All Implemented Interfaces:

Serializable, Cloneable, NamespaceAware

Direct Known Subclasses:

LocatedDocType
```
public class DocType
extends Content
```
An XML DOCTYPE declaration. Method allow the user to get and set the root element name, public id, system id and internal subset.

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from class org.jdom.Content
  Content.CType

Field Summary

Fields
Modifier and Type	Field	Description
`protected String`	`elementName`	The element being constrained
`protected String`	`internalSubset`	The internal subset of the DOCTYPE
`protected String`	`publicID`	The public ID of the DOCTYPE
`protected String`	`systemID`	The system ID of the DOCTYPE

Fields inherited from class org.jdom.Content
ctype, parent

Constructor Summary

Constructors
Modifier	Constructor	Description
`protected`	`DocType()`	Default, no-args constructor for implementations to use if needed.
	`DocType(String elementName)`	This will create the `DocType` with the specified element name
	`DocType(String elementName, String systemID)`	This will create the `DocType` with the specified element name and reference to an external DTD.
	`DocType(String elementName, String publicID, String systemID)`	This will create the `DocType` with the specified element name and a reference to an external DTD.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`DocType`	`clone()`	Return a deep clone of this instance.
`DocType`	`detach()`	Detaches this child from its parent or does nothing if the child has no parent.
`String`	`getElementName()`	This will retrieve the element name being constrained.
`String`	`getInternalSubset()`	This returns the data for the internal subset.
`Document`	`getParent()`	Return this child's parent, or null if this child is currently not attached.
`String`	`getPublicID()`	This will retrieve the public ID of an externally referenced DTD, or an empty `String` if none is referenced.
`String`	`getSystemID()`	This will retrieve the system ID of an externally referenced DTD, or an empty `String` if none is referenced.
`String`	`getValue()`	Returns the empty string since doctypes don't have an XPath 1.0 string value.
`DocType`	`setElementName(String elementName)`	This will set the root element name declared by this DOCTYPE declaration.
`void`	`setInternalSubset(String newData)`	This sets the data for the internal subset.
`protected DocType`	`setParent(Parent parent)`	Sets the parent of this Content.
`DocType`	`setPublicID(String publicID)`	This will set the public ID of an externally referenced DTD.
`DocType`	`setSystemID(String systemID)`	This will set the system ID of an externally referenced DTD.
`String`	`toString()`	This returns a `String` representation of the `DocType`, suitable for debugging.

Methods inherited from class org.jdom.Content
equals, getCType, getDocument, getNamespacesInherited, getNamespacesInScope, getNamespacesIntroduced, getParentElement, hashCode

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

- Field Detail
  - elementName
```
protected String elementName
```
    The element being constrained
  - publicID
```
protected String publicID
```
    The public ID of the DOCTYPE
  - systemID
```
protected String systemID
```
    The system ID of the DOCTYPE
  - internalSubset
```
protected String internalSubset
```
    The internal subset of the DOCTYPE
- Constructor Detail
  - DocType
```
protected DocType()
```
    Default, no-args constructor for implementations to use if needed.
  - DocType
```
public DocType(String elementName,
               String publicID,
               String systemID)
```
    This will create the DocType with the specified element name and a reference to an external DTD.
    
    Parameters:
    
    elementName - String name of element being constrained.
    
    publicID - String public ID of referenced DTD
    
    systemID - String system ID of referenced DTD
    
    Throws:
    
    IllegalDataException - if the given system ID is not a legal system literal or the public ID is not a legal public ID.
    
    IllegalNameException - if the given root element name is not a legal XML element name.
  - DocType
```
public DocType(String elementName,
               String systemID)
```
    This will create the DocType with the specified element name and reference to an external DTD.
    
    Parameters:
    
    elementName - String name of element being constrained.
    
    systemID - String system ID of referenced DTD
    
    Throws:
    
    IllegalDataException - if the given system ID is not a legal system literal.
    
    IllegalNameException - if the given root element name is not a legal XML element name.
  - DocType
```
public DocType(String elementName)
```
    This will create the DocType with the specified element name
    
    Parameters:
    
    elementName - String name of element being constrained.
    
    Throws:
    
    IllegalNameException - if the given root element name is not a legal XML element name.
- Method Detail
  - getElementName
```
public String getElementName()
```
    This will retrieve the element name being constrained.
    
