AbstractMapEntry (Esper Common API Documentation)

java.lang.Object

com.espertech.esper.common.internal.collection.apachecommons.AbstractKeyValue

com.espertech.esper.common.internal.collection.apachecommons.AbstractMapEntry

All Implemented Interfaces:: KeyValue, Map.Entry

Direct Known Subclasses:: DefaultMapEntry

public abstract class AbstractMapEntry extends AbstractKeyValue implements Map.Entry

Abstract Pair class to assist with creating correct Map.Entry implementations.

Since:: Commons Collections 3.0
Version:: $Revision$ $Date$
Author:: James Strachan, Michael A. Smith, Neil O'Toole, Stephen Colebourne

Field Summary

Fields inherited from class com.espertech.esper.common.internal.collection.apachecommons.AbstractKeyValue
key, value
Constructor Summary

Constructors

Modifier

Constructor

Description

protected

AbstractMapEntry(Object key, Object value)

Constructs a new entry with the given key and given value.
Method Summary

Modifier and Type

Method

Description

boolean

equals(Object obj)

Compares this Map.Entry with another Map.Entry.

int

hashCode()

Gets a hashCode compatible with the equals method.

Object

setValue(Object value)

Sets the value stored in this Map.Entry.

Methods inherited from class com.espertech.esper.common.internal.collection.apachecommons.AbstractKeyValue
getKey, getValue, toString

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map.Entry
getKey, getValue

Constructor Details
- AbstractMapEntry
  
  protected AbstractMapEntry(Object key, Object value)
  
  Constructs a new entry with the given key and given value.
  
  Parameters:
  
  key - the key for the entry, may be null
  
  value - the value for the entry, may be null
Method Details
- setValue
  
  public Object setValue(Object value)
  
  Sets the value stored in this Map.Entry.
  This Map.Entry is not connected to a Map, so only the local data is changed.
  
  Specified by:
  
  setValue in interface Map.Entry
  
  Parameters:
  
  value - the new value
  
  Returns:
  
  the previous value
- equals
  
  public boolean equals(Object obj)
  
  Compares this Map.Entry with another Map.Entry.
  Implemented per API documentation of Map.Entry.equals(Object)
  
  Specified by:
  
  equals in interface Map.Entry
  
  Overrides:
  
  equals in class Object
  
  Parameters:
  
  obj - the object to compare to
  
  Returns:
  
  true if equal key and value
- hashCode
  
  public int hashCode()
  
  Gets a hashCode compatible with the equals method.
  Implemented per API documentation of Map.Entry.hashCode()
  
  Specified by:
  
  hashCode in interface Map.Entry
  
  Overrides:
  
  hashCode in class Object
  
  Returns:
  
  a suitable hash code