org.apache.commons.jxpath.util

Class BasicTypeConverter

java.lang.Object

org.apache.commons.jxpath.util.BasicTypeConverter

All Implemented Interfaces:

TypeConverter

Direct Known Subclasses:

JXPath11CompatibleTypeConverter

public class BasicTypeConverter
extends java.lang.Object
implements TypeConverter

The default implementation of TypeConverter.

Version:

$Revision: 670727 $ $Date: 2008-06-23 15:10:38 -0500 (Mon, 23 Jun 2008) $

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
(package private) static class	BasicTypeConverter.ValueNodeSet NodeSet implementation
(package private) static class	BasicTypeConverter.ValuePointer Value pointer

Constructor Summary

Constructors

Constructor and Description
BasicTypeConverter()

Method Summary

Modifier and Type	Method and Description
protected java.util.Collection	allocateCollection(java.lang.Class type) Create a collection of a given type.
protected java.lang.Number	allocateNumber(java.lang.Class type, double value) Allocate a number of a given type and value.
boolean	canConvert(java.lang.Object object, java.lang.Class toType) Returns true if it can convert the supplied object to the specified class.
protected boolean	canCreateCollection(java.lang.Class type) Learn whether this BasicTypeConverter can create a collection of the specified type.
java.lang.Object	convert(java.lang.Object object, java.lang.Class toType) Converts the supplied object to the specified type.
protected java.lang.Object	convertNullToPrimitive(java.lang.Class toType) Convert null to a primitive type.
protected java.lang.Object	convertStringToPrimitive(java.lang.Object object, java.lang.Class toType) Convert a string to a primitive type.
protected java.util.Collection	unmodifiableCollection(java.util.Collection collection) Get an unmodifiable version of a collection.

Methods inherited from class java.lang.Object

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

Constructor Detail

BasicTypeConverter

public BasicTypeConverter()

Method Detail

canConvert

public boolean canConvert(java.lang.Object object,
                          java.lang.Class toType)

Returns true if it can convert the supplied object to the specified class.

Specified by:

canConvert in interface TypeConverter

Parameters:

object - to check

toType - prospective destination class

Returns:

boolean

convert

public java.lang.Object convert(java.lang.Object object,
                                java.lang.Class toType)

Converts the supplied object to the specified type. Throws a runtime exception if the conversion is not possible.

Specified by:

convert in interface TypeConverter

Parameters:

object - to convert

toType - destination class

Returns:

converted object

convertNullToPrimitive

protected java.lang.Object convertNullToPrimitive(java.lang.Class toType)

Convert null to a primitive type.

Parameters:

toType - destination class

Returns:

a wrapper

convertStringToPrimitive

protected java.lang.Object convertStringToPrimitive(java.lang.Object object,
                                                    java.lang.Class toType)

Convert a string to a primitive type.

Parameters:

object - String

toType - destination class

Returns:

wrapper

allocateNumber

protected java.lang.Number allocateNumber(java.lang.Class type,
                                          double value)

Allocate a number of a given type and value.

Parameters:

type - destination class

value - double

Returns:

Number

canCreateCollection

protected boolean canCreateCollection(java.lang.Class type)

Learn whether this BasicTypeConverter can create a collection of the specified type.

Parameters:

type - prospective destination class

Returns:

boolean

allocateCollection

protected java.util.Collection allocateCollection(java.lang.Class type)

Create a collection of a given type.

Parameters:

type - destination class

Returns:

Collection

unmodifiableCollection

protected java.util.Collection unmodifiableCollection(java.util.Collection collection)

Get an unmodifiable version of a collection.

Parameters:

collection - to wrap

Returns:

Collection