; Now the compiler will put this string in the memory (I'm guessing the stack), and create a pointer to it? Is this is how it works? 2- Also if it is created locally in a function, when the function returns will the memory occupied by the string be freed? 3- Last but not least, why is this not allowed: ptr[0] = 'H'; ?

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  • ASP.NET MVC: calling a controller method from view

    - by Alice in wonderland
    I'm implementing paging on an ASP.NET MVC view, and I want to call a method in the controller from the view. Code in the view: <a href="<%= Url.Action("Search", new { page = NextPage(Request["exactPage"])).ToString()}) %>"> Controller method: public string NextPage(string currentPage) { return (int.Parse(currentPage) + 1).ToString(); } How can I call the NextPage method from the view? thanks!

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  • SQL-wrappers (activerecord) to recommened for python?

    - by Horace Ho
    is there an activerecord (any similar SQL-wrapper) for python? which is good for: used in a server-side python script light-weight supports MySQL what I need to do: insert (filename, file size, file md5, the file itself) into (string, int, string, BLOB) columns if the same file (checksum + filename) does not exist in db thx

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  • free (or cheap) css or xhtmlcss editing tools

    - by Crash893
    I'm pretty new to web development and I am working on our company website. I've thus far been doing all the work in notepad++ but i was wondering if there was something a little more friendly to the eyes for layout and WYSIWYG formatting. the catch is i have basically no budget so anything like dreamweaver (which i heard is not the best application for tis anyway ) is out. any suggestions or hints would be greatly appreciated

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  • pdf <pre> equivalent

    - by ddowns
    I'm trying to put some code examples in a pdf, but copying them out messes up the formatting and rearranges the lines, there's a lot of manual cleanup needed after pasting. Is there a equivalent to html's pre for PDFs? For "this" block of text respect line breaks, spacing, and copy as plain text like its shown. The closest thing I can see is adding note annotations next to every code example.

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  • I really need help with Delphi... text files and arrays with sorting?

    - by DTB
    I have read a text file (of names) into an array and I need how to sort those names into alphabetical order and display that in a rich edit? Please give me the code from this point onwards: readln(myfile,arr[i]); 'myfile' is the text file and 'arr' is the array of string. Also, I have declared 'i' as an integer even though it is a array of string. Is that OK?

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  • loading method based on URL

    - by steeped
    I am trying to build a small mvc-based application. How do I call a method in a class based on a query string? For example, the $_GET query string is being set as load_master_form http://www.domain.com/settings/load_master_form And to call the method within the settings class, I am doing: function __construct(){ $this->{$_GET['method']}(); } But obviously that doesn't work - it just isn't possible to load a method like that. So how would it be done?

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  • [VB.Net] Typecasting generic parameters.

    - by CFP
    Hello world! Using the following code: Function GetSetting(Of T)(ByVal SettingName As String, ByRef DefaultVal As T) As T Return If(Configuration.ContainsKey(SettingName), CType(Configuration(SettingName), T), DefaultVal) End Function Yields the following error: Value of type 'String' cannot be converted to 'T'. Any way I could specify that in all cases, the conversion will indeed be possible (I'm basically getting integers, booleans, doubles and strings). Thanks!

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  • Crystal Reports : How to add an external assembly class?

    - by Sunil
    I am using VS2010, CrystalReport13 & MVC3. My problem is unable to add an external assembly in Crystal Report using "Database Expert" Option. I have a class named WeeklyReportModel in an external assembly. In my web project, data retrieving from DB as IEnumerable collection of WeeklyReportModel. I tried ProjectData - .NetObjects in Crystal Report for adding the WeeklyReportModel. But this external assembly is not showing under ".NetObjects". Then I tried other option as Create New Connection - ADO.Net – Make New Connection and pointed this External Assembly. It has been added under Ado.Net node, but while expanding displays as "...no items found..." Totally frustrated. Please help. External Assembly Class: namespace SMS.Domain { public class WeeklyReportModel { public int StoreId { get; set; } public string StoreName{ get; set; } public decimal Saturday { get; set; } public decimal Sunday { get; set; } public decimal Monday { get; set; } public decimal Tuesday { get; set; } public decimal Wednesday { get; set; } public decimal Thurday { get; set; } public decimal Friday { get; set; } public decimal Average { get; set; } public string DateRange { get; set; } } } In Controller-action[Data retrieving as Collection Of WeeklyReportModel] namespace SMS.UI.Controllers { public class ReportController : Controller { public ActionResult StoreWeeklyReport(string id) { DateTime weekStart, weekClose; string[] dateArray = id.Split('_'); weekStart = Convert.ToDateTime(dateArray[0].ToString()); weekClose = Convert.ToDateTime(dateArray[1].ToString()); SMS.Infrastructure.Report.AuditReport weeklyReport = new SMS.Infrastructure.Report.AuditReport(); IEnumerable<SMS.Domain.WeeklyReportModel> weeklyRpt = weeklyReport.ReportByStore().WeeklyReport(weekStart, weekClose); Session["WeeklyData"] = weeklyRpt; Response.Redirect("~/Reports/Weekly/StoreWeekly.aspx"); return View(); } } } Thanks in advance.

