本文整理汇总了Java中java.util.function.LongToIntFunction类的典型用法代码示例。如果您正苦于以下问题：Java LongToIntFunction类的具体用法？Java LongToIntFunction怎么用？Java LongToIntFunction使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
LongToIntFunction类属于java.util.function包，在下文中一共展示了LongToIntFunction类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: mapToInt
import java.util.function.LongToIntFunction; //导入依赖的package包/类
@Override
public final IntStream mapToInt(LongToIntFunction mapper) {
Objects.requireNonNull(mapper);
return new IntPipeline.StatelessOp<Long>(this, StreamShape.LONG_VALUE,
StreamOpFlag.NOT_SORTED | StreamOpFlag.NOT_DISTINCT) {
@Override
Sink<Long> opWrapSink(int flags, Sink<Integer> sink) {
return new Sink.ChainedLong<Integer>(sink) {
@Override
public void accept(long t) {
downstream.accept(mapper.applyAsInt(t));
}
};
}
};
}
示例2: shouldRequireNonNullCache
import java.util.function.LongToIntFunction; //导入依赖的package包/类
/**
*
*/
@Test
@SuppressWarnings(CompilerWarnings.UNUSED)
public void shouldRequireNonNullCache() {
// given
final ConcurrentMap<Long, Integer> cache = null;
final LongToIntFunction function = input -> 123;
final LongFunction<Long> keyFunction = Long::valueOf;
// when
thrown.expect(NullPointerException.class);
thrown.expectMessage("Provide an empty map instead of NULL.");
// then
new ConcurrentMapBasedLongToIntFunctionMemoizer<>(cache, keyFunction, function);
}
开发者ID:sebhoss，项目名称:memoization.java，代码行数:19，代码来源:ConcurrentMapBasedLongToIntFunctionMemoizerTest.java
示例3: shouldRequireNonNullFunction
import java.util.function.LongToIntFunction; //导入依赖的package包/类
/**
*
*/
@Test
@SuppressWarnings(CompilerWarnings.UNUSED)
public void shouldRequireNonNullFunction() {
// given
final ConcurrentMap<Long, Integer> cache = new ConcurrentHashMap<>();
final LongToIntFunction function = null;
final LongFunction<Long> keyFunction = Long::valueOf;
// when
thrown.expect(NullPointerException.class);
thrown.expectMessage(
"Cannot memoize a NULL LongToIntFunction - provide an actual LongToIntFunction to fix this.");
// then
new ConcurrentMapBasedLongToIntFunctionMemoizer<>(cache, keyFunction, function);
}
开发者ID:sebhoss，项目名称:memoization.java，代码行数:20，代码来源:ConcurrentMapBasedLongToIntFunctionMemoizerTest.java
示例4: shouldUseSetCacheKeyAndValue
import java.util.function.LongToIntFunction; //导入依赖的package包/类
/**
*
*/
@Test
public void shouldUseSetCacheKeyAndValue() {
// given
final ConcurrentMap<Long, Integer> cache = new ConcurrentHashMap<>();
final LongToIntFunction function = input -> 123;
final LongFunction<Long> keyFunction = Long::valueOf;
// when
final ConcurrentMapBasedLongToIntFunctionMemoizer<Long> memoizer = new ConcurrentMapBasedLongToIntFunctionMemoizer<>(
cache, keyFunction, function);
// then
memoizer.applyAsInt(123L);
Assert.assertFalse("Cache is still empty after memoization", memoizer.viewCacheForTest().isEmpty());
Assert.assertEquals("Memoization key does not match expectations", 123L,
memoizer.viewCacheForTest().keySet().iterator().next().longValue());
Assert.assertEquals("Memoization value does not match expectations", 123,
memoizer.viewCacheForTest().values().iterator().next().intValue());
}
开发者ID:sebhoss，项目名称:memoization.java，代码行数:23，代码来源:ConcurrentMapBasedLongToIntFunctionMemoizerTest.java
示例5: shouldUseCallWrappedFunction
import java.util.function.LongToIntFunction; //导入依赖的package包/类
/**
*
*/
@Test
public void shouldUseCallWrappedFunction() {
// given
final ConcurrentMap<Long, Integer> cache = new ConcurrentHashMap<>();
final LongToIntFunction function = Mockito.mock(LongToIntFunction.class);
final LongFunction<Long> keyFunction = Long::valueOf;
// when
final ConcurrentMapBasedLongToIntFunctionMemoizer<Long> memoizer = new ConcurrentMapBasedLongToIntFunctionMemoizer<>(
cache, keyFunction, function);
// then
memoizer.applyAsInt(123L);
Mockito.verify(function).applyAsInt(123L);
}
开发者ID:sebhoss，项目名称:memoization.java，代码行数:19，代码来源:ConcurrentMapBasedLongToIntFunctionMemoizerTest.java
示例6: shouldMemoizeLongToIntFunctionWithKeyFunction
import java.util.function.LongToIntFunction; //导入依赖的package包/类
/**
