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21 package org.apache.hadoop.hbase.hbql.impl;
22
23 import org.apache.hadoop.hbase.client.Result;
24 import org.apache.hadoop.hbase.hbql.client.HBqlException;
25 import org.apache.hadoop.hbase.hbql.statement.select.RowRequest;
26 import org.apache.hadoop.hbase.hbql.util.NullIterator;
27
28 import java.util.Iterator;
29 import java.util.List;
30
31 public class NonExecutorResultSet<T> extends HResultSetImpl<T, Object> {
32
33 private final Iterator<RowRequest> rowRequestIterator;
34
35 NonExecutorResultSet(final Query<T> query) throws HBqlException {
36 super(query, null);
37 this.rowRequestIterator = getQuery().getRowRequestList().iterator();
38 }
39
40 private Iterator<RowRequest> getRowRequestIterator() {
41 return this.rowRequestIterator;
42 }
43
44 protected void submitWork(final List<RowRequest> rowRequestList) {
45
46 }
47
48 public Iterator<T> iterator() {
49
50 try {
51 return new ResultSetIterator<T, Object>(this) {
52
53 protected boolean moreResultsPending() {
54 return getRowRequestIterator().hasNext();
55 }
56
57 protected Iterator<Result> getNextResultIterator() throws HBqlException {
58 final RowRequest rowRequest = getRowRequestIterator().next();
59 setCurrentResultScanner(rowRequest.getResultScanner(getMappingContext().getMapping(),
60 getWithArgs(),
61 getTableWrapper().getHTable()));
62 return getCurrentResultScanner().iterator();
63 }
64 };
65 }
66 catch (HBqlException e) {
67 e.printStackTrace();
68 getQuery().callOnException(e);
69 return new NullIterator<T>();
70 }
71 }
72 }
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74