# Hierarchy For Package net.sf.saxon.expr.sort

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - net.sf.saxon.expr.sort.AlphanumericCollator (implements net.sf.saxon.lib.StringCollator)
  - net.sf.saxon.expr.sort.AtomicSortComparer (implements net.sf.saxon.expr.sort.AtomicComparer)
  - net.sf.saxon.expr.sort.CalendarValueComparer (implements net.sf.saxon.expr.sort.AtomicComparer)
  - net.sf.saxon.expr.sort.CaseFirstCollator (implements net.sf.saxon.lib.StringCollator)
  - net.sf.saxon.expr.sort.CodepointCollatingComparer (implements net.sf.saxon.expr.sort.AtomicComparer)
  - net.sf.saxon.expr.sort.CodepointCollator (implements net.sf.saxon.lib.StringCollator, net.sf.saxon.lib.SubstringMatcher)
  - net.sf.saxon.expr.sort.CollatingAtomicComparer (implements net.sf.saxon.expr.sort.AtomicComparer)
  - net.sf.saxon.expr.sort.CollationMatchKey (implements net.sf.saxon.expr.sort.AtomicMatchKey, java.lang.Comparable<T>)
  - net.sf.saxon.expr.sort.ComparableAtomicValueComparer (implements net.sf.saxon.expr.sort.AtomicComparer)
    - net.sf.saxon.expr.sort.DecimalSortComparer
  - net.sf.saxon.expr.sort.DescendingComparer (implements net.sf.saxon.expr.sort.AtomicComparer)
  - net.sf.saxon.expr.sort.DocumentOrderIterator (implements net.sf.saxon.om.SequenceIterator)
  - net.sf.saxon.expr.sort.DoubleSortComparer (implements net.sf.saxon.expr.sort.AtomicComparer)
  - net.sf.saxon.expr.sort.EmptyGreatestComparer (implements net.sf.saxon.expr.sort.AtomicComparer)
  - net.sf.saxon.expr.sort.EmptyIntIterator (implements net.sf.saxon.z.IntIterator)
  - net.sf.saxon.expr.sort.EqualityComparer (implements net.sf.saxon.expr.sort.AtomicComparer)
  - net.sf.saxon.expr.Expression (implements net.sf.saxon.expr.ExportAgent, net.sf.saxon.om.IdentityComparable, net.sf.saxon.expr.Locatable, net.sf.saxon.trace.Traceable)
    - net.sf.saxon.expr.sort.ConditionalSorter
    - net.sf.saxon.expr.instruct.Instruction (implements net.sf.saxon.expr.instruct.TailCallReturner)
      - net.sf.saxon.expr.sort.MergeInstr
    - net.sf.saxon.expr.PseudoExpression
      - net.sf.saxon.expr.sort.SortKeyDefinition
      - net.sf.saxon.expr.sort.SortKeyDefinitionList (implements java.lang.Iterable<T>)
    - net.sf.saxon.expr.sort.SortExpression (implements net.sf.saxon.expr.sort.SortKeyEvaluator)
    - net.sf.saxon.expr.UnaryExpression
      - net.sf.saxon.expr.sort.DocumentSorter
  - net.sf.saxon.expr.sort.GenericAtomicComparer (implements net.sf.saxon.expr.sort.AtomicComparer)
  - net.sf.saxon.expr.sort.GlobalOrderComparer (implements net.sf.saxon.expr.sort.ItemOrderComparer)
  - net.sf.saxon.expr.sort.GroupAdjacentIterator (implements net.sf.saxon.expr.sort.GroupIterator, net.sf.saxon.expr.LastPositionFinder, net.sf.saxon.tree.iter.LookaheadIterator)
  - net.sf.saxon.expr.sort.GroupByIterator (implements net.sf.saxon.expr.sort.GroupIterator, net.sf.saxon.expr.LastPositionFinder, net.sf.saxon.tree.iter.LookaheadIterator)
  - net.sf.saxon.expr.sort.GroupMatchingIterator (implements net.sf.saxon.expr.sort.GroupIterator, net.sf.saxon.expr.LastPositionFinder, net.sf.saxon.tree.iter.LookaheadIterator)
