Package com.storedobject.common

Class HashDataSet

java.lang.Object

com.storedobject.common.HashDataSet

All Implemented Interfaces:

DataSet

public class HashDataSet
extends Object
implements DataSet

An implementation of DataSet using an internal HashMap.

Author:

Syam

Constructor Summary

Constructors

Constructor	Description
HashDataSet(StringList keys)	Constructor.
HashDataSet(String... keys)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	add(String key)	Add an attribute key.
boolean	canSet(String key)	Check whether an attribute can be set or not.
Object	get(String key)	Get the value for the given attribute.
StringList	keys()	Get the keys a list.
void	remove(String key)	Remove an attribute key.
void	set(String key, Object value)	Set an attribute value.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.storedobject.common.DataSet

getType

Constructor Details

HashDataSet

public HashDataSet(String... keys)

Constructor.

Parameters:

keys - Keys.

HashDataSet

public HashDataSet(StringList keys)

Constructor.

Parameters:

keys - Keys.

Method Details

set

public void set(String key,
 Object value)

Description copied from interface: DataSet

Set an attribute value.

Specified by:

set in interface DataSet

Parameters:

key - Key of the attribute.

value - Value to set.

canSet

public boolean canSet(String key)

Description copied from interface: DataSet

Check whether an attribute can be set or not. It is not mandatory that an attribute is settable.

Specified by:

canSet in interface DataSet

Parameters:

key - Key of the attribute.

Returns:

True/false.

keys

public StringList keys()

Description copied from interface: DataSet

Get the keys a list.

Specified by:

keys in interface DataSet

Returns:

Keys.

get

public Object get(String key)

Description copied from interface: DataSet

Get the value for the given attribute.

Specified by:

get in interface DataSet

Parameters:

key - Key of the attribute.

Returns:

Value of the attribute.

add

public void add(String key)

Description copied from interface: DataSet

Add an attribute key.

Specified by:

add in interface DataSet

Parameters:

key - Key to be added.

remove

public void remove(String key)

Description copied from interface: DataSet

Remove an attribute key.

Specified by:

remove in interface DataSet

Parameters:

key - Key to be removed.