Class FormatableHashtable

java.lang.Object

java.util.Dictionary<Object,Object>

java.util.Hashtable<Object,Object>

org.apache.derby.iapi.services.io.FormatableHashtable

All Implemented Interfaces:

Externalizable, Serializable, Cloneable, Map<Object,Object>, Formatable, TypedFormat

public class FormatableHashtable
extends Hashtable<Object,Object>
implements Formatable

A formatable holder for a java.util.Hashtable. Used to avoid serializing Properties.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
FormatableHashtable()	Niladic constructor for formatable

Method Summary

Modifier and Type	Method	Description
boolean	getBoolean(Object key)
int	getInt(Object key)
long	getLong(Object key)
int	getTypeFormatId()	Get the formatID which corresponds to this class.
Object	put(Object key, Object value)	Our special put method that wont barf on a null value.
void	putBoolean(Object key, boolean value)
void	putInt(Object key, int value)
void	putLong(Object key, long value)
void	readExternal(ObjectInput in)	Read the hash table from a stream of stored objects.
void	writeExternal(ObjectOutput out)	Write the hash table out.

Methods inherited from class Hashtable

clear, clone, compute, computeIfAbsent, computeIfPresent, contains, containsKey, containsValue, elements, entrySet, equals, forEach, get, getOrDefault, hashCode, isEmpty, keys, keySet, merge, putAll, putIfAbsent, rehash, remove, remove, replace, replace, replaceAll, size, toString, values

Methods inherited from class Object

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

Constructor Details

FormatableHashtable

public FormatableHashtable()

Niladic constructor for formatable

Method Details

put

public Object put(Object key,
 Object value)

Our special put method that wont barf on a null value.

Specified by:

put in interface Map<Object,Object>

Overrides:

put in class Hashtable<Object,Object>

See Also:

• Hashtable

putInt

public void putInt(Object key,
 int value)

getInt

public int getInt(Object key)

putLong

public void putLong(Object key,
 long value)

getLong

public long getLong(Object key)

putBoolean

public void putBoolean(Object key,
 boolean value)

getBoolean

public boolean getBoolean(Object key)

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Write the hash table out. Step through the enumeration and write the strings out in UTF.

Specified by:

writeExternal in interface Externalizable

Parameters:

out - write bytes here

Throws:

IOException - thrown on error

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
ClassNotFoundException

Read the hash table from a stream of stored objects.

Specified by:

readExternal in interface Externalizable

Parameters:

in - read this.

Throws:

IOException - thrown on error

ClassNotFoundException - thrown on error

getTypeFormatId

public int getTypeFormatId()

Get the formatID which corresponds to this class.

Specified by:

getTypeFormatId in interface TypedFormat

Returns:

the formatID of this class