public class Fields
extends Object
implements Iterable<String>, Serializable

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`contains(String field)`	Returns true if this contains the specified name of the field.
`int`	`fieldIndex(String field)`	Returns the position of the specified field.
`String`	`get(int index)`
`org.apache.heron.api.tuple.Fields`	`getDelegate()`
`Iterator<String>`	`iterator()`
`List<Object>`	`select(Fields selector, List<Object> tuple)`
`int`	`size()`
`List<String>`	`toList()`
`String`	`toString()`

public Fields(org.apache.heron.api.tuple.Fields delegate)

public List<Object> select(Fields selector,
                           List<Object> tuple)

fieldIndex
```
public int fieldIndex(String field)
```
Returns the position of the specified field.

contains
```
public boolean contains(String field)
```
Returns true if this contains the specified name of the field.

public org.apache.heron.api.tuple.Fields getDelegate()

Constructor	Description
`Fields(String... fields)`
`Fields(List<String> fields)`
`Fields(org.apache.heron.api.tuple.Fields delegate)`

Class Fields