| 122 | } |
| 123 | |
| 124 | @Override |
| 125 | public ExpressionDataPoint[] next(final long timestamp) { |
| 126 | for (int i = 0; i < current_values.length; i++) { |
| 127 | if (current_values[i] == null) { |
| 128 | emitter_values[i].reset(timestamp, fill_policy.getValue()); |
| 129 | continue; |
| 130 | } |
| 131 | |
| 132 | if (current_values[i].timestamp() > timestamp) { |
| 133 | emitter_values[i].reset(timestamp, fill_policy.getValue()); |
| 134 | } else { |
| 135 | emitter_values[i].reset(current_values[i]); |
| 136 | if (!iterators[i].hasNext()) { |
| 137 | current_values[i] = null; |
| 138 | } else { |
| 139 | current_values[i] = iterators[i].next(); |
| 140 | } |
| 141 | } |
| 142 | } |
| 143 | return emitter_values; |
| 144 | } |
| 145 | |
| 146 | @Override |
| 147 | public long nextTimestamp() { |