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Data binding with Java

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What is data binding Java?

Data binding is the process that couples two data sources together and synchronizes them. With data binding, a change to an element in a data set automatically updates in the bound data set.

How is data binding done in Java?

In Java, data binding is the connection between class and method, or class and field. A Tree is nice but it's not bound to anything until you create an instance of a Tree and attach a grow() method. Java handles binding either statically or dynamically. Static binding is done at compile time.

What is data binding with example?

Data binding can also mean that if an outer representation of the data in an element changes, then the underlying data can be automatically updated to reflect the change. For example, if the user edits the value in a TextBox element, the underlying data value is automatically updated to reflect that change.

What is data binding in Android Java?

The Data Binding Library is a support library that allows you to bind UI components in your layouts to data sources in your app using a declarative format rather than programmatically. Layouts are often defined in activities with code that calls UI framework methods.

I have an application with several windows/views that show the same object. For example I have a user object with name and location Strings and an ImageIcon for their picture.

Then on my windows I will use the details of that user object like this -

  1. I create a JPanel.
  2. I add JLabels to it (nameLabel, locationLabel, imageLabel)
  3. I call setText() (or setIcon for imageLabel) for each of these labels to set their text/image to the user object data.

I have to repeatedly do this for

  1. each window where the user object's data is shown
  2. every time the user object is changed I have to call setText() on the labels again.

In C# when I was using databinding so when I updated an object it was automatically reflected in the GUI element that was databound to it. Does something similar exist with Java?

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