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Oracle® Coherence Java API Reference
Release 3.6.1.0

E18814-01


com.tangosol.util.extractor
Class ReflectionUpdater

java.lang.Object
  extended by com.tangosol.util.Base
      extended by com.tangosol.util.BitHelper
          extended by com.tangosol.util.ExternalizableHelper
              extended by com.tangosol.util.extractor.AbstractUpdater
                  extended by com.tangosol.util.extractor.ReflectionUpdater

All Implemented Interfaces:
ExternalizableLite, PortableObject, ValueUpdater, java.io.Serializable

public class ReflectionUpdater
extends AbstractUpdater
implements ExternalizableLite, PortableObject

Reflection-based ValueUpdater implementation.

Author:
gg 2005.10.27
See Also:
CompositeUpdater

Field Summary
protected  java.lang.String m_sMethod
          The name of the method to invoke.

 

Constructor Summary
ReflectionUpdater()
          Default constructor (necessary for the ExternalizableLite interface).
ReflectionUpdater(java.lang.String sMethod)
          Construct a ReflectionUpdater for a given method name.

 

Method Summary
 boolean equals(java.lang.Object o)
          Compare the ReflectionUpdater with another object to determine equality.
 java.lang.String getMethodName()
          Determine the name of the method that this extractor is configured to invoke.
 int hashCode()
          Determine a hash value for the ReflectionUpdater object according to the general Object.hashCode() contract.
 void readExternal(java.io.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.
 java.lang.String toString()
          Provide a human-readable description of this ValueUpdater object.
 void update(java.lang.Object oTarget, java.lang.Object oValue)
          Update the state of the passed target object using the passed value. For intrinsic types, the specified value is expected to be a standard wrapper type in the same manner that reflection works; for example, an int value would be passed as a java.lang.Integer.
 void writeExternal(java.io.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.extractor.AbstractUpdater
updateEntry

 

Methods inherited from class com.tangosol.util.BitHelper
countBits, countBits, countBits, indexOfLSB, indexOfLSB, indexOfLSB, indexOfMSB, indexOfMSB, indexOfMSB, rotateLeft, rotateLeft, rotateLeft, rotateRight, rotateRight, rotateRight, toBitString, toBitString, toBitString

 

Field Detail

m_sMethod

protected java.lang.String m_sMethod
The name of the method to invoke.

Constructor Detail

ReflectionUpdater

public ReflectionUpdater()
Default constructor (necessary for the ExternalizableLite interface).

ReflectionUpdater

public ReflectionUpdater(java.lang.String sMethod)
Construct a ReflectionUpdater for a given method name. This implementation assumes that the corresponding classes will have one and only one method with a specified name and this method will have exactly one parameter.
Parameters:
sMethod - the name of the method to invoke via reflection

Method Detail

update

public void update(java.lang.Object oTarget,
                   java.lang.Object oValue)
Update the state of the passed target object using the passed value. For intrinsic types, the specified value is expected to be a standard wrapper type in the same manner that reflection works; for example, an int value would be passed as a java.lang.Integer.
Specified by:
update in interface ValueUpdater
Overrides:
update in class AbstractUpdater
Parameters:
oTarget - the Object to update the state of
oValue - the new value to update the state with

getMethodName

public java.lang.String getMethodName()
Determine the name of the method that this extractor is configured to invoke.
Returns:
the name of the method to invoke using reflection

equals

public boolean equals(java.lang.Object o)
Compare the ReflectionUpdater with another object to determine equality.
Returns:
true iff this ReflectionUpdater and the passed object are equivalent ReflectionUpdaters

hashCode

public int hashCode()
Determine a hash value for the ReflectionUpdater object according to the general Object.hashCode() contract.
Returns:
an integer hash value for this ReflectionUpdater object

toString

public java.lang.String toString()
Provide a human-readable description of this ValueUpdater object.
Returns:
a human-readable description of this ValueUpdater object

readExternal

public void readExternal(java.io.DataInput in)
                  throws java.io.IOException
Restore the contents of this object by loading the object's state from the passed DataInput object.
Specified by:
readExternal in interface ExternalizableLite
Parameters:
in - the DataInput stream to read data from in order to restore the state of this object
Throws:
java.io.IOException - if an I/O exception occurs
java.io.NotActiveException - if the object is not in its initial state, and therefore cannot be deserialized into

writeExternal

public void writeExternal(java.io.DataOutput out)
                   throws java.io.IOException
Save the contents of this object by storing the object's state into the passed DataOutput object.
Specified by:
writeExternal in interface ExternalizableLite
Parameters:
out - the DataOutput stream to write the state of this object to
Throws:
java.io.IOException - if an I/O exception occurs

readExternal

public void readExternal(PofReader in)
                  throws java.io.IOException
Restore the contents of a user type instance by reading its state using the specified PofReader object.
Specified by:
readExternal in interface PortableObject
Parameters:
in - the PofReader from which to read the object's state
Throws:
java.io.IOException - if an I/O error occurs

writeExternal

public void writeExternal(PofWriter out)
                   throws java.io.IOException
Save the contents of a POF user type instance by writing its state using the specified PofWriter object.
Specified by:
writeExternal in interface PortableObject
Parameters:
out - the PofWriter to which to write the object's state
Throws:
java.io.IOException - if an I/O error occurs

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Oracle® Coherence Java API Reference
Release 3.6.1.0

E18814-01


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