FormatableHashtable (Apache Derby V10.14 Internals)

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

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Cloneable, java.util.Map<java.lang.Object,java.lang.Object>, Formatable, TypedFormat
```
public class FormatableHashtable
extends java.util.Hashtable<java.lang.Object,java.lang.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

Constructors
Constructor	Description
`FormatableHashtable()`	Niladic constructor for formatable

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`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, 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 interface java.util.Map

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<java.lang.Object,java.lang.Object>
    
    Overrides:
    
    put in class java.util.Hashtable<java.lang.Object,java.lang.Object>
    
    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

Class FormatableHashtable

Constructor Summary

Method Summary

Methods inherited from class java.util.Hashtable

Methods inherited from interface java.util.Map

Methods inherited from class java.lang.Object

Constructor Detail

FormatableHashtable

Method Detail

put

putInt

getInt

putLong

getLong

putBoolean

getBoolean

writeExternal

readExternal

getTypeFormatId