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## org.biojava.bio.structure
Class HetatomImpl

    java.lang.Object
      org.biojava.bio.structure.HetatomImpl

All Implemented Interfaces:
  Group

Direct Known Subclasses:
  AminoAcidImpl, NucleotideImpl

    public class HetatomImpl

extends Object
implements Group

Generic Implementation of a Group interface. AminoAcidImpl and NucleotideImpl are closely related classes.

Since:
  1.4
Version:
  %I% %G%
Author:
  Andreas Prlic, Horvath Tamas
See Also:
  `AminoAcidImpl`, `NucleotideImpl`

Field Summary
`static String` | `type` this is a "hetatm".

Constructor Summary
`HetatomImpl()`

Method Summary
`void` | `addAtom(Atom atom)` add an atom to this group.
`void` | `clearAtoms()` remove all atoms
`Object` | `clone()` returns and identical copy of this Group object .
`Atom` | `getAtom(int position)` return an atom by its position in the internal List.
`Atom` | `getAtom(String name)` get an atom throws StructureException if atom not found.
`List<Atom>` | `getAtoms()` get all atoms of this group .
`long` | `getId()` the Hibernate database ID
`Chain` | `getParent()` Returns the parent Chain of the Group
`String` | `getPDBCode()` Returns the PDBCode.
`String` | `getPDBName()` Returns the PDBName.
`Map<String,Object>` | `getProperties()` return properties.
`Object` | `getProperty(String key)` get a single property .
`String` | `getType()` Returns the type value.
`boolean` | `has3D()` returns true or false, depending if this group has 3D coordinates or not.
`boolean` | `hasAminoAtoms()` calculate if a groups has all atoms required for an amino acid this allows to include chemically modified amino acids that are labeled hetatoms into some computations ...
`boolean` | `hasAtom(String name)` test is an Atom with name is existing.
`Iterator<Atom>` | `iterator()` return an AtomIterator.
`void` | `setAtoms(List<Atom> atoms)` set the atoms of this group
`void` | `setId(long id)` the Hibernate database ID
`void` | `setParent(Chain parent)` Set the back-reference (to its parent Chain)
`void` | `setPDBCode(String pdb)` set the PDB code.
`void` | `setPDBFlag(boolean flag)` flag if group has 3D data.
`void` | `setPDBName(String s)` set three character name of Group .
`void` | `setProperties(Map<String,Object> props)` properties of this amino acid.
`void` | `setProperty(String key, Object value)` set a single property .
`int` | `size()` getnumber of atoms.
`String` | `toString()`

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

Field Detail

### type

    public static final String type

  this is a "hetatm".

  See Also:
    Constant Field Values

Constructor Detail

### HetatomImpl

    public HetatomImpl()

Method Detail

### has3D

    public boolean has3D()

  returns true or false, depending if this group has 3D coordinates or not.

  Specified by:
    `has3D` in interface `Group`
  Returns:
    true if Group has 3D coordinates

### setPDBFlag

    public void setPDBFlag(boolean flag)

  flag if group has 3D data.

  Specified by:
    `setPDBFlag` in interface `Group`
  Parameters:
    `flag` - true to set flag that this Group has 3D coordinates

### getPDBCode

    public String getPDBCode()

  Returns the PDBCode.

  Specified by:
    `getPDBCode` in interface `Group`
  Returns:
    a String representing the PDBCode value
  See Also:
    `setPDBCode(java.lang.String)`

### setPDBCode

    public void setPDBCode(String pdb)

  set the PDB code.

  Specified by:
    `setPDBCode` in interface `Group`
  Parameters:
    `pdb` - a String specifying the PDBCode value
  See Also:
    `getPDBCode()`

### setPDBName

    public void setPDBName(String s)
                    throws PDBParseException

  set three character name of Group .

  Specified by:
    `setPDBName` in interface `Group`
  Parameters:
    `s` - a String specifying the PDBName value
  Throws:
    `PDBParseException` - ...
  See Also:
    `getPDBName()`

### getPDBName

    public String getPDBName()

  Returns the PDBName.

  Specified by:
    `getPDBName` in interface `Group`
  Returns:
    a String representing the PDBName value
  See Also:
    `setPDBName(java.lang.String)`

### addAtom

    public void addAtom(Atom atom)

  add an atom to this group.

  Specified by:
    `addAtom` in interface `Group`
  Parameters:
    `atom` - an Atom object

### clearAtoms

    public void clearAtoms()

  remove all atoms

  Specified by:
    `clearAtoms` in interface `Group`

### size

    public int size()

  getnumber of atoms.

