com.whaleal.icefrog.cache.impl.NoCache Maven / Gradle / Ivy

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package com.whaleal.icefrog.cache.impl;

import com.whaleal.icefrog.cache.Cache;
import com.whaleal.icefrog.core.lang.func.Func0;

import java.util.Iterator;

/**
 * 无缓存实现，用于快速关闭缓存
 *
 * @param  键类型
 * @param  值类型
 * @author Looly
 * @author wh
 */
public class NoCache implements Cache {
    private static final long serialVersionUID = 1L;

    @Override
    public int capacity() {
        return 0;
    }

    @Override
    public long timeout() {
        return 0;
    }

    @Override
    public void put( K key, V object ) {
        // 跳过
    }

    @Override
    public void put( K key, V object, long timeout ) {
        // 跳过
    }

    @Override
    public boolean containsKey( K key ) {
        return false;
    }

    @Override
    public V get( K key ) {
        return null;
    }

    @Override
    public V get( K key, boolean isUpdateLastAccess ) {
        return null;
    }

    @Override
    public V get( K key, Func0 supplier ) {
        return get(key, true, supplier);
    }

    @Override
    public V get( K key, boolean isUpdateLastAccess, Func0 supplier ) {
        try {
            return (null == supplier) ? null : supplier.apply();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    @Override
    public Iterator iterator() {
        return new Iterator() {
            @Override
            public boolean hasNext() {
                return false;
            }

            @Override
            public V next() {
                return null;
            }
        };
    }

    @Override
    public Iterator> cacheObjIterator() {
        return null;
    }

    @Override
    public int prune() {
        return 0;
    }

    @Override
    public boolean isFull() {
        return false;
    }

    @Override
    public void remove( K key ) {
        // 跳过
    }

    @Override
    public void clear() {
        // 跳过
    }

    @Override
    public int size() {
        return 0;
    }

    @Override
    public boolean isEmpty() {
        return false;
    }

}