 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
Java Forum / General / October 2007JSP Questions
Hey guys, I am working on a JSP website on JRE1.4. I am trying to find some good packages to use to speed up development because the project currently uses no framework whatsoever. Would anyone mind recommending some good packages? So far Struts looks worthwhile. Since I am from a C# background: JRE1.4 can't support Nullable<T>, so what is the best practice for representing null value types? Does JRE1.4 have an alternative to C#'s using statement? Thanks in advance, James > I am working on a JSP website on JRE1.4. I am trying to find some > good packages to use to speed up development because the project > currently uses no framework whatsoever. Would anyone mind > recommending some good packages? So far Struts looks worthwhile. JSF will probably look more ASP.NET like to you. > Since I am from a C# background: > > JRE1.4 can't support Nullable<T>, so what is the best practice for > representing null value types? Use the wrapper classes Integer, Double etc.. > Does JRE1.4 have an alternative to C#'s using statement? No. You will need to use try finally. Arne jwren wrote: >> I am working on a JSP website on JRE1.4. I am trying to find some >> good packages to use to speed up development because the project >> currently uses no framework whatsoever. Would anyone mind >> recommending some good packages? So far Struts looks worthwhile. > JSF will probably look more ASP.NET like to you. And is much more powerful and flexible. jwren wrote: >> Since I am from a C# background: >> >> JRE1.4 can't support Nullable<T>, so what is the best practice for >> representing null value types? > Use the wrapper classes Integer, Double etc.. There is no direct Java equivalent to C#'s Nullable<T>. What are you trying to do with it in Java? jwren wrote: >> Does JRE1.4 have an alternative to C#'s using statement? > No. > > You will need to use try finally. And should use Java 6, the current version. Java 1.4 is in End-of-Life, it lacks generics and other useful features, and it is slower than later versions. Particularly coming from C#, you should find Java 5 or 6 much more comfortable than the obsolescent version. P.S., Arne is known to be very knowledgeable about both C# and Java.  SignatureLew Hi Lew, Is 1.6 backward compatible with 1.4? > >> JRE1.4 can't support Nullable<T>, so what is the best practice for > >> representing null value types? [quoted text clipped - 4 lines] > > What are you trying to do with it in Java? I need it for database access. Using the wrappers as Arne suggested sounds like a good enough solution. Thanks, James > Hi Lew, > [quoted text clipped - 9 lines] > I need it for database access. Using the wrappers as Arne suggested > sounds like a good enough solution. FYI, for DATETIME in JDBC there is the java.sql.Date type. The java.sql package has classes and interfaces to support DB access, and they impose certain idioms on things like setting PreparedStatement <http://java.sun.com/javase/6/docs/api/java/sql/PreparedStatement.html> positional paramaters or retrieving columns from a ResultSet <http://java.sun.com/javase/6/docs/api/java/sql/ResultSet.html> or its RowSet subtype <http://java.sun.com/javase/6/docs/api/javax/sql/RowSet.html> . They indicate what Java types canonically map to which SQL types. The Java Persistence API (JPA) also resolves certain fundamental matters of object-relational mapping. SignatureLew > FYI, for DATETIME in JDBC there is the java.sql.Date type. Or java.sql.Timestamp if the tim eportion is needed. > The java.sql package has classes and interfaces to support DB access, > and they impose certain idioms on things like setting PreparedStatement > <http://java.sun.com/javase/6/docs/api/java/sql/PreparedStatement.html> > positional paramaters or retrieving columns from a ResultSet It is very similar to .NET Parameters. The biggest difference is that JDBC PreparedStatement is always positional, while in .NET it uses names for some provides and positions for other provides (a bit tricky, because it always allows names, but it really uses positions for the last category). > <http://java.sun.com/javase/6/docs/api/java/sql/ResultSet.html> Similar to .NET DataReader. > <http://java.sun.com/javase/6/docs/api/javax/sql/RowSet.html> Somewhat similar to .NET DataSet. Arne >> I am working on a JSP website on JRE1.4. I am trying to find some >> good packages to use to speed up development because the project >> currently uses no framework whatsoever. Would anyone mind >> recommending some good packages? So far Struts looks worthwhile. > >JSF will probably look more ASP.NET like to you. And there's a drag and drop GUI development tool with remote debugging for JSF. <http://www.netbeans.org/products/visualweb/> Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
|
Reply to this Message
|
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.