com.g2forge.alexandria.java.function.cache.FixedCachingSupplier Maven / Gradle / Ivy

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Standard Java library and the basis of the ${alexandria.name} project.

There is a newer version: 0.0.18

package com.g2forge.alexandria.java.function.cache;

import java.util.function.Supplier;

public class FixedCachingSupplier implements Supplier {
	/** The supplier to cache. Set to null after use to indicate that we already have the result. */
	protected Supplier supplier;

	protected T value;

	public FixedCachingSupplier(Supplier supplier) {
		this.supplier = supplier;
		this.value = null;
	}

	@Override
	public T get() {
		if (supplier != null) {
			value = supplier.get();
			supplier = null;
		}
		return value;
	}

}