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Guava library extensions.

There is a newer version: 1.1.0

package com.bluecatcode.common.base;

/**
 * Single Method Interface for objects with capability of being empty
 */
public interface IsEmpty {

    /**
     * Returns true if object is "empty", it can be any of:
     * 
     * object is null
     * 
object's length or size is 0
     * 
object is "empty", as in it doesn't contain any useful data
     * 
     *
     * @return true if object is empty, otherwise false
     */
    boolean isEmpty();
}