com.hazelcast.query.impl

Class CompositeConverter

java.lang.Object

com.hazelcast.query.impl.CompositeConverter

All Implemented Interfaces:

TypeConverter

public class CompositeConverter
extends Object
implements TypeConverter

Represents a composite converter composed out of a converter tuple. Used while converting CompositeValues for the purpose of querying and storing.

A composite converter may be marked as transient if at least one of its component converters is resolved to NULL_CONVERTER. That null converter set for a certain component indicates that there are only null values present in the index for the corresponding attribute and therefore the actual attribute type is not resolved yet.

Constructor Summary

Constructors

Constructor and Description
CompositeConverter(TypeConverter[] converters) Constructs a new composite converter from the given component converters.

Method Summary

Modifier and Type	Method and Description
Comparable	convert(Comparable value) Compares a Comparable typed value to another one.
TypeConverter	getComponentConverter(int component)
boolean	isTransient()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CompositeConverter

public CompositeConverter(TypeConverter[] converters)

Constructs a new composite converter from the given component converters.

For performance reasons, the ownership of the passed converters array is transferred to the new composite converter instance.

Parameters:

converters - the component converters.

Method Detail

isTransient

public boolean isTransient()

Returns:

true if this composite converter instance contains unresolved component converters, false if all component converters are resolved.

getComponentConverter

public TypeConverter getComponentConverter(int component)

Returns:

the converter for the given component.

convert

public Comparable convert(Comparable value)

Description copied from interface: TypeConverter

Compares a Comparable typed value to another one. Since TypeConverters are not statically typed itself the developer needs to take care of correct usage of input and output types.

Specified by:

convert in interface TypeConverter

Parameters:

value - the value to be converted

Returns:

the converted value