本文整理汇总了Java中org.apache.tajo.engine.planner.logical.JoinNode.setTargets方法的典型用法代码示例。如果您正苦于以下问题:Java JoinNode.setTargets方法的具体用法?Java JoinNode.setTargets怎么用?Java JoinNode.setTargets使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.tajo.engine.planner.logical.JoinNode
的用法示例。
在下文中一共展示了JoinNode.setTargets方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: BNLJoinExec
import org.apache.tajo.engine.planner.logical.JoinNode; //导入方法依赖的package包/类
public BNLJoinExec(final TaskAttemptContext context, final JoinNode plan,
final PhysicalExec leftExec, PhysicalExec rightExec) {
super(context, plan.getInSchema(), plan.getOutSchema(), leftExec, rightExec);
this.plan = plan;
this.joinQual = plan.getJoinQual();
if (joinQual != null) { // if join type is not 'cross join'
hasJoinQual = true;
} else {
hasJoinQual = false;
}
this.leftTupleSlots = new ArrayList<Tuple>(TUPLE_SLOT_SIZE);
this.rightTupleSlots = new ArrayList<Tuple>(TUPLE_SLOT_SIZE);
this.leftIterator = leftTupleSlots.iterator();
this.rightIterator = rightTupleSlots.iterator();
this.rightEnd = false;
this.leftEnd = false;
// for projection
if (!plan.hasTargets()) {
plan.setTargets(PlannerUtil.schemaToTargets(outSchema));
}
projector = new Projector(inSchema, outSchema, plan.getTargets());
// for join
frameTuple = new FrameTuple();
outputTuple = new VTuple(outSchema.size());
}