shz.core.cache.LocalCache Maven / Gradle / Ivy

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There is a newer version: 2024.0.2

package shz.core.cache;

import java.lang.ref.Reference;
import java.lang.ref.ReferenceQueue;
import java.lang.ref.SoftReference;
import java.lang.ref.WeakReference;
import java.util.Collection;
import java.util.function.Supplier;

abstract class LocalCache implements Cache {
    private final RefType refType;
    protected final ReferenceQueue queue;

    protected LocalCache(RefType refType, ReferenceQueue queue) {
        this.refType = refType;
        this.queue = queue;
    }

    protected final Reference getReference(V val) {
        return refType == RefType.WEAK ? new WeakReference<>(val, queue) : new SoftReference<>(val, queue);
    }

    @Override
    public final V get(K key, Supplier supplier) {
        return Cache.super.get(key, supplier);
    }

    @Override
    public final void set(K key, V val) {
        Cache.super.set(key, val);
    }

    @Override
    public final void delete(Collection keys) {
        Cache.super.delete(keys);
    }

    @Override
    public final boolean expireAt(K key, long timestamp) {
        return Cache.super.expireAt(key, timestamp);
    }
}