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  • Ruby complex validation

    - by pcasa
    Have a product that belongs to a category. Want to create a promotion for a short period of time (lets say a week or two), but their can be only one promotion per category during that time. How can I create a custom validation for this? product class belongs_to :categories name:string desc:text reg_price:decimal category_id:integer promo_active:boolean promo_price:decimal promo_start:datetime promo_end:datetime end category class has_many :products name:string end

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  • Scala return type for tuple-functions

    - by Felix
    Hello Guys, I want to make a scala function which returns a scala tuple. I can do a function like this: def foo = (1,"hello","world") and this will work fine, but now I want to tell the compiler what I expect to be returned from the function instead of using the built in type inference (after all, I have no idea what a (1,"hello","world") is) I thought I remembered the classname being something like Tuple3[Int,String,String] but that doesnt work for me. Suggestions? :D (ps: I love stack overflow!)

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  • How to fix this Speech Recognition on C# wicked bug?

    - by aF
    Hello, I have this code in my C# project: public void startRecognition(string pName) { presentationName = pName; if (WaveNative.waveInGetNumDevs() > 0) { string grammar = System.Environment.GetEnvironmentVariable("PUBLIC") + "\\SoundLog\\Presentations\\" + presentationName + "\\SpeechRecognition\\soundlog.cfg"; if (File.Exists(grammar)) { File.Delete(grammar); } executeCommand(); /// Create an instance of SpSharedRecoContextClass which will be used /// to interface with the incoming audio stream recContext = new SpSharedRecoContextClass(); // Create the grammar object recContext.CreateGrammar(1, out recGrammar); //recContext.CreateGrammar(2, out recGrammar2); // Set up dictation mode //recGrammar2.SetDictationState(SpeechLib.SPRULESTATE.SPRS_ACTIVE); //recGrammar2.SetGrammarState(SPGRAMMARSTATE.SPGS_ENABLED); // Set appropriate grammar mode if (File.Exists(grammar)) { recGrammar.LoadCmdFromFile(grammar, SPLOADOPTIONS.SPLO_STATIC); //recGrammar.SetDictationState(SpeechLib.SPRULESTATE.SPRS_INACTIVE); recGrammar.SetGrammarState(SPGRAMMARSTATE.SPGS_ENABLED); recGrammar.SetRuleIdState(0, SPRULESTATE.SPRS_ACTIVE); } /// Bind a callback to the recognition event which will be invoked /// When a dictated phrase has been recognised. recContext.Recognition += new _ISpeechRecoContextEvents_RecognitionEventHandler(handleRecognition); // System.Windows.Forms.MessageBox.Show(recContext.ToString()); // gramática compilada } } private static void handleRecognition(int StreamNumber, object StreamPosition, SpeechLib.SpeechRecognitionType RecognitionType, SpeechLib.ISpeechRecoResult Result) { string temp = Result.PhraseInfo.GetText(0, -1, true); _recognizedText = ""; // System.Windows.Forms.MessageBox.Show(temp); // System.Windows.Forms.MessageBox.Show(recognizedWords.Count.ToString()); foreach (string word in recognizedWords) { if (temp.Contains(word)) { // System.Windows.Forms.MessageBox.Show("yes"); _recognizedText = word; } } } This codes generates a dll that I use in another application. Now, the wicked bug: - when I run the startRecognition method in the beginning of the execution of the other application, this codes works very well. But when I run it some time after the beginning, this codes works but the handleRecognition method is never called. I see that the words are recognized because they appear on the Microsoft Speech Recognition app, but the handler method is never called. Do you know what's the problem with this code? Thanks in advance :D

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  • How can a button click method find out which item is selected in a ListView?

    - by Ian Bayley
    I have a single screen with a bank of buttons below a ListView. Entries on the ListView light up in orange when I scroll so I assume that are selected. When I then press the "Delete" button I want the onClickListener to remove the currently selected entry. But getSelectedItemPosition() always gives me -1. If I can't hope to use the GUI controls in this way, please give me another way of getting the same result. I have even tried setting the onClickListener of the List View to store the index before the button is pressed (in case pressing the button unselects the entry) but even that is always -1 it seems. Here's the code (without the modification which didn't work) package com.bayley; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.EditText; import android.widget.ListView; import java.util.ArrayList; /** * * @author p0074564 */ public class September extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.main); final ListView myListView = (ListView) findViewById(R.id.myListView); Button addButton = (Button) findViewById(R.id.AddButton); Button deleteButton = (Button) findViewById(R.id.DeleteButton); final EditText editText = (EditText) findViewById(R.id.myEditText); final ArrayList<String> todoItems = new ArrayList<String>(); todoItems.add("Monday"); todoItems.add("Tuesday"); todoItems.add("Wednesday"); final ArrayAdapter<String> aa = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, todoItems); myListView.setAdapter(aa); addButton.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { todoItems.add(editText.getText().toString()); aa.notifyDataSetChanged(); } }); deleteButton.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { // always returns -1 unfortunately ie nothing is ever selected int index = myListView.getSelectedItemPosition(); if (index >= 0) { todoItems.remove(index); } aa.notifyDataSetChanged(); } }); } }

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  • How to emulate PHPs preg_split in ruby to capture offsets and delimiters?

