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## org.biojava.bio.seq.db
Class HashSequenceDB

    java.lang.Object
      org.biojava.utils.AbstractChangeable
          org.biojava.bio.seq.db.AbstractSequenceDB
              org.biojava.bio.seq.db.HashSequenceDB

All Implemented Interfaces:
  Serializable, SequenceDB, SequenceDBLite, Changeable

    public class HashSequenceDB

extends AbstractSequenceDB
implements SequenceDB, Serializable

An implementation of SequenceDB that uses an underlying HashMap to store the sequence objects.

Author:
  Matthew Pocock, Gerald Loeffler
See Also:
  Serialized Form

Field Summary

Fields inherited from interface org.biojava.bio.seq.db.SequenceDBLite
`SEQUENCES`

Constructor Summary
`HashSequenceDB()` Generate a HashSequenceDB object that will use byName to generate ids for sequences and have a null name.
`HashSequenceDB(IDMaker idMaker)` Generate a HashSequenceDB object that will use idMaker to generate ids for sequences and have a null name.
`HashSequenceDB(IDMaker idMaker, String name)` Generate a HashSequenceDB object that will use idMaker to generate ids for sequences and have the requested name.
`HashSequenceDB(String name)` Generate a HashSequenceDB object that will use byName to generate ids and will have the requested name.

Method Summary
`void` | `addSequence(Sequence seq)` Adds a sequence to the database.
`void` | `addSequence(String id, Sequence seq)` Add a sequence under a particular id.
`IDMaker` | `getIDMaker()` Retrieve the IDMaker associated with this database.
`String` | `getName()` Get the name of this sequence database.
`Sequence` | `getSequence(String id)` Retrieve a single sequence by its id.
`Set` | `ids()` Get an immutable set of all of the IDs in the database.
`void` | `removeSequence(String id)` Remove the sequence associated with an ID from the database.
`SequenceIterator` | `sequenceIterator()` Returns a SequenceIterator over all sequences in the database.

Methods inherited from class org.biojava.bio.seq.db.AbstractSequenceDB
`filter`

Methods inherited from class org.biojava.utils.AbstractChangeable
`addChangeListener, addChangeListener, generateChangeSupport, getChangeSupport, hasListeners, hasListeners, isUnchanging, removeChangeListener, removeChangeListener`

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.seq.db.SequenceDB
`filter`

Methods inherited from interface org.biojava.utils.Changeable
`addChangeListener, addChangeListener, isUnchanging, removeChangeListener, removeChangeListener`

Constructor Detail

### HashSequenceDB

    public HashSequenceDB()

  Generate a HashSequenceDB object that will use byName to generate ids for sequences and have a null name.

### HashSequenceDB

    public HashSequenceDB(IDMaker idMaker)

  Generate a HashSequenceDB object that will use idMaker to generate ids for sequences and have a null name.

  Parameters:
    `idMaker` - the object that will work out the default id for a sequence

### HashSequenceDB

    public HashSequenceDB(String name)

  Generate a HashSequenceDB object that will use byName to generate ids and will have the requested name.

  Parameters:
    `name` - the name for this database

### HashSequenceDB

    public HashSequenceDB(IDMaker idMaker,
                          String name)

  Generate a HashSequenceDB object that will use idMaker to generate ids for sequences and have the requested name.

  Parameters:
    `idMaker` - the object that will work out the default id for a sequence
    `name` - the name for this database

Method Detail

### getName

    public String getName()

  Description copied from interface: `SequenceDBLite`
  Get the name of this sequence database.

  Specified by:
    `getName` in interface `SequenceDBLite`
  Returns:
    the name of the sequence database, which may be null.

### getSequence

    public Sequence getSequence(String id)
                         throws IllegalIDException

  Description copied from interface: `SequenceDBLite`
  Retrieve a single sequence by its id.

  Specified by:
    `getSequence` in interface `SequenceDBLite`
  Parameters:
    `id` - the id to retrieve by
  Returns:
    the Sequence with that id
  Throws:
    `IllegalIDException` - if the database doesn't know about the id

### ids

    public Set ids()

  Description copied from interface: `SequenceDB`
  Get an immutable set of all of the IDs in the database. The ids are legal arguments to getSequence.

  Specified by:
    `ids` in interface `SequenceDB`
  Returns:
    a Set of ids - at the moment, strings

### sequenceIterator

    public SequenceIterator sequenceIterator()

  Description copied from interface: `SequenceDB`
  Returns a SequenceIterator over all sequences in the database. The order of retrieval is undefined.

  Specified by:
    `sequenceIterator` in interface `SequenceDB`
  Overrides:
    `sequenceIterator` in class `AbstractSequenceDB`
  Returns:
    a SequenceIterator over all sequences

### addSequence

    public void addSequence(String id,
                            Sequence seq)
                     throws ChangeVetoException

  Add a sequence under a particular id.

  Parameters:
    `id` - the id to use
    `seq` - the Sequence to add
  Throws:
    `ChangeVetoException` - if this addition was vetoed

### getIDMaker

    public IDMaker getIDMaker()

  Retrieve the IDMaker associated with this database.

  Returns:
    the current IDMaker object

### addSequence

    public void addSequence(Sequence seq)
                     throws ChangeVetoException

  Description copied from interface: `SequenceDBLite`
  Adds a sequence to the database.

  Specified by:
    `addSequence` in interface `SequenceDBLite`
  Overrides:
    `addSequence` in class `AbstractSequenceDB`
  Parameters:
    `seq` - the Sequence to add
  Throws:
    `ChangeVetoException` - if either the database does not allow sequences to be added or the modification was vetoed

### removeSequence

    public void removeSequence(String id)
                        throws BioException,
                               ChangeVetoException

  Description copied from interface: `SequenceDBLite`
  Remove the sequence associated with an ID from the database.

  Specified by:
    `removeSequence` in interface `SequenceDBLite`
  Overrides:
    `removeSequence` in class `AbstractSequenceDB`
  Parameters:
    `id` - the ID of the sequence to remove
  Throws:
    `IllegalIDException` - if there is no sequence for the ID
    `BioException` - if something failed while removing the sequence for that ID
    `ChangeVetoException` - if either the database does not allow sequences to be removed or the modification was vetoed

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