com.google.common.hash.HashCode.fromLong()方法的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中com.google.common.hash.HashCode.fromLong()方法的一些代码示例,展示了HashCode.fromLong()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。HashCode.fromLong()方法的具体详情如下:
包路径:com.google.common.hash.HashCode
类名称:HashCode
方法名:fromLong

HashCode.fromLong介绍

[英]Creates a 64-bit HashCode representation of the given long value. The underlying bytes are interpreted in little endian order.
[中]创建给定长值的64位哈希代码表示形式。底层字节以小的尾数顺序进行解释。

代码示例

代码示例来源:origin: google/guava

@Override
 public HashCode hash() {
  long value = checksum.getValue();
  if (bits == 32) {
   /*
    * The long returned from a 32-bit Checksum will have all 0s for its second word, so the
    * cast won't lose any information and is necessary to return a HashCode of the correct
    * size.
    */
   return HashCode.fromInt((int) value);
  } else {
   return HashCode.fromLong(value);
  }
 }
}

代码示例来源:origin: google/guava

@Override
public HashCode makeHash() {
 // End with a byte encoding the positive integer b mod 256.
 finalM ^= b << 56;
 processM(finalM);
 // Finalization
 v2 ^= 0xFFL;
 sipRound(d);
 return HashCode.fromLong(v0 ^ v1 ^ v2 ^ v3);
}

代码示例来源:origin: google/guava

@Override
public HashCode hashBytes(byte[] input, int off, int len) {
 checkPositionIndexes(off, off + len, input.length);
 return HashCode.fromLong(fingerprint(input, off, len));
}

代码示例来源:origin: google/j2objc

@Override
 public HashCode hash() {
  long value = checksum.getValue();
  if (bits == 32) {
   /*
    * The long returned from a 32-bit Checksum will have all 0s for its second word, so the
    * cast won't lose any information and is necessary to return a HashCode of the correct
    * size.
    */
   return HashCode.fromInt((int) value);
  } else {
   return HashCode.fromLong(value);
  }
 }
}

代码示例来源:origin: wildfly/wildfly

@Override
 public HashCode hash() {
  long value = checksum.getValue();
  if (bits == 32) {
   /*
    * The long returned from a 32-bit Checksum will have all 0s for its second word, so the
    * cast won't lose any information and is necessary to return a HashCode of the correct
    * size.
    */
   return HashCode.fromInt((int) value);
  } else {
   return HashCode.fromLong(value);
  }
 }
}

代码示例来源:origin: google/guava

public void testFromLong() {
 for (ExpectedHashCode expected : expectedHashCodes) {
  if (expected.bytes.length == 8) {
   HashCode fromLong = HashCode.fromLong(expected.asLong);
   assertExpectedHashCode(expected, fromLong);
  }
 }
}

代码示例来源:origin: google/guava

public void testLongWriteBytesTo() {
 byte[] dest = new byte[8];
 HashCode.fromLong(42).writeBytesTo(dest, 0, 8);
 assertTrue(Arrays.equals(HashCode.fromLong(42).asBytes(), dest));
}

代码示例来源:origin: google/j2objc

@Override
public HashCode makeHash() {
 // End with a byte encoding the positive integer b mod 256.
 finalM ^= b << 56;
 processM(finalM);
 // Finalization
 v2 ^= 0xFFL;
 sipRound(d);
 return HashCode.fromLong(v0 ^ v1 ^ v2 ^ v3);
}

代码示例来源:origin: google/j2objc

@Override
public HashCode hashBytes(byte[] input, int off, int len) {
 checkPositionIndexes(off, off + len, input.length);
 return HashCode.fromLong(fingerprint(input, off, len));
}

代码示例来源:origin: wildfly/wildfly

@Override
public HashCode makeHash() {
 // End with a byte encoding the positive integer b mod 256.
 finalM ^= b << 56;
 processM(finalM);
 // Finalization
 v2 ^= 0xFFL;
 sipRound(d);
 return HashCode.fromLong(v0 ^ v1 ^ v2 ^ v3);
}

