EMF Model Query Developer Guide (Galileo) - NumberAdapter (EMF Model Query Javadoc)

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org.eclipse.emf.query.conditions.numbers
Class NumberAdapter<N extends Number & Comparable<? super N>>


java.lang.Object
  
org.eclipse.emf.query.conditions.numbers.NumberAdapter<N>


Type Parameters:: N - the kind of number to which I adapt input values

All Implemented Interfaces:: IDataTypeAdapter<N>

Direct Known Subclasses:: NumberAdapter.ByteAdapter, NumberAdapter.DoubleAdapter, NumberAdapter.FloatAdapter, NumberAdapter.IntegerAdapter, NumberAdapter.LongAdapter, NumberAdapter.ShortAdapter

public class NumberAdapter<N extends Number & Comparable<? super N>>
extends Object
implements IDataTypeAdapter<N>
extends Object
implements IDataTypeAdapter<N>

An Adapter class to be used to extract from -adapt- the argument object to some numeric value that would later be used in Condition evaluation. Clients can subclass it and provide their own implementation.

Since the 1.2 release, this class is no longer abstract and can be used as a generic number adapter for all number types.

See Also:: NumberCondition

Nested Class Summary

static class NumberAdapter.ByteAdapter
          A subclass of NumberAdapter to be used to adapt an argument object to byte values Clients can either use the default implementation supplied or have their own.

static class NumberAdapter.DoubleAdapter
          A subclass of NumberAdapter to be used to adapt an argument object to double values Clients can either use the default implementation supplied or have their own.

static class NumberAdapter.FloatAdapter
          A subclass of NumberAdapter to be used to adapt an argument object to float values Clients can either use the default implementation supplied or have their own.

static class NumberAdapter.IntegerAdapter
          A subclass of NumberAdapter to be used to adapt an argument object to int values Clients can either use the default implementation supplied or have their own.

static class NumberAdapter.LongAdapter
          A subclass of NumberAdapter to be used to adapt an argument object to long values Clients can either use the default implementation supplied or have their own.

static class NumberAdapter.ShortAdapter
          A subclass of NumberAdapter to be used to adapt an argument object to short values Clients can either use the default implementation supplied or have their own.

Constructor Summary

NumberAdapter ()
          Initializes me as a default number adapter, that simply assumes that input values are of my number kind and casts them appropriately.

Method Summary

N adapt ( Object value)
          Adapts the specified input value to the type that I provide.

static <N extends Number & Comparable<? super N>> NumberAdapter<N> getDefault ()
          Obtains a default number adapter, that simply assumes that input values are of the required number kind and casts them appropriately.

Methods inherited from class java.lang. Object

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

Constructor Detail

NumberAdapter

public NumberAdapter()

Initializes me as a default number adapter, that simply assumes that input values are of my number kind and casts them appropriately.

Since:: 1.2

Method Detail

getDefault

public static <N extends 
Number & 
Comparable<? super N>> 
NumberAdapter<N> getDefault()

Obtains a default number adapter, that simply assumes that input values are of the required number kind and casts them appropriately.

Since:: 1.2

adapt

public 
N adapt(
Object value)

Description copied from interface: IDataTypeAdapter

Adapts the specified input value to the type that I provide.

Specified by:: adapt in interface IDataTypeAdapter< N extends Number & Comparable<? super N>>

Parameters:: value - the input value
Returns:: the corresponding output value