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## org.jivesoftware.util.cache
Class DummyExternalizableUtil

    java.lang.Object
      org.jivesoftware.util.cache.DummyExternalizableUtil

All Implemented Interfaces:
  ExternalizableUtilStrategy

    public class DummyExternalizableUtil

extends Object
implements ExternalizableUtilStrategy

Dummy implementation that does nothing. The open source version of the server uses this strategy.

Author:
  Gaston Dombiak

Constructor Summary
`DummyExternalizableUtil()`

Method Summary
`boolean` | `readBoolean(DataInput in)`
`byte[]` | `readByteArray(DataInput in)`
`int` | `readExternalizableCollection(DataInput in, Collection<? extends Externalizable> value, ClassLoader loader)`
`int` | `readExternalizableMap(DataInput in, Map<String,? extends Externalizable> map, ClassLoader loader)`
`int` | `readInt(DataInput in)`
`long` | `readLong(DataInput in)`
`long[]` | `readLongArray(DataInput in)` Reads an array of long values.
`Map<Long,Integer>` | `readLongIntMap(DataInput in)` Reads a Map of Long key and Integer value pairs.
`String` | `readSafeUTF(DataInput in)`
`Serializable` | `readSerializable(DataInput in)`
`int` | `readSerializableCollection(DataInput in, Collection<? extends Serializable> value, ClassLoader loader)`
`int` | `readSerializableMap(DataInput in, Map<? extends Serializable,? extends Serializable> map, ClassLoader loader)`
`List<String>` | `readStringList(DataInput in)` Reads a List of Strings.
`Map<String,String>` | `readStringMap(DataInput in)` Reads a Map of String key and value pairs.
`int` | `readStrings(DataInput in, Collection<String> collection)`
`int` | `readStringsMap(DataInput in, Map<String,Set<String>> map)`
`void` | `writeBoolean(DataOutput out, boolean value)`
`void` | `writeByteArray(DataOutput out, byte[] value)`
`void` | `writeExternalizableCollection(DataOutput out, Collection<? extends Externalizable> value)`
`void` | `writeExternalizableMap(DataOutput out, Map<String,? extends Externalizable> map)`
`void` | `writeInt(DataOutput out, int value)`
`void` | `writeLong(DataOutput out, long value)`
`void` | `writeLongArray(DataOutput out, long[] array)` Writes an array of long values.
`void` | `writeLongIntMap(DataOutput out, Map<Long,Integer> map)` Writes a Map of Long key and Integer value pairs.
`void` | `writeSafeUTF(DataOutput out, String value)`
`void` | `writeSerializable(DataOutput out, Serializable value)`
`void` | `writeSerializableCollection(DataOutput out, Collection<? extends Serializable> value)`
`void` | `writeSerializableMap(DataOutput out, Map<? extends Serializable,? extends Serializable> map)`
`void` | `writeStringList(DataOutput out, List<String> stringList)` Writes a List of Strings.
`void` | `writeStringMap(DataOutput out, Map<String,String> stringMap)` Writes a Map of String key and value pairs.
`void` | `writeStrings(DataOutput out, Collection<String> collection)`
`void` | `writeStringsMap(DataOutput out, Map<String,Set<String>> map)`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### DummyExternalizableUtil

    public DummyExternalizableUtil()

Method Detail

### writeStringMap

    public void writeStringMap(DataOutput out,
                               Map<String,String> stringMap)
                        throws IOException

  Writes a Map of String key and value pairs. This method handles the case when the Map is `null`.

  Specified by:
    `writeStringMap` in interface `ExternalizableUtilStrategy`
  Parameters:
    `out` - the output stream.
    `stringMap` - the Map of String key/value pairs.
  Throws:
    `IOException` - if an error occurs.

### readStringMap

    public Map<String,String> readStringMap(DataInput in)
                                     throws IOException

  Reads a Map of String key and value pairs. This method will return `null` if the Map written to the stream was `null`.

