be/src/exec/singular-row-src-node.h

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#ifndef IMPALA_EXEC_SINGULAR_ROW_SRC_NODE_H_
#define IMPALA_EXEC_SINGULAR_ROW_SRC_NODE_H_

#include "exec/exec-node.h"

namespace impala {

/// Exec node that returns a single row from its containing Subplan node.
/// Does not have any children.
class SingularRowSrcNode : public ExecNode {
 public:
  SingularRowSrcNode(ObjectPool* pool, const TPlanNode& tnode,
      const DescriptorTbl& descs);
  virtual Status GetNext(RuntimeState* state, RowBatch* row_batch, bool* eos);
};

}

#endif