com.tangosol.coherence.rest

Class DefaultKeyConverter

java.lang.Object

com.tangosol.coherence.rest.DefaultKeyConverter

All Implemented Interfaces:

KeyConverter

public class DefaultKeyConverter
extends Object
implements KeyConverter

Default implementation of KeyConverter for a given key class.

This KeyConverter implementation uses the following rules to perform key conversion:

• toString:
  1. if the key class is java.util.Date, format the argument as yyyy-MM-dd;
  2. if the key class is UUID or UID, return a hexadecimal representation of the argument without the leading Ox;
  3. otherwise, call the toString method on the argument
• fromString:
  1. if the key class is java.util.Date, the given string needs to be formatted as yyyy-MM-dd;
  2. otherwise, look for a constructor or a static fromString, valueOf or parse method (in that order) on the key class

Author:

as 2011.06.08

Field Summary

Fields

Modifier and Type	Field and Description
protected static DateFormat	DATE_FORMAT DateFormat instance that will be used to convert Date keys.
protected Class	m_clzKey Key class.
protected Constructor	m_ctorFromString Constructor to use for conversion from string.
protected Method	m_methFromString Static method to use for conversion from string.
protected static String[]	METHODS Method names that should be tried in order when looking for a method that can be used for conversion from string.

Constructor Summary

Constructors

Constructor and Description
DefaultKeyConverter(Class clzKey) Construct a DefaultKeyConverter instance.

Method Summary

Modifier and Type	Method and Description
protected Constructor	findConstructor() Find a key class constructor that accepts a single String argument.
protected Method	findMethod(String sMethodName) Find a static method with a specified name that accepts a single String argument.
Object	fromString(String sKey) Convert a string representation of a key into its object form.
String	toString(Object oKey) Convert an object representation of a key into its string form.

Methods inherited from class java.lang.Object

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

Field Detail

m_clzKey

protected final Class m_clzKey

Key class.

m_ctorFromString

protected final Constructor m_ctorFromString

Constructor to use for conversion from string.

m_methFromString

protected final Method m_methFromString

Static method to use for conversion from string.

METHODS

protected static final String[] METHODS

Method names that should be tried in order when looking for a method that can be used for conversion from string.

DATE_FORMAT

protected static final DateFormat DATE_FORMAT

DateFormat instance that will be used to convert Date keys.

Constructor Detail

DefaultKeyConverter

public DefaultKeyConverter(Class clzKey)

Construct a DefaultKeyConverter instance.

Parameters:

clzKey - key class

Method Detail

fromString

public Object fromString(String sKey)

Convert a string representation of a key into its object form.

Specified by:

fromString in interface KeyConverter

Parameters:

sKey - key as a string

Returns:

key in its object form

toString

public String toString(Object oKey)

Convert an object representation of a key into its string form.

Specified by:

toString in interface KeyConverter

Parameters:

oKey - key in its original object form

Returns:

string representation of a key

findConstructor

protected Constructor findConstructor()

Find a key class constructor that accepts a single String argument.

Returns:

constructor if it exists, null otherwise

findMethod

protected Method findMethod(String sMethodName)

Find a static method with a specified name that accepts a single String argument.

Parameters:

sMethodName - the name of the method

Returns:

method if it exists, null otherwise