*
*/
@Test
public void shouldMemoizeLongToIntFunctionWithKeyFunction() {
// given
final LongToIntFunction function = a -> 123;
final LongFunction<String> keyFunction = a -> "key";
// when
final LongToIntFunction memoize = CaffeineMemoize.longToIntFunction(function, keyFunction);
// then
Assert.assertNotNull("Memoized LongToIntFunction is NULL", memoize);
}
示例7: shouldMemoizeLongToIntFunction
import java.util.function.LongToIntFunction; //导入依赖的package包/类
/**
*
*/
@Test
public void shouldMemoizeLongToIntFunction() {
// given
final LongToIntFunction function = a -> 123;
// when
final LongToIntFunction memoize = CaffeineMemoize.longToIntFunction(function);
// then
Assert.assertNotNull("Memoized LongToIntFunction is NULL", memoize);
}
示例8: shouldMemoizeLongToIntFunctionWithLambda
import java.util.function.LongToIntFunction; //导入依赖的package包/类
/**
*
*/
@Test
public void shouldMemoizeLongToIntFunctionWithLambda() {
// given
// when
final LongToIntFunction memoize = CaffeineMemoize.longToIntFunction(a -> 123);
// then
Assert.assertNotNull("Memoized LongToIntFunction is NULL", memoize);
}
示例9: GuavaCacheBasedLongToIntFunctionMemoizer
import java.util.function.LongToIntFunction; //导入依赖的package包/类
GuavaCacheBasedLongToIntFunctionMemoizer(
final Cache<KEY, Integer> cache,
final LongFunction<KEY> keyFunction,
final LongToIntFunction function) {
super(cache);
this.keyFunction = keyFunction;
this.function = function;
}
示例10: shouldMemoizeLongToIntFunctionWithKeyFunction
import java.util.function.LongToIntFunction; //导入依赖的package包/类
/**
*
*/
@Test
public void shouldMemoizeLongToIntFunctionWithKeyFunction() {
// given
final LongToIntFunction function = a -> 123;
final LongFunction<String> keyFunction = a -> "key";
// when
final LongToIntFunction memoize = GuavaMemoize.longToIntFunction(function, keyFunction);
// then
Assert.assertNotNull("Memoized LongToIntFunction is NULL", memoize);
}
示例11: shouldAcceptLoadingCache
import java.util.function.LongToIntFunction; //导入依赖的package包/类
/**
*
*/
@Test
public void shouldAcceptLoadingCache() {
// given
final LongToIntFunction function = a -> 123;
final LongFunction<Long> keyFunction = Long::valueOf;
final Cache<Long, Integer> cache = CacheBuilder.newBuilder().build();
// when
final GuavaCacheBasedLongToIntFunctionMemoizer<Long> memoizer = new GuavaCacheBasedLongToIntFunctionMemoizer<>(
cache, keyFunction, function);
// then
Assert.assertNotNull(memoizer);
}
示例12: shouldTransformInput
import java.util.function.LongToIntFunction; //导入依赖的package包/类
/**
*
*/
@Test
public void shouldTransformInput() {
// given
final LongToIntFunction function = a -> 123;
final LongFunction<Long> keyFunction = Long::valueOf;
final Cache<Long, Integer> cache = CacheBuilder.newBuilder().build();
// when
final GuavaCacheBasedLongToIntFunctionMemoizer<Long> memoizer = new GuavaCacheBasedLongToIntFunctionMemoizer<>(
cache, keyFunction, function);
// then
Assert.assertEquals("Memoized value does not match expectation", 123, memoizer.applyAsInt(789));
}
示例13: shouldMemoizeLongToIntFunctionWithLambda
import java.util.function.LongToIntFunction; //导入依赖的package包/类
/**
*
*/
@Test
public void shouldMemoizeLongToIntFunctionWithLambda() {
// given
// when
final LongToIntFunction memoize = GuavaMemoize.longToIntFunction(a -> 123);
// then
Assert.assertNotNull("Memoized LongToIntFunction is NULL", memoize);
}
示例14: shouldMemoizeLongToIntFunction
import java.util.function.LongToIntFunction; //导入依赖的package包/类
/**
*
*/
@Test
public void shouldMemoizeLongToIntFunction() {
// given
final LongToIntFunction function = a -> 123;
// when
final LongToIntFunction memoize = GuavaMemoize.longToIntFunction(function);
// then
Assert.assertNotNull("Memoized LongToIntFunction is NULL", memoize);
}
示例15: JCacheBasedLongToIntFunctionMemoizer
import java.util.function.LongToIntFunction; //导入依赖的package包/类
JCacheBasedLongToIntFunctionMemoizer(
final Cache<KEY, Integer> cache,
final LongFunction<KEY> keyFunction,
final LongToIntFunction biFunction) {
super(cache);
this.keyFunction = keyFunction;
this.biFunction = biFunction;
}