Package com.tangosol.coherence.rest.util

Class PropertySet<T>

java.lang.Object

com.tangosol.coherence.rest.util.PropertySet<T>

All Implemented Interfaces:

CanonicallyNamed, ExternalizableLite, PortableObject, Remote.Function<T,Object>, Remote.ToDoubleFunction<T>, Remote.ToIntFunction<T>, Remote.ToLongFunction<T>, ValueExtractor<T,Object>, Serializable, Iterable<PropertySpec>, Function<T,Object>, ToDoubleFunction<T>, ToIntFunction<T>, ToLongFunction<T>

public class PropertySet<T>
extends Object
implements Iterable<PropertySpec>, ValueExtractor<T,Object>, ExternalizableLite, PortableObject

Represents a set of named properties and allows the extraction of those properties from a target object.

Each extracted property is returned as a PartialObject instance, which is an instance of a dynamically generated class containing only properties defined in this PropertySet.

Author:

as 2010.10.11

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected SortedSet<PropertySpec>	m_setProperties	Property set.

Constructor Summary

Constructors

Constructor	Description
PropertySet()	Default constructor.
PropertySet(PropertySpec... aProperties)	Construct a PropertySet instance.
PropertySet(Set<PropertySpec> setProperties)	Construct a PropertySet instance.

Method Summary

Modifier and Type	Method	Description
void	add(PropertySpec property)	Add a property to this property set.
boolean	equals(Object o)	Test equality of this object with another.
Object[]	extract(Object[] aSource)	Extract an array of partial objects.
Collection<Object>	extract(Collection<? extends T> colSource)	Extract a collection of partial objects.
Object	extract(T source)	Extract a partial object from a source object.
protected PropertySpec	first()	Return the first property in this PropertySet.
static PropertySet	fromString(String sPropertySet)	Create a PropertySet from its textual representation.
protected SortedSet<PropertySpec>	getProperties()	Return the internal property set.
int	hashCode()	Return hash code for this object.
Iterator<PropertySpec>	iterator()	Return an iterator for this property set.
void	readExternal(PofReader reader)	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()	Return string representation of this object.
void	writeExternal(PofWriter writer)	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

Methods inherited from interface java.util.function.Function

andThen, compose

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface com.tangosol.util.function.Remote.Function

andThen, compose

Methods inherited from interface com.tangosol.util.ValueExtractor

andThen, apply, applyAsDouble, applyAsInt, applyAsLong, compose, fromKey, getCanonicalName, getTarget

Field Detail

m_setProperties

protected final SortedSet<PropertySpec> m_setProperties

Property set.

Constructor Detail

PropertySet

public PropertySet()

Default constructor.

PropertySet

public PropertySet(PropertySpec... aProperties)

Construct a PropertySet instance.

Parameters:

aProperties - an array of property specifications

PropertySet

public PropertySet(Set<PropertySpec> setProperties)

Construct a PropertySet instance.

Parameters:

setProperties - a set of property specifications

Method Detail

fromString

public static PropertySet fromString(String sPropertySet)

Create a PropertySet from its textual representation.

Parameters:

sPropertySet - property set descriptor

Returns:

property set instance

add

public void add(PropertySpec property)

Add a property to this property set.

Parameters:

property - property to add

extract

public Collection<Object> extract(Collection<? extends T> colSource)

Extract a collection of partial objects.

Parameters:

colSource - collection of source objects

Returns:

a collections of partial objects extracted from a source collection based on this property set

extract

public Object[] extract(Object[] aSource)

Extract an array of partial objects.

Parameters:

aSource - an array of source objects

Returns:

an array of partial objects extracted from a source array based on this property set

extract

public Object extract(T source)

Extract a partial object from a source object.

Specified by:

extract in interface ValueExtractor<T,Object>

Parameters:

source - the source object

Returns:

partial object extracted from a source object based on this property set

iterator

public Iterator<PropertySpec> iterator()

Return an iterator for this property set.

Specified by:

iterator in interface Iterable<T>

Returns:

iterator over the set of properties

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 reader)
                  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:

reader - the PofReader from which to read the object's state

Throws:

IOException - if an I/O error occurs

writeExternal

public void writeExternal(PofWriter writer)
                   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:

writer - the PofWriter to which to write the object's state

Throws:

IOException - if an I/O error occurs

equals

public boolean equals(Object o)

Test equality of this object with another.

Specified by:

equals in interface ValueExtractor<T,Object>

Overrides:

equals in class Object

Parameters:

o - object to compare this object with

Returns:

true if this object is equal to the specified object

hashCode

public int hashCode()

Return hash code for this object.

Specified by:

hashCode in interface ValueExtractor<T,Object>

Overrides:

hashCode in class Object

Returns:

hash code

toString

public String toString()

Return string representation of this object.

Overrides:

toString in class Object

Returns:

this object as a String

first

protected PropertySpec first()

Return the first property in this PropertySet.

Returns:

first property in this PropertySet

getProperties

protected SortedSet<PropertySpec> getProperties()

Return the internal property set.

Returns:

internal property set