com.infoengine.connector
Class Data

java.lang.Object
  com.infoengine.connector.Data

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

Attribute, Collection, Element, Group

public class Data

extends Object

implements Serializable

base data class for lightweight Info*Engine data objects.

See Also:

Attribute, Element, Group, Serialized Form

Field Summary

protected Hashtable

_meta

Constructor Summary

Data()

Method Summary

void	addMetaValue(String name, Object data) add a named metadata value
boolean	equals(Object other) test this data with another object for equality
Enumeration	getMetaNames() get an enumeration of the names of metadata on this object
Object	getMetaValue(String name) get a named metadata value. if the named metadata is multi-valued then the first value is returned.
Vector	getMetaValues(String name) get a vector of named metadata values.
int	hashCode() generate this data objects hashCode. value is based on metadata
void	removeMetaValues(String name) remote named metadata values
void	setMetaValue(String name, Object data) set a named metadata value this replaces any previously stored metadata under the same name.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Detail

_meta

protected Hashtable _meta

Constructor Detail

Data

public Data()

Method Detail

getMetaNames

public Enumeration getMetaNames()

get an enumeration of the names of metadata on this object

Returns:

Enumeration

getMetaValues

public Vector getMetaValues(String name)

get a vector of named metadata values.

Parameters:

name - the metadata name

Returns:

Vector or null if no metadata found under name

getMetaValue

public Object getMetaValue(String name)

get a named metadata value.
if the named metadata is multi-valued then the first value is returned.

Parameters:

name - the metadata name

Returns:

Object or null if no metadata found under name

setMetaValue

public void setMetaValue(String name,
                         Object data)

set a named metadata value
this replaces any previously stored metadata under the same name.

Parameters:

name - the metadata name

data - the new metadata value

addMetaValue

public void addMetaValue(String name,
                         Object data)

add a named metadata value

Parameters:

name - the metadata name

data - the metadata value to add

removeMetaValues

public void removeMetaValues(String name)

remote named metadata values

Parameters:

name - the named metadata to remove

equals

public boolean equals(Object other)

test this data with another object for equality

Returns:

boolean

hashCode

public int hashCode()

generate this data objects hashCode.
value is based on metadata

Returns:

int