Tag Archives: hadoop

Basic HBase Java Classes and Methods – Part 8: Disable and Delete a Table

In order to delete a table in HBase it must be disabled first.  This forces any data in memory to be flushed to disk.  Because this is an admin operation, we must create an Admin object, similar to how we … Continue reading

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Basic HBase Java Classes and Methods – Part 7: Delete from a Table

Deleting data from an HBase table is very similar in overall structure to many of our previous operations.  First we have our general skeleton code.  As before we use static variable declarations to make the code look a lot nicer. … Continue reading

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Basic HBase Java Classes and Methods – Part 6: Scan a Table

In HBase a Scan is similar to a Select in SQL.  Again we return to skeleton code which is very similar to what we have seen before.  I will put comments into the three areas we will be addressing:

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Basic HBase Java Classes and Methods – Part 5: Getting Data from a Table

Now that we have seen how to Create a table and Put data into a table, we will explore how to read data out of a table. The main skeleton code is the the same as before, but this time … Continue reading

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Basic HBase Java Classes and Methods – Part 4: Putting Data into a Table

To put data into a table in HBase, we will create a Class very similar in structure to our last Class in Part 3.  Instead of using an Admin object, which is used to create a table or delete it, … Continue reading

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