com.cedarsoftware.util

Class Converter

java.lang.Object

com.cedarsoftware.util.Converter

public final class Converter
extends Object

Handy conversion utilities

Author:

John DeRegnaucourt ([email protected])
Copyright (c) Cedar Software LLC

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Constructor Summary

Constructors

Constructor and Description
Converter()

Method Summary

Methods

Modifier and Type	Method and Description
static Object	convert(Object fromInstance, Class toType) Turn the passed in value to the class indicated.

Methods inherited from class java.lang.Object

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

Constructor Detail

Converter

public Converter()

Method Detail

convert

public static Object convert(Object fromInstance,
             Class toType)

Turn the passed in value to the class indicated. This will allow, for example, a String value to be passed in and have it coerced to a Long.

     Examples:
     Long x = convert("35", Long.class);
     Date d = convert("2015/01/01", Date.class)
     int y = convert(45.0, int.class)
     String date = convert(date, String.class)
     String date = convert(calendar, String.class)
     Short t = convert(true, short.class);     // returns (short) 1 or  (short) 0
     Long date = convert(calendar, long.class); // get calendar's time into long
 

Parameters:

fromInstance - A value used to create the targetType, even though it may not (most likely will not) be the same data type as the targetType

toType - Class which indicates the targeted (final) data type. Please note that in addition to the 8 Java primitives, the targeted class can also be Date.class, String.class, BigInteger.class, and BigDecimal.class. The primitive class can be either primitive class or primitive wrapper class, however, the returned value will always [obviously] be a primitive wrapper.

Returns:

An instanceof targetType class, based upon the value passed in.