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

java.lang.Object
  java.util.Dictionary<K,V>
      java.util.Hashtable
          org.apache.derby.iapi.services.io.FormatableHashtable

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Cloneable, java.util.Map, Formatable, TypedFormat

public class FormatableHashtable
extends java.util.Hashtable
implements Formatable

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

See Also:

Serialized Form

Constructor Summary

FormatableHashtable()
Niladic constructor for formatable

Method Summary

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

Methods inherited from class java.util.Hashtable

clear, clone, contains, containsKey, containsValue, elements, entrySet, equals, get, hashCode, isEmpty, keys, keySet, putAll, rehash, remove, size, toString, values

Methods inherited from class java.lang.Object

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

Constructor Detail

FormatableHashtable

public FormatableHashtable()

Niladic constructor for formatable

Method Detail

put

public java.lang.Object put(java.lang.Object key,
                            java.lang.Object value)

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

Specified by:

put in interface java.util.Map

Overrides:

put in class java.util.Hashtable

See Also:

Hashtable

putInt

public void putInt(java.lang.Object key,
                   int value)

getInt

public int getInt(java.lang.Object key)

putLong

public void putLong(java.lang.Object key,
                    long value)

getLong

public long getLong(java.lang.Object key)

putBoolean

public void putBoolean(java.lang.Object key,
                       boolean value)

getBoolean

public boolean getBoolean(java.lang.Object key)

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

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

Specified by:

writeExternal in interface java.io.Externalizable

Parameters:

out - write bytes here

Throws:

java.io.IOException - thrown on error

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Read the hash table from a stream of stored objects.

Specified by:

readExternal in interface java.io.Externalizable

Parameters:

in - read this.

Throws:

java.io.IOException - thrown on error

java.lang.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