    - by dimus
    I wonder if there is a way to get offsets and delimiters while I am splitting a string in ruby analagous to PHP preg_split: preg_split("/( |&nbsp;|<|>|\t|\n|\r|;|\.)/i", $html_string, -1, PREG_SPLIT_DELIM_CAPTURE|PREG_SPLIT_OFFSET_CAPTURE); I imagine I can achieve it by traversing string by characters or using something heavy as treetop, but I would like to use something more convenient.

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  • remove/ignore float from outer div

    - by acidzombie24
    This may sound weird but i have some css which aligns mys divs. In one place i also use http://www.brunildo.org/test/img_center.html which centers images. Now i want my divs inside a larger div to go to another line if this one gets full. float: left seems to be the answer. The problem is it ruins my formatting. Including solution in the above link. I have this test code. If i remove the width and float it looks fine except it may take up too much space and not go to another line. I was thinking i could use float on an outerdiv and center the image within. However float: left is still breaking it. I am hoping there is a way to remove the float so each div does go left but the div inside centers correctly not breaking my formatting. <style type="text/css"> .wraptocenter { display: table-cell; text-align: center; vertical-align: middle; width: 200px; height: 200px; background: blue; } .wraptocenter * { vertical-align: middle; } /*\*//*/ .wraptocenter { display: block; } .wraptocenter span { display: inline-block; height: 100%; width: 1px; } /**/ div.c { background: red; overflow: hidden; min-width: 400px; max-width: 400px; } div.c div { float: left; } </style> <!--[if lt IE 8]><style> .wraptocenter span { display: inline-block; height: 100%; } </style><![endif]--> <div class="c"> <div> <div> <div class="wraptocenter"><span></span><img src="a.jpg" alt="/a.jpg"></div> <div class="wraptocenter"><span></span><img src="a.jpg" alt="/a.jpg"></div> <div class="wraptocenter"><span></span><img src="a.jpg" alt="/a.jpg"></div> </div></div></div>

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  • Declare Locally or Globally in Delphi?

    - by lkessler
    I have a procedure my program calls tens of thousands of times that uses a generic structure like this: procedure PrintIndiEntry(JumpID: string); type TPeopleIncluded = record IndiPtr: pointer; Relationship: string; end; var PeopleIncluded: TList<TPeopleIncluded>; PI: TPeopleIncluded; begin { PrintIndiEntry } PeopleIncluded := TList<TPeopleIncluded>.Create; { A loop here that determines a small number (up to 100) people to process } while ... do begin PI.IndiPtr := ...; PI.Relationship := ...; PeopleIncluded.Add(PI); end; DoSomeProcess(PeopleIncluded); PeopleIncluded.Clear; PeopleIncluded.Free; end { PrintIndiEntry } Alternatively, I can declare PeopleIncluded globally rather than locally as follows: unit process; interface type TPeopleIncluded = record IndiPtr: pointer; Relationship: string; end; var PeopleIncluded: TList<TPeopleIncluded>; PI: TPeopleIncluded; procedure PrintIndiEntry(JumpID: string); begin { PrintIndiEntry } { A loop here that determines a small number (up to 100) people to process } while ... do begin PI.IndiPtr := ...; PI.Relationship := ...; PeopleIncluded.Add(PI); end; DoSomeProcess(PeopleIncluded); PeopleIncluded.Clear; end { PrintIndiEntry } procedure InitializeProcessing; begin PeopleIncluded := TList<TPeopleIncluded>.Create; end; procedure FinalizeProcessing; begin PeopleIncluded.Free; end; My question is whether in this situation it is better to declare PeopleIncluded globally rather than locally. I know the theory is to define locally whenever possible, but I would like to know if there are any issues to worry about with regards to doing tens of thousands of of "create"s and "free"s? Making them global will do only one create and one free. What is the recommended method to use in this case? If the recommended method is to still define it locally, then I'm wondering if there are any situations where it is better to define globally when defining locally is still an option.

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  • What programming shortcuts do you end up regretting or backing out?

    - by bryanjonker
    I saw this question and it reminded me of AutoGenerateColumns in the old DataGrid. The few times I've used them, I ended up backing it out because I needed data formatting past the standard "spit out the Data Source columns." Likewise, with toggle, it sounds like it would save time, but then you end up needing to keep track of state or something else, and you rewrite the code accordingly. Are there things that you end up using thinking it will save you time, but end up backing out because it doesn't do what you need?

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  • How would someone implement mathematical formulae in java?

    - by Mohit Deshpande
    What I mean is like have to user input a string with multiple variables and get the value of those variable. Like a simple quadratic formula: x^2 + 5x + 10. Or in java: (Math.pow(x,2)) + (x * 5) + 10The user would then enter that and then the program would solve for x. I will be using the BeanShell Interpreter class to interpret the string as an equation. But how would I solve for x?

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