How to inject properties of one class into an object of another class?

Asked Oct 18 '16 at 10:20

Active Oct 18 '16 at 10:20

Viewed 126 times

I want to find the size of files using the length() function of java.io.File class. But the file I have in my code is of a different package (com.xyz.archway.objectmodel.host.filesystem.File) and does not have any function for determining the file size. How do I inject properties of java.io.File into an object of com.xyz.archway.objectmodel.host.filesystem.File?

import java.io.File;
@EJB
private GetFilesForApplicationCommandBean getfilesforapp;
.
.
.
.
Set<com.xyz.archway.objectmodel.host.filesystem.File> setfile =  getfilesforapp.getFiles(tempapp, true);
for(com.xyz.archway.objectmodel.host.filesystem.File file : setfile)
    {
        size = size + file.length(); ----->error`       
    }
 return size;

asked Oct 18 '16 at 10:20

Saurabh Devulapally

does this other file have a getter for the file name (including its path)? – Timothy Truckle Oct 18 '16 at 10:24
Why do u want to inject ? your File class can extend `java.io.File` – Rahman Oct 18 '16 at 10:26
Agreed with @Rehman, just extend java.io.File – Amnor Oct 18 '16 at 11:02
Related: [When to use property injection](https://stackoverflow.com/a/39853478/264697). – Steven Oct 18 '16 at 11:04
@TimothyTruckle: It has a getter for just the name. There's another for the filesystem on which it is present but nothing with name and path together. – Saurabh Devulapally Oct 18 '16 at 11:16
@Rehman: This class already extends another class so it can't extend java.io.File. – Saurabh Devulapally Oct 18 '16 at 11:25
hopefully the name getter returns the complete path. in that case you can write: `size = new java.io.File(file).length();` – Timothy Truckle Oct 18 '16 at 11:28

How to inject properties of one class into an object of another class?

0 Answers0