com.phloc.commons.format.IFormatter Maven / Gradle / Ivy
/**
* Copyright (C) 2006-2015 phloc systems
* http://www.phloc.com
* office[at]phloc[dot]com
*
* 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.
*/
package com.phloc.commons.format;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
/**
* A simple formatter interface that may be used to format arbitrary objects to
* a string.
*
* @author Philip Helger
*/
public interface IFormatter
{
/**
* Convert the passed value to a formatted string according to the pattern.
*
* @param aValue
* The source value to be formatted. May be null.
* @return The formatted string. Never null.
* @throws IllegalArgumentException
* if the formatter does not understand the object
*/
@Nonnull
String getFormattedValue (@Nullable Object aValue);
}