代码示例来源:origin: wildfly/wildfly

@Override
public HashCode hashBytes(byte[] input, int off, int len) {
 checkPositionIndexes(off, off + len, input.length);
 return HashCode.fromLong(fingerprint(input, off, len));
}

代码示例来源:origin: google/guava

public void testCombineUnordered_randomHashCodes() {
 Random random = new Random(RANDOM_SEED);
 List<HashCode> hashCodes = Lists.newArrayList();
 for (int i = 0; i < 10; i++) {
  hashCodes.add(HashCode.fromLong(random.nextLong()));
 }
 HashCode hashCode1 = Hashing.combineUnordered(hashCodes);
 Collections.shuffle(hashCodes);
 HashCode hashCode2 = Hashing.combineUnordered(hashCodes);
 assertEquals(hashCode1, hashCode2);
}

代码示例来源:origin: google/guava

public void testCombineOrdered_randomHashCodes() {
 Random random = new Random(7);
 List<HashCode> hashCodes = Lists.newArrayList();
 for (int i = 0; i < 10; i++) {
  hashCodes.add(HashCode.fromLong(random.nextLong()));
 }
 HashCode hashCode1 = Hashing.combineOrdered(hashCodes);
 Collections.shuffle(hashCodes, random);
 HashCode hashCode2 = Hashing.combineOrdered(hashCodes);
 assertFalse(hashCode1.equals(hashCode2));
}

代码示例来源:origin: google/guava

public void testConsistentHash_ofHashCode() {
 checkSameResult(HashCode.fromLong(1), 1);
 checkSameResult(HashCode.fromLong(0x9999999999999999L), 0x9999999999999999L);
 checkSameResult(HashCode.fromInt(0x99999999), 0x0000000099999999L);
}

代码示例来源:origin: google/guava

public void testCombineUnordered_differentBitLengths() {
 try {
  HashCode unused =
    Hashing.combineUnordered(ImmutableList.of(HashCode.fromInt(32), HashCode.fromLong(32L)));
  fail();
 } catch (IllegalArgumentException expected) {
 }
}

代码示例来源:origin: google/guava

public void testCombineOrdered_differentBitLengths() {
 try {
  HashCode unused =
    Hashing.combineOrdered(ImmutableList.of(HashCode.fromInt(32), HashCode.fromLong(32L)));
  fail();
 } catch (IllegalArgumentException expected) {
 }
}

代码示例来源:origin: google/guava

public void testNullPointers() {
 NullPointerTester tester =
   new NullPointerTester()
     .setDefault(byte[].class, "secret key".getBytes(UTF_8))
     .setDefault(HashCode.class, HashCode.fromLong(0));
 tester.testAllPublicStaticMethods(Hashing.class);
}

代码示例来源:origin: google/guava

public void testPadToLong() {
 assertEquals(0x1111111111111111L, HashCode.fromLong(0x1111111111111111L).padToLong());
 assertEquals(0x9999999999999999L, HashCode.fromLong(0x9999999999999999L).padToLong());
 assertEquals(0x0000000011111111L, HashCode.fromInt(0x11111111).padToLong());
 assertEquals(0x0000000099999999L, HashCode.fromInt(0x99999999).padToLong());
}

代码示例来源:origin: omero/common

@Override
public byte[] checksumAsBytes() {
  isChecksumCalculated = true;
  /* use Guava hash code to match the other algorithms */
  return HashCode.fromLong(size).asBytes();
}

代码示例来源:origin: com.ning.billing/killbill-osgi-bundles-jruby

@Override public HashCode makeHash() {
 // End with a byte encoding the positive integer b mod 256.
 finalM ^= b << 56;
 processM(finalM);
 // Finalization
 v2 ^= 0xFFL;
 sipRound(d);
 return HashCode.fromLong(v0 ^ v1 ^ v2 ^ v3);
}

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