# Hierarchy For Package adql.query

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - adql.query.ADQLList<T> (implements adql.query.ADQLObject, java.lang.Iterable<T>)
    - adql.query.ClauseADQL<T>
      - adql.query.ClauseConstraints
      - adql.query.ClauseSelect
  - adql.query.ADQLList.ADQLListIterator (implements adql.query.ADQLIterator)
  - adql.query.ADQLQuery (implements adql.query.ADQLObject)
  - adql.query.ColumnReference (implements adql.query.ADQLObject)
    - adql.query.ADQLOrder
  - adql.query.NullADQLIterator (implements adql.query.ADQLIterator)
  - adql.query.SelectItem (implements adql.query.ADQLObject)
    - adql.query.SelectAllColumns
  - adql.query.TextPosition

## Interface Hierarchy

- adql.query.ADQLObject
- java.util.Iterator<E>
  - adql.query.ADQLIterator

## Enum Hierarchy

- java.lang.Object
  - java.lang.Enum<E> (implements java.lang.Comparable<T>, java.io.Serializable)
    - adql.query.IdentifierField