If you’ve a good experience in the Java Persistence API, you can configure the JPA to generates the required schema. These are not part of the JPA implementation prior to the JPA 2.1 specification. These are considered as the extensions for the JPA provider. However, this has been standardized from the JPA 2.1 release. JPA …
Java EE
JSTL Function fn:trim()
Function <fn: trim ()> is used to remove leading and trailing white spaces, tabs from the start and end of the string. The function returns the string after removing white spaces from both points of the input string. Syntax Of <fn: trim ()> Tag Example Steps for Execution Save the file as trimExample.jsp in eclipse …
JSTL Function fn:toUpperCase()
The <fn: toUpperCase> is function of JSTL which is used to returns all the characters of string to upper case. It converts input string to an upper case string. The string which needs to be changed to upper case is passed as argument and converted string is being returned by the function. Syntax Of <fn: …
JSTL Function fn:toLowerCase()
The <fn: toLowerCase> is function of JSTL which is used to returns all the characters of string to lower case. It converts input string to a lower case string. The string which needs to be changed to lower case is passed as argument and converted string is being returned by the function. Syntax Of <fn: …
JSTL Function fn:length()
The function <fn:length()> is the string function. This function used to find out the length of the entered string. This function displays the number of characters entered in the specified string. Syntax of Function <fn:length()> Example of Function <fn:length()> Steps for Execution Save this file as example.jsp in your eclipse IDE. Now select this jsp …
JPA Entity Primary Key Using @Id and @IdClass
At this tutorial we’ve explained the concept of entity identification. Entity identification is the process in which the Java Persistence Implementation identify an entity uniquely from set of entities that belong to the same type on a memory level or a database level. Each entity that located in the persistence context must has a unique …
JPA Annotations – @Temporal
@Temporal annotation in JPA implementation can only be used with the fields and property get methods. Also, this annotation can be specified for the persistent fields or properties java.util.Data or java.util.Calendar. This annotation is available since the release of JPA 1.0. @Temporal solves the one of the major issue of converting the date and time …
JSTL Function fn:startsWith()
The function <fn:startsWith()> is a string function of JSTL. This function is used to check the input string starts with the given specified character or prefix. It returns true if it contains specified character otherwise returns false. Syntax of JSTL Function <fn:startsWith()> Example of JSTL Function <fn:startsWith()> Details of the Code ${fn:startsWith(“JavaBeat”,’J’)} tag is used …