  Specified by:
    `size` in interface `Group`
  Returns:
    number of atoms

### getAtoms

    public List<Atom> getAtoms()

  get all atoms of this group . returns a List of all atoms in this Group

  Specified by:
    `getAtoms` in interface `Group`
  Returns:
    an List object representing the atoms value
  See Also:
    `Group.setAtoms(List)`

### setAtoms

    public void setAtoms(List<Atom> atoms)

  set the atoms of this group

  Specified by:
    `setAtoms` in interface `Group`
  Parameters:
    `atoms` - a list of atoms
  See Also:
    `Atom`

### getAtom

    public Atom getAtom(String name)
                 throws StructureException

  get an atom throws StructureException if atom not found.

  Specified by:
    `getAtom` in interface `Group`
  Parameters:
    `name` - a String
  Returns:
    an Atom object
  Throws:
    `StructureException` - ...

### getAtom

    public Atom getAtom(int position)
                 throws StructureException

  return an atom by its position in the internal List.

  Specified by:
    `getAtom` in interface `Group`
  Parameters:
    `position` - an int
  Returns:
    an Atom object
  Throws:
    `StructureException` - ...

### hasAtom

    public boolean hasAtom(String name)

  test is an Atom with name is existing.

  Specified by:
    `hasAtom` in interface `Group`
  Parameters:
    `name` - a String ...
  Returns:
    true if Atom with name is existing within this group

### getType

    public String getType()

  Returns the type value.

  Specified by:
    `getType` in interface `Group`
  Returns:
    a String representing the type value

### toString

    public String toString()

  Overrides:
    `toString` in class `Object`

### hasAminoAtoms

    public boolean hasAminoAtoms()

  calculate if a groups has all atoms required for an amino acid this allows to include chemically modified amino acids that are labeled hetatoms into some computations ... the usual way to identify if a group is an amino acid is getType() !

  amino atoms are : N, CA, C, O, CB GLY does not have CB (unless we would calculate some artificially

  Example: 1DW9 chain A first group is a Selenomethionine, provided as HETATM, but here returns true.

           HETATM    1  N   MSE A   1      11.720  20.973   1.584  0.00  0.00           N
           HETATM    2  CA  MSE A   1      10.381  20.548   1.139  0.00  0.00           C
           HETATM    3  C   MSE A   1       9.637  20.037   2.398  0.00  0.00           C
           HETATM    4  O   MSE A   1      10.198  19.156   2.985  0.00  0.00           O
           HETATM    5  CB  MSE A   1      10.407  19.441   0.088  0.00  0.00           C

  Specified by:
    `hasAminoAtoms` in interface `Group`
  Returns:
    true if all Atoms required for an AminoAcid are available (N, CA, C, O, CB)
  See Also:
    `getType()`

### setProperties

    public void setProperties(Map<String,Object> props)

  properties of this amino acid. currerntly available properties. are: phi psi

  Specified by:
    `setProperties` in interface `Group`
  Parameters:
    `props` - a Map object specifying the properties value
  See Also:
    `getProperties()`

### getProperties

    public Map<String,Object> getProperties()

  return properties.

  Specified by:
    `getProperties` in interface `Group`
  Returns:
    a HashMap object representing the properties value
  See Also:
    `setProperties(java.util.Map)`

### setProperty

    public void setProperty(String key,
                            Object value)

  set a single property .

  Specified by:
    `setProperty` in interface `Group`
  Parameters:
    `key` - a String
    `value` - an Object
  See Also:
    `getProperties()`, `getProperty(java.lang.String)`

### getProperty

    public Object getProperty(String key)

  get a single property .

  Specified by:
    `getProperty` in interface `Group`
  Parameters:
    `key` - a String
  Returns:
    an Object
  See Also:
    `setProperty(java.lang.String, java.lang.Object)`, `setProperties(java.util.Map)`

### iterator

    public Iterator<Atom> iterator()

  return an AtomIterator.

  Specified by:
    `iterator` in interface `Group`
  Returns:
    an Iterator object

### clone

    public Object clone()

  returns and identical copy of this Group object .

  Specified by:
    `clone` in interface `Group`
  Overrides:
    `clone` in class `Object`
  Returns:
    and identical copy of this Group object

### setParent

    public void setParent(Chain parent)

  Set the back-reference (to its parent Chain)

  Specified by:
    `setParent` in interface `Group`
  Parameters:
    `parent` - the parent Chain
  See Also:
    `Group.getParent()`

### getParent

    public Chain getParent()

  Returns the parent Chain of the Group

  Specified by:
    `getParent` in interface `Group`
  Returns:
    Chain the Chain object that contains the Group
  See Also:
    `Group.setParent(Chain)`

### getId

    public long getId()

  the Hibernate database ID

  Returns:
    the id

### setId

    public void setId(long id)

  the Hibernate database ID

  Parameters:
    `id` - the hibernate id

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