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Spring Batch Redis

There is a newer version: 4.0.7

package com.redis.spring.batch.util;

import java.util.Objects;
import java.util.function.IntPredicate;

public class IntRange {

    public static final String SEPARATOR = ":";

    private static final IntRange UNBOUNDED = new IntRange(Integer.MIN_VALUE, Integer.MAX_VALUE);

    private final int min;

    private final int max;

    private IntRange(int min, int max) {
        this.min = min;
        this.max = max;
    }

    public int getMin() {
        return min;
    }

    public int getMax() {
        return max;
    }

    public boolean contains(int value) {
        return value >= min && value <= max;
    }

    public IntPredicate asPredicate() {
        return this::contains;
    }

    @Override
    public int hashCode() {
        return Objects.hash(max, min);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        IntRange other = (IntRange) obj;
        return max == other.max && min == other.min;
    }

    @Override
    public String toString() {
        if (min == max) {
            return String.valueOf(min);
        }
        return min + SEPARATOR + max;
    }

    public static IntRange is(int value) {
        return new IntRange(value, value);
    }

    public static IntRange between(int min, int max) {
        return new IntRange(min, max);
    }

    public static IntRange from(int min) {
        return new IntRange(min, Integer.MAX_VALUE);
    }

    public static IntRange to(int max) {
        return new IntRange(0, max);
    }

    public static IntRange unbounded() {
        return UNBOUNDED;
    }

}