    - net.sf.saxon.expr.sort.GroupEndingIterator (implements net.sf.saxon.expr.sort.GroupIterator, net.sf.saxon.tree.iter.LookaheadIterator)
    - net.sf.saxon.expr.sort.GroupStartingIterator (implements net.sf.saxon.expr.sort.GroupIterator, net.sf.saxon.tree.iter.LookaheadIterator)
  - net.sf.saxon.expr.sort.HTML5CaseBlindCollator (implements net.sf.saxon.lib.StringCollator, net.sf.saxon.lib.SubstringMatcher)
  - net.sf.saxon.expr.sort.ItemWithMergeKeys
  - net.sf.saxon.expr.sort.LocalOrderComparer (implements net.sf.saxon.expr.sort.ItemOrderComparer)
  - net.sf.saxon.expr.sort.LRUCache<K,​V>
  - net.sf.saxon.tree.iter.ManualIterator (implements net.sf.saxon.om.FocusIterator, net.sf.saxon.tree.iter.GroundedIterator, net.sf.saxon.expr.LastPositionFinder, net.sf.saxon.tree.iter.LookaheadIterator, net.sf.saxon.tree.iter.ReversibleIterator, net.sf.saxon.tree.iter.UnfailingIterator)
    - com.saxonica.ee.stream.ManualGroupIterator (implements net.sf.saxon.expr.sort.GroupIterator)
      - net.sf.saxon.expr.sort.GroupByIterator.ManualGroupByIterator
      - net.sf.saxon.expr.sort.MergeGroupingIterator.ManualMergeGroupingIterator
  - net.sf.saxon.expr.sort.MergeGroupingIterator (implements net.sf.saxon.expr.sort.GroupIterator, net.sf.saxon.expr.LastPositionFinder, net.sf.saxon.tree.iter.LookaheadIterator)
  - net.sf.saxon.expr.sort.MergeInstr.MergeKeyMappingFunction (implements net.sf.saxon.expr.ContextMappingFunction)
  - net.sf.saxon.expr.sort.MergeInstr.MergeSource
  - net.sf.saxon.expr.sort.MergeIterator (implements net.sf.saxon.tree.iter.LookaheadIterator, net.sf.saxon.om.SequenceIterator)
  - net.sf.saxon.expr.sort.NumericComparer (implements net.sf.saxon.expr.sort.AtomicComparer)
    - net.sf.saxon.expr.sort.NumericComparer11
  - net.sf.saxon.expr.sort.ObjectToBeSorted<T>
    - net.sf.saxon.expr.sort.GroupToBeSorted
    - net.sf.saxon.expr.sort.ItemToBeSorted
  - net.sf.saxon.expr.sort.SimpleCollation (implements net.sf.saxon.lib.StringCollator)
    - net.sf.saxon.expr.sort.RuleBasedSubstringMatcher (implements net.sf.saxon.lib.SubstringMatcher)
  - net.sf.saxon.expr.sort.SortedIterator (implements net.sf.saxon.expr.LastPositionFinder, net.sf.saxon.tree.iter.LookaheadIterator, net.sf.saxon.om.SequenceIterator)
    - net.sf.saxon.expr.sort.SortedGroupIterator (implements net.sf.saxon.expr.sort.GroupIterator)
  - net.sf.saxon.expr.sort.TextComparer (implements net.sf.saxon.expr.sort.AtomicComparer)
  - java.lang.Throwable (implements java.io.Serializable)
    - java.lang.Exception
      - java.lang.RuntimeException
        - java.lang.ClassCastException
          - net.sf.saxon.expr.sort.ComparisonException
  - net.sf.saxon.expr.sort.UcaCollatorUsingJava (implements net.sf.saxon.lib.SubstringMatcher)
  - net.sf.saxon.expr.sort.UntypedNumericComparer (implements net.sf.saxon.expr.sort.AtomicComparer)

## Interface Hierarchy

- net.sf.saxon.expr.sort.AtomicComparer
- net.sf.saxon.expr.sort.AtomicMatchKey
- java.lang.AutoCloseable
  - java.io.Closeable
    - net.sf.saxon.om.SequenceIterator
      - net.sf.saxon.expr.sort.GroupIterator
- java.util.Comparator<T>
  - net.sf.saxon.expr.sort.ItemOrderComparer
- net.sf.saxon.expr.sort.SortKeyEvaluator