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java Programming Glossary: dbHow to get the insert ID in JDBC? http://stackoverflow.com/questions/1915166/how-to-get-the-insert-id-in-jdbc to get the insert ID in JDBC I want to INSERT a record in a database which is Microsoft.. a database which is Microsoft SQL Server in my case using JDBC in Java. At the same time I want to obtain the insert ID. How.. to obtain the insert ID. How can I achieve this using JDBC API java jdbc insert id share improve this question If..
Why JSF calls getters multiple times http://stackoverflow.com/questions/2090033/why-jsf-calls-getters-multiple-times However the story changes when you're performing expensive DB business logic in the getter method for some reason. This would.. Javabeans specification . They should not do any expensive DB business logic at all. For that the bean's post constructor.. return someProperty This way the expensive DB business logic won't unnecessarily be executed on every single..
How to retrieve and display images from a database in a JSP page? http://stackoverflow.com/questions/2340406/how-to-retrieve-and-display-images-from-a-database-in-a-jsp-page data and are to be obtained as an InputStream from the DB the JDBC API offers the ResultSet#getBinaryStream for this... and are to be obtained as an InputStream from the DB the JDBC API offers the ResultSet#getBinaryStream for this. In the Servlet.. statement null ResultSet resultSet null try Query DB. connection database.getConnection statement connection.prepareStatement..
http://stackoverflow.com/questions/2658922/xss-prevention-in-java that the data unnecessarily get double escaped or that the DB stored data becomes unportable e.g. when exporting data to CSV.. taken this into account. If you're working with raw JDBC you need to ensure that you set user controlled input using..
How to avoid Java Code in JSP-Files? http://stackoverflow.com/questions/3177733/how-to-avoid-java-code-in-jsp-files failed e This way dealing with exceptions is easier. The DB is not accessed in the midst of JSP rendering but far before.. have the possibility to change the response whenever the DB access throws an exception. In the above example the default..
Recommended JSF 2.0 CRUD frameworks [closed] http://stackoverflow.com/questions/3180400/recommended-jsf-2-0-crud-frameworks item Actually the DAO should already have set the ID from DB. This is just for demo. item.setId list.isEmpty 1 list.get list.size..
Hibernate hbm2ddl.auto possible values and what they do? http://stackoverflow.com/questions/438146/hibernate-hbm2ddl-auto-possible-values-and-what-they-do the alternative These are changes that could happen over DB New tables new columns in old tables columns deleted data type..
http://stackoverflow.com/questions/5003142/jsp-using-mvc-and-jdbc using MVC and JDBC I'm implementing MVC using JSP and JDBC. I have imported a.. using MVC and JDBC I'm implementing MVC using JSP and JDBC. I have imported a class file to my JSP file and I want to.. code and the servlet class should not contain any line of JDBC code. Assuming that you want to show a list of products in..
Connection pooling options with JDBC: DBCP vs C3P0 [closed] http://stackoverflow.com/questions/520585/connection-pooling-options-with-jdbc-dbcp-vs-c3p0 pooling options with JDBC DBCP vs C3P0 closed What is the best connection pooling library.. pooling options with JDBC DBCP vs C3P0 closed What is the best connection pooling library.. is the best connection pooling library available for Java JDBC I'm considering the 2 main candidates free open source Apache..
http://stackoverflow.com/questions/5418292/jsf-2-0-file-upload byte bytes uploadedFile.getBytes Now you can save bytes in DB and also content type FacesContext.getCurrentInstance .addMessage..
Why does JSF need to save the state of UI components on the server side? http://stackoverflow.com/questions/5474316/why-does-jsf-need-to-save-the-state-of-ui-components-on-the-server-side more focused on the real objects managed beans and or even DB entities in session or application scope. I've seen lot of codes..
CSRF, XSS and SQL Injection attack prevention in JSF http://stackoverflow.com/questions/7722159/csrf-xss-and-sql-injection-attack-prevention-in-jsf JSF I have a web application built on JSF with MySQL as DB. I have already implemented the code to prevent CSRF in my application... I really need to implement code to prevent XSS attacks For DB we are using prepared statements and stored procedures in all.. are using prepared statements and stored procedures in all DB interactions. Is there anything else needs to be handled for..
Facebook offline access step-by-step http://stackoverflow.com/questions/1059640/facebook-offline-access-step-by-step developers apps.php# developers createapp.php and set sandbox developer mode on @ Advanced Settings Sandbox Mode Enable.. and set sandbox developer mode on @ Advanced Settings Sandbox Mode Enable Lets only the developers of your application see.. 'code' echo token 1 store this the access token in the db for the user as logged in on your site and don't abuse their..
Program not accessing method paintComponent() of extended JPanel class http://stackoverflow.com/questions/12226198/program-not-accessing-method-paintcomponent-of-extended-jpanel-class cm.createCompatibleSampleModel width height DataBufferByte db new DataBufferByte buffer width height WritableRaster raster.. WritableRaster raster Raster.createWritableRaster sm db null BufferedImage result new BufferedImage cm raster false..