    Returns:
    
    String - element name for DOCTYPE
  - setElementName
```
public DocType setElementName(String elementName)
```
    This will set the root element name declared by this DOCTYPE declaration.
    
    Parameters:
    
    elementName - String name of root element being constrained.
    
    Returns:
    
    this DocType instance
    
    Throws:
    
    IllegalNameException - if the given root element name is not a legal XML element name.
  - getPublicID
```
public String getPublicID()
```
    This will retrieve the public ID of an externally referenced DTD, or an empty String if none is referenced.
    
    Returns:
    
    String - public ID of referenced DTD.
  - setPublicID
```
public DocType setPublicID(String publicID)
```
    This will set the public ID of an externally referenced DTD.
    
    Parameters:
    
    publicID - id to set
    
    Returns:
    
    DocType DocType this DocType object
    
    Throws:
    
    IllegalDataException - if the given public ID is not a legal public ID.
  - getSystemID
```
public String getSystemID()
```
    This will retrieve the system ID of an externally referenced DTD, or an empty String if none is referenced.
    
    Returns:
    
    String - system ID of referenced DTD.
  - setSystemID
```
public DocType setSystemID(String systemID)
```
    This will set the system ID of an externally referenced DTD.
    
    Parameters:
    
    systemID - id to set
    
    Returns:
    
    systemID String system ID of referenced DTD.
    
    Throws:
    
    IllegalDataException - if the given system ID is not a legal system literal.
  - getValue
```
public String getValue()
```
    Returns the empty string since doctypes don't have an XPath 1.0 string value.
    
    Specified by:
    
    getValue in class Content
    
    Returns:
    
    the empty string
  - setInternalSubset
```
public void setInternalSubset(String newData)
```
    This sets the data for the internal subset.
    
    Parameters:
    
    newData - data for the internal subset, as a String.
  - getInternalSubset
```
public String getInternalSubset()
```
    This returns the data for the internal subset.
    
    Returns:
    
    String - the internal subset
  - toString
```
public String toString()
```
    This returns a String representation of the DocType, suitable for debugging.
    
    Overrides:
    
    toString in class Object
    
    Returns:
    
    String - information about the DocType
  - clone
```
public DocType clone()
```
    Return a deep clone of this instance. Even if this instance has a parent, the returned clone will not.
    All JDOM core classes are Cloneable, and never throw CloneNotSupportedException. Additionally all Cloneable JDOM classes return the correct type of instance from this method and there is no need to cast the result (co-variant return vaue).
    Subclasses of this should still call super.clone() in their clone method.
    
    Overrides:
    
    clone in class Content
  - detach
```
public DocType detach()
```
    Description copied from class: Content
    
    Detaches this child from its parent or does nothing if the child has no parent.
    This method can be overridden by particular Content subclasses to return a specific type of Content (co-variant return type). All overriding subclasses must call super.detach();
    
    Overrides:
    
    detach in class Content
    
    Returns:
    
    this child detached
  - setParent
```
protected DocType setParent(Parent parent)
```
    Description copied from class: Content
    
    Sets the parent of this Content. The caller is responsible for removing any pre-existing parentage.
    This method can be overridden by particular Content subclasses to return a specific type of Content (co-variant return type). All overriding subclasses must call super.setParent(Parent);
    
    Overrides:
    
    setParent in class Content
    
    Parameters:
    
    parent - new parent element
    
    Returns:
    
    the target element
  - getParent
```
public Document getParent()
```
    Description copied from class: Content
    
    Return this child's parent, or null if this child is currently not attached. The parent can be either an Element or a Document.
    This method can be overridden by particular Content subclasses to return a specific type of Parent (co-variant return type). All overriding subclasses must call super.getParent();
    
    Overrides:
    
    getParent in class Content
    
    Returns:
    
    this child's parent or null if none

Class DocType

Nested Class Summary

Nested classes/interfaces inherited from class org.jdom.Content

Field Summary

Fields inherited from class org.jdom.Content

Constructor Summary

Method Summary

Methods inherited from class org.jdom.Content

Methods inherited from class java.lang.Object

Field Detail

elementName

publicID

systemID

internalSubset

Constructor Detail

DocType

DocType

DocType

DocType

Method Detail

getElementName

setElementName

getPublicID

setPublicID

getSystemID

setSystemID

getValue

setInternalSubset

getInternalSubset

toString

clone

detach

setParent

getParent