org.apache.arrow.vector.types.pojo.ArrowType.Time Java Examples

@Override
public String visit(Time type) {
  String name = "time";
  TimeUnit unit = type.getUnit();
  if (unit == TimeUnit.MILLISECOND) {
    return name;
  }
  return String.format("%s(%s)", name, unit);
}
 

public boolean isTemporal() {
  switch(type.getTypeID()){
    case Date:
    case Time:
    case Timestamp:
      return true;
    default:
      return false;
  }
}
 

public static ArrowType toArrowType(UserProtos.ResultColumnMetadata type) {
  String typeName = type.getDataType();
  switch (typeName) {
    case "NULL":
      return new Null();
    case "MAP":
      return new ArrowType.Map(false); //todo inner type?
    case "ARRAY":
      return new ArrowType.List(); //todo inner type?
    case "UNION":
      throw new UnsupportedOperationException("have not implemented unions");
      //return new Union(); //todo inner type?
    case "TINYINT":
      return new Int(8, true);
    case "SMALLINT":
      return new Int(16, true);
    case "INTEGER":
      return new Int(32, true);
    case "BIGINT":
      return new Int(64, true);
    case "FLOAT":
      return new FloatingPoint(FloatingPointPrecision.SINGLE);
    case "DOUBLE":
      return new FloatingPoint(FloatingPointPrecision.DOUBLE);
    case "CHARACTER VARYING":
      return new Utf8();
    case "BINARY VARYING":
      return new Binary();
    case "BOOLEAN":
      return new Bool();
    case "DECIMAL":
      return new Decimal(type.getPrecision(), type.getScale());
    case "DATE":
      return new Date(DateUnit.MILLISECOND);
    case "TIME":
      return new Time(TimeUnit.MICROSECOND, 64);
    case "TIMESTAMP":
      return new Timestamp(TimeUnit.MICROSECOND, "UTC");
    case "INTERVAL DAY TO SECOND":
      return new Interval(IntervalUnit.DAY_TIME);
    case "INTERVAL YEAR TO MONTH":
      return new Interval(IntervalUnit.YEAR_MONTH);
    case "BINARY":
      return new ArrowType.FixedSizeBinary(50);
    default:
      throw new IllegalStateException("unable to find arrow type for " + typeName);
  }
}
 

@Override
public T visit(Time type) {
  return visitGeneric(type);
}
 

@Override
public Integer visit(Time paramTime) {
  return 8; // hh-mm-ss
}
 

@Override
public String visit(Time paramTime) {
  return "TIME";
}