How to get UTF-8 working in java webapps? http://stackoverflow.com/questions/138948/how-to-get-utf-8-working-in-java-webapps 'text html charset UTF 8' ... JDBC connection When using a db it has to be defined that the connection uses UTF 8 encoding... the JDBC connection is defiend as follows Resource name jdbc AppDB auth Container type javax.sql.DataSource maxActive 20.. 10000 username foo password bar driverClassName com.mysql.jdbc.Driver url jdbc mysql localhost 3306 ID_development useEncoding..
How to pretty print XML from Java? http://stackoverflow.com/questions/139076/how-to-pretty-print-xml-from-java Document parseXmlFile String in try DocumentBuilderFactory dbf DocumentBuilderFactory.newInstance DocumentBuilder db dbf.newDocumentBuilder.. dbf DocumentBuilderFactory.newInstance DocumentBuilder db dbf.newDocumentBuilder InputSource is new InputSource new StringReader.. dbf DocumentBuilderFactory.newInstance DocumentBuilder db dbf.newDocumentBuilder InputSource is new InputSource new StringReader..
Permission to write to the SD card http://stackoverflow.com/questions/2121833/permission-to-write-to-the-sd-card In this perticular instance I am trying to copy the db file to the root directory on the SD card but its throwing an..
What are the pros and cons of the assorted Java web frameworks? [closed] http://stackoverflow.com/questions/24596/what-are-the-pros-and-cons-of-the-assorted-java-web-frameworks templating. That goes doubly so if you are using your own db code instead of Hibernate or some other framework I was never..
Database not copying from assets http://stackoverflow.com/questions/5945196/database-not-copying-from-assets the database already exists Method declared later boolean dbExist checkDataBase if dbExist do nothing database already exists.. Method declared later boolean dbExist checkDataBase if dbExist do nothing database already exists else By calling this.. void copyDataBase throws IOException Open your local db as the input stream InputStream myInput myContext.getAssets..
How I save and retrieve an image on my server in a java webapp http://stackoverflow.com/questions/8516387/how-i-save-and-retrieve-an-image-on-my-server-in-a-java-webapp a mySQL Db but I don't want to store the image in the db I'd rather store it somewhere in the server and then just save.. the server and then just save the path as a string in the db. I was told this is the best way but I can't seem to find an..
What are static factory methods in Java? http://stackoverflow.com/questions/929021/what-are-static-factory-methods-in-java else if availableConnections.size 0 DbConnection dbc availableConnections.iterator .next availableConnections.remove.. .next availableConnections.remove dbc return dbc else throw new NoDbConnections public static void.. .next availableConnections.remove dbc return dbc else throw new NoDbConnections public static void returnDbConnection..
Is it safe to use a static java.sql.Connection instance in a multithreaded system? http://stackoverflow.com/questions/9428573/is-it-safe-to-use-a-static-java-sql-connection-instance-in-a-multithreaded-syste that execute queries such as search for a user in the db public static ResultSet searchUser String user String pass throws.. call the searchUser method java multithreading servlets jdbc connection share improve this question is my use in static..
Can Java Sound be used to control the system volume? http://stackoverflow.com/questions/14301618/can-java-sound-be-used-to-control-the-system-volume A Setting volume of Master Gain with current value 0.0 dB range 80.0 13.9794 to 0.0 Setting volume of Master Gain with.. 0.0 Setting volume of Master Gain with current value 0.0 dB range 80.0 13.9794 to 0.41 Setting volume of Master Gain with.. 0.41 Setting volume of Master Gain with current value 0.0 dB range 80.0 13.9794 to 0.68 ... Swap FloatControl.Type.MASTER_GAIN..
http://stackoverflow.com/questions/471112/java-sound-fade-out and 1 value value 0.0 0.0001 value 1.0 1.0 value try float dB float Math.log value Math.log 10.0 20.0 gainControl.setValue.. Math.log value Math.log 10.0 20.0 gainControl.setValue dB catch Exception ex ex.printStackTrace Fade the volume to a..
http://stackoverflow.com/questions/5800649/detect-silence-when-recording when recording operation is started in Java Calculate the dB or RMS value for a group of sound frames and decide at what..
Signal processing library in Java? http://stackoverflow.com/questions/636686/signal-processing-library-in-java PSD is usually just the magnitude of the FFT displayed in dB. Start by copying the C code from Numerical Recipes section.. using firpmord and firpm from Matlab. Shoot for 30 to 50 dB attenuation in the stopband and 3 dB ripple in the passband...
Audio spectrum analysis using FFT algorithm in Java http://stackoverflow.com/questions/6627288/audio-spectrum-analysis-using-fft-algorithm-in-java 2 FFT output bins re re im im convert squared magnitude to dB scale 10 log10 squared_magnitude share improve this answer..
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