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## org.biojava.bio.symbol
Class AbstractReversibleTranslationTable

    java.lang.Object
      org.biojava.bio.symbol.AbstractReversibleTranslationTable

All Implemented Interfaces:
  ReversibleTranslationTable, TranslationTable

Direct Known Subclasses:
  SimpleReversibleTranslationTable

    public abstract class AbstractReversibleTranslationTable

extends Object
implements ReversibleTranslationTable

an abstract class implementing basic functionality of a translation table that translates Symbols from one Alphabet to another.

Author:
  Matthew Pocock, Keith James (docs), Thomas Down, Greg Cox, Mark Schreiber, David Huen (refactoring)

Field Summary

Fields inherited from interface org.biojava.bio.symbol.TranslationTable
`ALT_YEAST_NUC, ASCID_MITO, BACTERIAL, BLEPH_MNUC, CHLORO_MITO, CILIATE_NUC, ECHIN_MITO, EUPL_NUC, FWORM_MITO, INVERT_MITO, MOLD_MITO, SCENE_MITO, TREMA_MITO, UNIVERSAL, VERT_MITO, YEAST_MITO`

Constructor Summary
`AbstractReversibleTranslationTable()`

Method Summary
`protected abstract Symbol` | `doTranslate(Symbol sym)` this method is expected to translate any symbol in the source alphabet.
`protected abstract Symbol` | `doUntranslate(Symbol sym)` this method is expected to reverse-translate any symbol in the source alphabet.
`abstract Alphabet` | `getSourceAlphabet()` The alphabet of Symbols that can be translated.
`abstract Alphabet` | `getTargetAlphabet()` The alphabet of Symbols that will be produced.
`Symbol` | `translate(Symbol sym)` Translate a single symbol from source alphabet to the target alphabet.
`Symbol` | `untranslate(Symbol sym)` Translate a single symbol from target alphabet to the source alphabet.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface org.biojava.bio.symbol.TranslationTable
`translate`

Constructor Detail

### AbstractReversibleTranslationTable

    public AbstractReversibleTranslationTable()

Method Detail

### getSourceAlphabet

    public abstract Alphabet getSourceAlphabet()

  Description copied from interface: `TranslationTable`
  The alphabet of Symbols that can be translated.

  Specified by:
    `getSourceAlphabet` in interface `TranslationTable`
  Returns:
    the source Alphabet

### getTargetAlphabet

    public abstract Alphabet getTargetAlphabet()

  Description copied from interface: `TranslationTable`
  The alphabet of Symbols that will be produced.

  Specified by:
    `getTargetAlphabet` in interface `TranslationTable`
  Returns:
    the target Alphabet

### doUntranslate

    protected abstract Symbol doUntranslate(Symbol sym)
                                     throws IllegalSymbolException

  this method is expected to reverse-translate any symbol in the source alphabet. Failure can be indicated by returning a null if, for example, your method only handles AtomicSymbols and you want BasisSymbols to be taken apart. If you are sure the symbol is illegal, you can throw the IllegalSymbolException immediately to bypass further processing.

  As an optimisation, if your method is capable of immediately translating an ambiguity Symbol, just return it and the alternate route of establishing the translation through doing an ambiguity lookup will be avoided.

  Throws:
    `IllegalSymbolException`

### untranslate

    public Symbol untranslate(Symbol sym)
                       throws IllegalSymbolException

  Description copied from interface: `ReversibleTranslationTable`
  Translate a single symbol from target alphabet to the source alphabet.

  Specified by:
    `untranslate` in interface `ReversibleTranslationTable`
  Parameters:
    `sym` - the Symbol to translate (member of target alphabet)
  Returns:
    the translated version of sym (member of source alphabet)
  Throws:
    `IllegalSymbolException` - if sym is not a member of the target alphabet

### doTranslate

    protected abstract Symbol doTranslate(Symbol sym)
                                   throws IllegalSymbolException

  this method is expected to translate any symbol in the source alphabet. Failure can be indicated by returning a null if, for example, your method only handles AtomicSymbols and you want BasisSymbols to be taken apart. If you are sure the symbol is illegal, you can throw the IllegalSymbolException immediately to bypass further processing.

  As an optimisation, if your method is capable of immediately translating an ambiguity Symbol, just return it and the alternate route of establishing the translation through doing an ambiguity lookup will be avoided.

  Throws:
    `IllegalSymbolException`

### translate

    public Symbol translate(Symbol sym)
                     throws IllegalSymbolException

  Description copied from interface: `TranslationTable`
  Translate a single symbol from source alphabet to the target alphabet.

  Specified by:
    `translate` in interface `TranslationTable`
  Parameters:
    `sym` - the Symbol to translate (member of source alphabet)
  Returns:
    the translated version of sym (member of target alphabet)
  Throws:
    `IllegalSymbolException` - if sym is not a member of the source alphabet

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