  Specified by:
    `readStringMap` in interface `ExternalizableUtilStrategy`
  Parameters:
    `in` - the input stream.
  Returns:
    a Map of String key/value pairs.
  Throws:
    `IOException` - if an error occurs.

### writeLongIntMap

    public void writeLongIntMap(DataOutput out,
                                Map<Long,Integer> map)
                         throws IOException

  Writes a Map of Long key and Integer value pairs. This method handles the case when the Map is `null`.

  Specified by:
    `writeLongIntMap` in interface `ExternalizableUtilStrategy`
  Parameters:
    `out` - the output stream.
    `map` - the Map of Long key/Integer value pairs.
  Throws:
    `IOException` - if an error occurs.

### readLongIntMap

    public Map<Long,Integer> readLongIntMap(DataInput in)
                                     throws IOException

  Reads a Map of Long key and Integer value pairs. This method will return `null` if the Map written to the stream was `null`.

  Specified by:
    `readLongIntMap` in interface `ExternalizableUtilStrategy`
  Parameters:
    `in` - the input stream.
  Returns:
    a Map of Long key/Integer value pairs.
  Throws:
    `IOException` - if an error occurs.

### writeStringList

    public void writeStringList(DataOutput out,
                                List<String> stringList)
                         throws IOException

  Writes a List of Strings. This method handles the case when the List is `null`.

  Specified by:
    `writeStringList` in interface `ExternalizableUtilStrategy`
  Parameters:
    `out` - the output stream.
    `stringList` - the List of Strings.
  Throws:
    `IOException` - if an error occurs.

### readStringList

    public List<String> readStringList(DataInput in)
                                throws IOException

  Reads a List of Strings. This method will return `null` if the List written to the stream was `null`.

  Specified by:
    `readStringList` in interface `ExternalizableUtilStrategy`
  Parameters:
    `in` - the input stream.
  Returns:
    a List of Strings.
  Throws:
    `IOException` - if an error occurs.

### writeLongArray

    public void writeLongArray(DataOutput out,
                               long[] array)
                        throws IOException

  Writes an array of long values. This method handles the case when the array is `null`.

  Specified by:
    `writeLongArray` in interface `ExternalizableUtilStrategy`
  Parameters:
    `out` - the output stream.
    `array` - the array of long values.
  Throws:
    `IOException` - if an error occurs.

### readLongArray

    public long[] readLongArray(DataInput in)
                         throws IOException

  Reads an array of long values. This method will return `null` if the array written to the stream was `null`.

  Specified by:
    `readLongArray` in interface `ExternalizableUtilStrategy`
  Parameters:
    `in` - the input stream.
  Returns:
    an array of long values.
  Throws:
    `IOException` - if an error occurs.

### writeLong

    public void writeLong(DataOutput out,
                          long value)

  Specified by:
    `writeLong` in interface `ExternalizableUtilStrategy`

### readLong

    public long readLong(DataInput in)

  Specified by:
    `readLong` in interface `ExternalizableUtilStrategy`

### writeBoolean

    public void writeBoolean(DataOutput out,
                             boolean value)

  Specified by:
    `writeBoolean` in interface `ExternalizableUtilStrategy`

### readBoolean

    public boolean readBoolean(DataInput in)

  Specified by:
    `readBoolean` in interface `ExternalizableUtilStrategy`

### writeByteArray

    public void writeByteArray(DataOutput out,
                               byte[] value)
                        throws IOException

  Specified by:
    `writeByteArray` in interface `ExternalizableUtilStrategy`
  Throws:
    `IOException`

### readByteArray

    public byte[] readByteArray(DataInput in)
                         throws IOException

  Specified by:
    `readByteArray` in interface `ExternalizableUtilStrategy`
  Throws:
    `IOException`

### writeSerializable

    public void writeSerializable(DataOutput out,
                                  Serializable value)
                           throws IOException

  Specified by:
    `writeSerializable` in interface `ExternalizableUtilStrategy`
  Throws:
    `IOException`

### readSerializable

    public Serializable readSerializable(DataInput in)
                                  throws IOException

