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Oracle® Coherence Java API Reference Release 3.6.0.0 E15725-01 |
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java.lang.Object
com.tangosol.util.Base
com.tangosol.util.BitHelper
com.tangosol.util.ExternalizableHelper
com.tangosol.util.transformer.SemiLiteEventTransformer
public class SemiLiteEventTransformer
SemiLiteEventTransformer is a special purpose MapEventTransformer implementation that removes an OldValue from the MapEvent object for the purpose of reducing the amount of data that has to be sent over the network to event consumers. <p/> Usage example:
cache.addMapListener(listener, new MapEventTransformerFilter(null, SemiLiteEventTransformer.INSTANCE), false);
Field Summary | |
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static SemiLiteEventTransformer |
INSTANCE The SemiLiteEventTransformer singleton. |
Constructor Summary | |
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SemiLiteEventTransformer() No-argument constructor for lite deserialization. |
Method Summary | |
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boolean |
equals(Object o) Compare the SemiLiteEventTransformer with another object to determine equality. |
int |
hashCode() Determine a hash value for the SemiLiteEventTransformer object according to the general Object.hashCode() contract. |
void |
readExternal(DataInput in) Restore the contents of this object by loading the object's state from the passed DataInput object. |
void |
readExternal(PofReader in) Restore the contents of a user type instance by reading its state using the specified PofReader object. |
String |
toString() Provide a human-readable representation of this object. |
MapEvent |
transform(MapEvent event) Remove an old value from the specified MapEvent. |
void |
writeExternal(DataOutput out) Save the contents of this object by storing the object's state into the passed DataOutput object. |
void |
writeExternal(PofWriter out) Save the contents of a POF user type instance by writing its state using the specified PofWriter object. |
Methods inherited from class com.tangosol.util.BitHelper |
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countBits, countBits, countBits, indexOfLSB, indexOfLSB, indexOfLSB, indexOfMSB, indexOfMSB, indexOfMSB, rotateLeft, rotateLeft, rotateLeft, rotateRight, rotateRight, rotateRight, toBitString, toBitString, toBitString |
Field Detail |
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public static final SemiLiteEventTransformer INSTANCE
Constructor Detail |
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public SemiLiteEventTransformer()
Method Detail |
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public MapEvent transform(MapEvent event)
transform
in interface MapEventTransformer
event
- the original MapEvent objectpublic void readExternal(DataInput in) throws IOException
readExternal
in interface ExternalizableLite
in
- the DataInput stream to read data from in order to restore the state of this objectIOException
- if an I/O exception occursNotActiveException
- if the object is not in its initial state, and therefore cannot be deserialized intopublic void writeExternal(DataOutput out) throws IOException
writeExternal
in interface ExternalizableLite
out
- the DataOutput stream to write the state of this object toIOException
- if an I/O exception occurspublic void readExternal(PofReader in) throws IOException
readExternal
in interface PortableObject
in
- the PofReader from which to read the object's stateIOException
- if an I/O error occurspublic void writeExternal(PofWriter out) throws IOException
writeExternal
in interface PortableObject
out
- the PofWriter to which to write the object's stateIOException
- if an I/O error occurspublic boolean equals(Object o)
public int hashCode()
Object.hashCode()
contract.public String toString()
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Oracle® Coherence Java API Reference Release 3.6.0.0 E15725-01 |
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