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Oracle® Coherence Java API Reference
v3.5.3
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## com.tangosol.util
Class ConverterCollections.ConverterMapEvent.ConverterMapEventEntry

    java.lang.Object
      com.tangosol.util.ConverterCollections.ConverterMapEvent.ConverterMapEventEntry

All Implemented Interfaces:
  BinaryEntry, InvocableMap.Entry, QueryMap.Entry, java.util.Map.Entry

Enclosing class:
  ConverterCollections.ConverterMapEvent

    protected class ConverterCollections.ConverterMapEvent.ConverterMapEventEntry

extends java.lang.Object
implements BinaryEntry

ConverterMapEventEntry provides both the Map Entry and the BinaryEntry interface to the information encapsulated inside the ConvertMapEvent.

Field Summary
`protected boolean` | `m_fNewValue` Determines whether this entry represents the old or new value.

Constructor Summary
`ConverterCollections.ConverterMapEvent.ConverterMapEventEntry(boolean fNewValue)` Constructor.

Method Summary
`java.lang.Object` | `extract(ValueExtractor extractor)` Depending upon the type of the ValueExtractor route the call to the appropriate extract method.
`Binary` | `getBinaryKey()` Return a raw binary key for this entry.
`Binary` | `getBinaryValue()` Return a raw binary value for this entry.
`BackingMapManagerContext` | `getContext()` Return the context this entry operates within.
`java.lang.Object` | `getKey()` Return the key corresponding to this entry.
`Serializer` | `getSerializer()` Return a `Serializer` that is used to serialize/deserialize this entry.
`java.lang.Object` | `getValue()` Return the value corresponding to this entry.
`boolean` | `isPresent()` Determine if this Entry exists in the Map.
`void` | `remove(boolean fSynthetic)` Remove this Entry from the Map if it is present in the Map.
`java.lang.Object` | `setValue(java.lang.Object oValue)` Store the value corresponding to this entry.
`void` | `setValue(java.lang.Object oValue, boolean fSynthetic)` Store the value corresponding to this entry.
`void` | `update(ValueUpdater updater, java.lang.Object oValue)` Update the Entry's value.
`void` | `updateBinaryValue(Binary binValue)` Update the binary value for this entry.

Methods inherited from interface java.util.Map.Entry
`equals, hashCode`

Field Detail

### m_fNewValue

    protected boolean m_fNewValue

  Determines whether this entry represents the old or new value.

Constructor Detail

### ConverterCollections.ConverterMapEvent.ConverterMapEventEntry

    public ConverterCollections.ConverterMapEvent.ConverterMapEventEntry(boolean fNewValue)

  Constructor.

  Parameters:
    `fNewValue` - specifies whether the value represented by this entry is the new or the old value

Method Detail

### getKey

    public java.lang.Object getKey()

  Return the key corresponding to this entry. The resultant key does not necessarily exist within the containing Map, which is to say that `InvocableMap.this.containsKey(getKey())` could return false. To test for the presence of this key within the Map, use `InvocableMap.Entry.isPresent()`, and to create the entry for the key, use `InvocableMap.Entry.setValue(java.lang.Object)`.

  Specified by:
    `getKey` in interface `InvocableMap.Entry`
  Specified by:
    `getKey` in interface `java.util.Map.Entry`
  Returns:
    the key corresponding to this entry; may be null if the underlying Map supports null keys

### getValue

    public java.lang.Object getValue()

  Return the value corresponding to this entry. If the entry does not exist, then the value will be null. To differentiate between a null value and a non-existent entry, use `InvocableMap.Entry.isPresent()`.

  Note: any modifications to the value retrieved using this method are not guaranteed to persist unless followed by a `InvocableMap.Entry.setValue(java.lang.Object)` or `InvocableMap.Entry.update(com.tangosol.util.ValueUpdater, java.lang.Object)` call.

  Specified by:
    `getValue` in interface `InvocableMap.Entry`
  Specified by:
    `getValue` in interface `java.util.Map.Entry`
  Returns:
    the value corresponding to this entry; may be null if the value is null or if the Entry does not exist in the Map

### setValue

    public java.lang.Object setValue(java.lang.Object oValue)

  Store the value corresponding to this entry. If the entry does not exist, then the entry will be created by invoking this method, even with a null value (assuming the Map supports null values).