  Specified by:
    `readSerializable` in interface `ExternalizableUtilStrategy`
  Throws:
    `IOException`

### writeSafeUTF

    public void writeSafeUTF(DataOutput out,
                             String value)

  Specified by:
    `writeSafeUTF` in interface `ExternalizableUtilStrategy`

### readSafeUTF

    public String readSafeUTF(DataInput in)

  Specified by:
    `readSafeUTF` in interface `ExternalizableUtilStrategy`

### writeExternalizableCollection

    public void writeExternalizableCollection(DataOutput out,
                                              Collection<? extends Externalizable> value)
                                       throws IOException

  Specified by:
    `writeExternalizableCollection` in interface `ExternalizableUtilStrategy`
  Throws:
    `IOException`

### readExternalizableCollection

    public int readExternalizableCollection(DataInput in,
                                            Collection<? extends Externalizable> value,
                                            ClassLoader loader)
                                     throws IOException

  Specified by:
    `readExternalizableCollection` in interface `ExternalizableUtilStrategy`
  Throws:
    `IOException`

### writeSerializableCollection

    public void writeSerializableCollection(DataOutput out,
                                            Collection<? extends Serializable> value)
                                     throws IOException

  Specified by:
    `writeSerializableCollection` in interface `ExternalizableUtilStrategy`
  Throws:
    `IOException`

### readSerializableCollection

    public int readSerializableCollection(DataInput in,
                                          Collection<? extends Serializable> value,
                                          ClassLoader loader)
                                   throws IOException

  Specified by:
    `readSerializableCollection` in interface `ExternalizableUtilStrategy`
  Throws:
    `IOException`

### writeExternalizableMap

    public void writeExternalizableMap(DataOutput out,
                                       Map<String,? extends Externalizable> map)
                                throws IOException

  Specified by:
    `writeExternalizableMap` in interface `ExternalizableUtilStrategy`
  Throws:
    `IOException`

### readExternalizableMap

    public int readExternalizableMap(DataInput in,
                                     Map<String,? extends Externalizable> map,
                                     ClassLoader loader)
                              throws IOException

  Specified by:
    `readExternalizableMap` in interface `ExternalizableUtilStrategy`
  Throws:
    `IOException`

### writeSerializableMap

    public void writeSerializableMap(DataOutput out,
                                     Map<? extends Serializable,? extends Serializable> map)
                              throws IOException

  Specified by:
    `writeSerializableMap` in interface `ExternalizableUtilStrategy`
  Throws:
    `IOException`

### readSerializableMap

    public int readSerializableMap(DataInput in,
                                   Map<? extends Serializable,? extends Serializable> map,
                                   ClassLoader loader)
                            throws IOException

  Specified by:
    `readSerializableMap` in interface `ExternalizableUtilStrategy`
  Throws:
    `IOException`

### writeStringsMap

    public void writeStringsMap(DataOutput out,
                                Map<String,Set<String>> map)
                         throws IOException

  Specified by:
    `writeStringsMap` in interface `ExternalizableUtilStrategy`
  Throws:
    `IOException`

### readStringsMap

    public int readStringsMap(DataInput in,
                              Map<String,Set<String>> map)
                       throws IOException

  Specified by:
    `readStringsMap` in interface `ExternalizableUtilStrategy`
  Throws:
    `IOException`

### writeStrings

    public void writeStrings(DataOutput out,
                             Collection<String> collection)
                      throws IOException

  Specified by:
    `writeStrings` in interface `ExternalizableUtilStrategy`
  Throws:
    `IOException`

### readStrings

    public int readStrings(DataInput in,
                           Collection<String> collection)
                    throws IOException

  Specified by:
    `readStrings` in interface `ExternalizableUtilStrategy`
  Throws:
    `IOException`

### writeInt

    public void writeInt(DataOutput out,
                         int value)

  Specified by:
    `writeInt` in interface `ExternalizableUtilStrategy`

### readInt

    public int readInt(DataInput in)

  Specified by:
    `readInt` in interface `ExternalizableUtilStrategy`

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