apache hadoop hbase HTable Descriptor - Java Big Data

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Description

apache hadoop hbase HTable Descriptor

Demo Code

import java.io.IOException;

import org.apache.hadoop.conf.Configuration;

import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.MasterNotRunningException;
import org.apache.hadoop.hbase.client.HBaseAdmin;

public class ListTables {

    public static void main(String args[])
            throws MasterNotRunningException, IOException {

        // Instantiating a configuration class
        Configuration conf = HBaseConfiguration.create();

        // Instantiating HBaseAdmin class
        HBaseAdmin admin = new HBaseAdmin(conf);

        // Getting all the list of tables using HBaseAdmin object
        HTableDescriptor[] tableDescriptor = admin.listTables();

        // printing all the table names.
        for (int i = 0; i < tableDescriptor.length; i++) {
            System.out.println(tableDescriptor[i].getNameAsString());
        }/*from   w  w w. j a va2 s .c o  m*/
    }
}

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