Tag Archives: JPA

Spoken on Google App Engine at a conference in UET

Spoken on Google App Engine at a conference in UET

Posted on 19. Dec, 2009 by Tahir Akram.

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Today I had delivered a workshop on Developing Java Web Applications In Google App Engine. This workshop was the part of events of 3rd International Conference on Open Source Systems and Technologies. It was organized by Al-Khawarizmi Institute of Computer Science , University of Engineering and Technology, Lahore.
I have presented following slides there. Also coded [...]

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Tutorial: JPA on Google App Engine

Tutorial: JPA on Google App Engine

Posted on 13. Dec, 2009 by Tahir Akram.

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This project will create and delete an entity record. I have chosen JPA for datastore in app engine. You can also look JDO for this purpose. But my choice to go for JPA is due to Sun standardization on it.
I am using App Engine SDK version 1.2.18
Project name: engineplay
URL: http://engineplay.appspot.com
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Project structure:
UserPrefs.java: The entity class

package com.engineplay.datastore.pojos;
import [...]

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L2xpPjxsaT48c3Ryb25nPndvb190aGVtZW5hbWU8L3N0cm9uZz4gLSBCdXN5IEJlZTwvbGk+PGxpPjxzdHJvbmc+d29vX3RodW1iX2hlaWdodDwvc3Ryb25nPiAtIDg4PC9saT48bGk+PHN0cm9uZz53b29fdGh1bWJfd2lkdGg8L3N0cm9uZz4gLSA4ODwvbGk+PGxpPjxzdHJvbmc+d29vX3R3aXR0ZXI8L3N0cm9uZz4gLSB0YWhpcmFrcmFtPC9saT48bGk+PHN0cm9uZz53b29fdmlkZW9fY2F0ZWdvcnk8L3N0cm9uZz4gLSBTZWxlY3QgYSBjYXRlZ29yeTo8L2xpPjwvdWw+