Package com.tangosol.coherence.rest.util

Class MvelManipulator

java.lang.Object

com.tangosol.coherence.rest.util.MvelManipulator

All Implemented Interfaces:

ExternalizableLite, PortableObject, ValueManipulator, Serializable

public class MvelManipulator
extends Object
implements ValueManipulator, ExternalizableLite, PortableObject

MVEL-based ValueManipulator implementation.

Author:

ic 2011.07.14

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected ValueExtractor	m_extractor	The underlying ValueExtractor.
protected String	m_sExpr	The MVEL expression to evaluate.
protected ValueUpdater	m_updater	The underlying ValueUpdater.

Constructor Summary

Constructors

Constructor	Description
MvelManipulator()	Default constructor (necessary for the ExternalizableLite and PortableObject interfaces).
MvelManipulator(String sExpr)	Construct a MvelManipulator based on an MVEL expression.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)	Compare the MvelManipulator with another object to determine equality.
ValueExtractor	getExtractor()	Retrieve the underlying ValueExtractor reference.
ValueUpdater	getUpdater()	Retrieve the underlying ValueUpdater reference.
int	hashCode()	Determine a hash value for the MvelManipulator object according to the general Object.hashCode() contract.
void	readExternal(PofReader in)	Restore the contents of a user type instance by reading its state using the specified PofReader object.
void	readExternal(DataInput in)	Restore the contents of this object by loading the object's state from the passed DataInput object.
String	toString()	Provide a human-readable description of this MvelManipulator object.
void	writeExternal(PofWriter out)	Save the contents of a POF user type instance by writing its state using the specified PofWriter object.
void	writeExternal(DataOutput out)	Save the contents of this object by storing the object's state into the passed DataOutput object.

Methods inherited from class java.lang.Object

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

Field Detail

m_sExpr

protected String m_sExpr

The MVEL expression to evaluate.

m_extractor

protected transient ValueExtractor m_extractor

The underlying ValueExtractor.

m_updater

protected transient ValueUpdater m_updater

The underlying ValueUpdater.

Constructor Detail

MvelManipulator

public MvelManipulator()

Default constructor (necessary for the ExternalizableLite and PortableObject interfaces).

MvelManipulator

public MvelManipulator(String sExpr)

Construct a MvelManipulator based on an MVEL expression.

Parameters:

sExpr - the MVEL expression to evaluate

Method Detail

getExtractor

public ValueExtractor getExtractor()

Retrieve the underlying ValueExtractor reference.

Specified by:

getExtractor in interface ValueManipulator

Returns:

the ValueExtractor

getUpdater

public ValueUpdater getUpdater()

Retrieve the underlying ValueUpdater reference.

Specified by:

getUpdater in interface ValueManipulator

Returns:

the ValueUpdater

equals

public boolean equals(Object o)

Compare the MvelManipulator with another object to determine equality.

Overrides:

equals in class Object

Returns:

true iff this MvelManipulator and the passed object are equivalent MvelManipulators

hashCode

public int hashCode()

Determine a hash value for the MvelManipulator object according to the general Object.hashCode() contract.

Overrides:

hashCode in class Object

Returns:

an integer hash value for this MvelManipulator object

toString

public String toString()

Provide a human-readable description of this MvelManipulator object.

Overrides:

toString in class Object

Returns:

a human-readable description of this MvelManipulator object

readExternal

public void readExternal(DataInput in)
                  throws 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:

IOException - if an I/O exception occurs

NotActiveException - if the object is not in its initial state, and therefore cannot be deserialized into

writeExternal

public void writeExternal(DataOutput out)
                   throws 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:

IOException - if an I/O exception occurs

readExternal

public void readExternal(PofReader in)
                  throws 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:

IOException - if an I/O error occurs

writeExternal

public void writeExternal(PofWriter out)
                   throws 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:

IOException - if an I/O error occurs