com.prosyst.util.io

Class ExternalizableMap

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap

com.prosyst.util.io.ExternalizableMap

All Implemented Interfaces:

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

public class ExternalizableMap
extends java.util.HashMap
implements Externalizable

ExternalizableMap represents Externalizable HashMap with String keys.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

java.util.AbstractMap.SimpleEntry<K,V>, java.util.AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface java.util.Map

java.util.Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
ExternalizableMap() Constructs an empty HashMap with the default initial capacity (16) and the default load factor (0.75).
ExternalizableMap(int capacity) Constructs an empty ExternalizableMap with the specified initial capacity and the default load factor (0.75).
ExternalizableMap(int initialCapacity, float loadFactor) Constructs an empty ExternalizableMap with the specified initial capacity and load factor.
ExternalizableMap(java.util.Map map) Constructs a new ExternalizableMap with the same mappings as the specified Map.

Method Summary

Modifier and Type	Method and Description
void	readObject(java.io.InputStream is) Use this method to deserializion of object state.
java.lang.ClassLoader	setClassLoader(java.lang.ClassLoader loader) Sets the class loader used to load Externalizable objects.
void	writeObject(java.io.OutputStream os) Use this method for serialization of object state.

Methods inherited from class java.util.HashMap

clear, clone, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, forEach, get, getOrDefault, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

equals, hashCode

Constructor Detail

ExternalizableMap

public ExternalizableMap()

Constructs an empty HashMap with the default initial capacity (16) and the default load factor (0.75).

ExternalizableMap

public ExternalizableMap(int capacity)

Constructs an empty ExternalizableMap with the specified initial capacity and the default load factor (0.75).

Parameters:

initialCapacity - the initial capacity.

Throws:

java.lang.IllegalArgumentException - if the initial capacity is negative.

ExternalizableMap

public ExternalizableMap(int initialCapacity,
                         float loadFactor)

Constructs an empty ExternalizableMap with the specified initial capacity and load factor.

Parameters:

initialCapacity - The initial capacity.

loadFactor - The load factor.

Throws:

java.lang.IllegalArgumentException - if the initial capacity is negative or the load factor is nonpositive.

ExternalizableMap

public ExternalizableMap(java.util.Map map)

Constructs a new ExternalizableMap with the same mappings as the specified Map. The ExternalizableMap is created with default load factor (0.75) and an initial capacity sufficient to hold the mappings in the specified Map.

Parameters:

m - the map whose mappings are to be placed in this map.

Throws:

java.lang.NullPointerException - if the specified map is null.

Method Detail

readObject

public void readObject(java.io.InputStream is)
                throws java.lang.Exception

Description copied from interface: Externalizable

Use this method to deserializion of object state.

Specified by:

readObject in interface Externalizable

Throws:

java.lang.Exception

See Also:

Externalizable.readObject(java.io.InputStream)

writeObject

public void writeObject(java.io.OutputStream os)
                 throws java.lang.Exception

Description copied from interface: Externalizable

Use this method for serialization of object state.

Specified by:

writeObject in interface Externalizable

Throws:

java.lang.Exception

See Also:

Externalizable.writeObject(java.io.OutputStream)

setClassLoader

public java.lang.ClassLoader setClassLoader(java.lang.ClassLoader loader)

Sets the class loader used to load Externalizable objects.

Parameters:

loader - the class loader

Returns:

the old class loader or null if it wasn't set