  Specified by:
    `setValue` in interface `InvocableMap.Entry`
  Specified by:
    `setValue` in interface `java.util.Map.Entry`
  Parameters:
    `oValue` - the new value for this Entry
  Returns:
    the previous value of this Entry, or null if the Entry did not exist

### isPresent

    public boolean isPresent()

  Determine if this Entry exists in the Map. If the Entry is not present, it can be created by calling `InvocableMap.Entry.setValue(java.lang.Object)` or `InvocableMap.Entry.setValue(java.lang.Object)`. If the Entry is present, it can be destroyed by calling `InvocableMap.Entry.remove(boolean)`.

  Specified by:
    `isPresent` in interface `InvocableMap.Entry`
  Returns:
    true iff this Entry is existent in the containing Map

### remove

    public void remove(boolean fSynthetic)

  Remove this Entry from the Map if it is present in the Map.

  This method supports both the operation corresponding to `Map.remove(java.lang.Object)` as well as synthetic operations such as eviction. If the containing Map does not differentiate between the two, then this method will always be identical to `InvocableMap.this.remove(getKey())`.

  Specified by:
    `remove` in interface `InvocableMap.Entry`
  Parameters:
    `fSynthetic` - pass true only if the removal from the Map should be treated as a synthetic event

### setValue

    public void setValue(java.lang.Object oValue,
                         boolean fSynthetic)

  Store the value corresponding to this entry. If the entry does not exist, then the entry will be created by invoking this method, even with a null value (assuming the Map supports null values).

  Unlike the other form of `setValue`, this form does not return the previous value, and as a result may be significantly less expensive (in terms of cost of execution) for certain Map implementations.

  Specified by:
    `setValue` in interface `InvocableMap.Entry`
  Parameters:
    `oValue` - the new value for this Entry
    `fSynthetic` - pass true only if the insertion into or modification of the Map should be treated as a synthetic event

### update

    public void update(ValueUpdater updater,
                       java.lang.Object oValue)

  Update the Entry's value. Calling this method is semantically equivalent to:

         Object oTarget = entry.getValue();
         updater.update(oTarget, oValue);
         entry.setValue(oTarget, false);

  The benefit of using this method is that it may allow the Entry implementation to significantly optimize the operation, such as for purposes of delta updates and backup maintenance.

  Specified by:
    `update` in interface `InvocableMap.Entry`
  Parameters:
    `updater` - a ValueUpdater used to modify the Entry's value
    `oValue` - the new value for this Entry

### extract

    public java.lang.Object extract(ValueExtractor extractor)

  Depending upon the type of the ValueExtractor route the call to the appropriate extract method.

  Specified by:
    `extract` in interface `QueryMap.Entry`
  Parameters:
    `extractor` - the ValueExtractor to pass this Entry or value.
  Returns:
    the extracted value.

### getBinaryKey

    public Binary getBinaryKey()

  Return a raw binary key for this entry.

  Specified by:
    `getBinaryKey` in interface `BinaryEntry`
  Returns:
    a raw binary key for this entry

### getBinaryValue

    public Binary getBinaryValue()

  Return a raw binary value for this entry.

  Specified by:
    `getBinaryValue` in interface `BinaryEntry`
  Returns:
    a raw binary value for this entry

### getContext

    public BackingMapManagerContext getContext()

  Return the context this entry operates within.

  Specified by:
    `getContext` in interface `BinaryEntry`
  Returns:
    the BackingMapManagerContext for this entry

### getSerializer

    public Serializer getSerializer()

  Return a `Serializer` that is used to serialize/deserialize this entry.

  Specified by:
    `getSerializer` in interface `BinaryEntry`
  Returns:
    a `Serializer` that is used to serialize/deserialize this entry

### updateBinaryValue

    public void updateBinaryValue(Binary binValue)

  Update the binary value for this entry.

  Passing a non-null binary is functionally equivalent to:

         setValue(getContext().getValueFromInternalConverter().convert(binValue));

  Passing null value is functionally equivalent to removing the entry.

         remove(false);

  Specified by:
    `updateBinaryValue` in interface `BinaryEntry`
  Parameters:
    `binValue` - a raw binary value to for this entry or null

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Oracle® Coherence Java API Reference
v3.5.3
E15583-01
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