org.apache.oodt.xmlquery

Class QueryElement

java.lang.Object

org.apache.oodt.xmlquery.QueryElement

All Implemented Interfaces:

Serializable, Cloneable, Documentable

public class QueryElement
extends Object
implements Serializable, Cloneable, Documentable

A single query element. An object of this class is an element of a query.

TODO: Consider computing proper mime-type based on class of object being inserted as a value into the result.

Author:

Kelly

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
QueryElement() Create a blank query element.
QueryElement(Node node)
QueryElement(String role, String value) Create a query element.

Method Summary

Modifier and Type	Method and Description
Object	clone()
boolean	equals(Object rhs)
String	getRole() Get my role.
String	getValue() Get my value.
int	hashCode()
void	setRole(String role) Set my role.
void	setValue(String value) Set my value.
String	toString()
Node	toXML(Document doc) Document (aka serialize) this object into an XML DOM node.

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

QueryElement

public QueryElement()

Create a blank query element.

QueryElement

public QueryElement(String role,
                    String value)

Create a query element.

Parameters:

role - The role the element plays.

value - The value of the element.

QueryElement

public QueryElement(Node node)

Method Detail

getRole

public String getRole()

Get my role.

Returns:

The role this element plays.

getValue

public String getValue()

Get my value.

Returns:

The value of this element.

setRole

public void setRole(String role)

Set my role.

Parameters:

role - The new role this element plays.

setValue

public void setValue(String value)

Set my value.

Parameters:

value - The new value of this element.

toXML

public Node toXML(Document doc)
           throws DOMException

Description copied from interface: Documentable

Document (aka serialize) this object into an XML DOM node.

Specified by:

toXML in interface Documentable

Parameters:

doc - What document will own the node.

Returns:

This object as an XML DOM node.

Throws:

DOMException - If an error occurs while creating the DOM structure.

equals

public boolean equals(Object rhs)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

clone

public Object clone()

Overrides:

clone in class Object

toString

public String toString()

Overrides:

toString in class Object