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21 package org.apache.hadoop.hbase.hbql.statement;
22
23 import org.apache.hadoop.hbase.hbql.client.ExecutionResults;
24 import org.apache.hadoop.hbase.hbql.client.HBqlException;
25 import org.apache.hadoop.hbase.hbql.client.HMapping;
26 import org.apache.hadoop.hbase.hbql.impl.HConnectionImpl;
27
28 public class ShowMappingsStatement extends GenericStatement implements ConnectionStatement {
29
30 public ShowMappingsStatement() {
31 super(null);
32 }
33
34 protected ExecutionResults execute(final HConnectionImpl conn) throws HBqlException {
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36 final ExecutionResults retval = new ExecutionResults();
37 retval.out.println("Mappings: ");
38 for (final HMapping mapping : conn.getAllMappings())
39 retval.out.println("\t" + mapping.getMappingName() + " mapped to table " + mapping.getTableName());
40
41 retval.out.flush();
42 return retval;
43 }
44
45 public static String usage() {
46 return "SHOW MAPPINGS";
47 }
48 }