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Java MemcacheService.IdentifiableValue方法代碼示例

本文整理匯總了Java中com.google.appengine.api.memcache.MemcacheService.IdentifiableValue方法的典型用法代碼示例。如果您正苦於以下問題：Java MemcacheService.IdentifiableValue方法的具體用法？Java MemcacheService.IdentifiableValue怎麽用？Java MemcacheService.IdentifiableValue使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類com.google.appengine.api.memcache.MemcacheService的用法示例。


在下文中一共展示了MemcacheService.IdentifiableValue方法的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。

示例1: getIdentifiable

import com.google.appengine.api.memcache.MemcacheService; //導入方法依賴的package包/類
@Nullable public IdentifiableValue<V> getIdentifiable(@Nullable K key) {
  TaggedKey<K> taggedKey = tagKey(key);
  MemcacheService.IdentifiableValue rawValue;
  try {
    rawValue = service.getIdentifiable(taggedKey);
  } catch (InvalidValueException e) {
    // Probably a deserialization error (incompatible serialVersionUID or similar).
    log.log(Level.WARNING, "Error getting object from memcache, key: " + key, e);
    return null;
  }
  if (rawValue == null) {
    log.info("cache miss " + taggedKey);
    return null;
  } else {
    log.info("cache hit " + taggedKey + " = " + rawValue);
    return new IdentifiableValue<V>(rawValue);
  }
}
開發者ID:ArloJamesBarnes，項目名稱:walkaround，代碼行數:19，代碼來源:MemcacheTable.java

示例2: put

import com.google.appengine.api.memcache.MemcacheService; //導入方法依賴的package包/類
public boolean put(Object key, long txTimestamp, Object value) {

        String versionKey = versionKey(key);


        // check for the current version cached
        MemcacheService.IdentifiableValue currentVersion = memcacheService.getIdentifiable(versionKey);
        
        if (!isNewer(currentVersion, txTimestamp)) {
            return false;
        }

        // store the value first so we don't risk the version number appearing before the
        // corresponding value is written
        memcacheService.put(valueKey(key, txTimestamp), value);

        // Now update the version key if a newer version hasn't already been stored
        while (!updateVersionKey(versionKey, currentVersion, txTimestamp)) {
            // ... in the meantime another process has updated the cache with a version
            // but we don't know if it's older or younger, so we have to try again
            currentVersion = memcacheService.getIdentifiable(versionKey);
        }
        return true;
    }
開發者ID:bedatadriven，項目名稱:appengine-hibernate，代碼行數:25，代碼來源:AbstractMemcacheRegion.java

示例3: testPutIfUntouchedExpire

import com.google.appengine.api.memcache.MemcacheService; //導入方法依賴的package包/類
@Test
public void testPutIfUntouchedExpire() {
    final String TS_KEY = createTimeStampKey("testPutIfUntouched");

    memcache.put(TS_KEY, STR_VALUE);
    MemcacheService.IdentifiableValue oldOriginalIdValue = memcache.getIdentifiable(TS_KEY);
    final String NEW_VALUE = "new-" + STR_VALUE;

    // Store NEW_VALUE if no other value stored since oldOriginalIdValue was retrieved.
    // memcache.get() has not been called, so this put should succeed.
    Boolean valueWasStored = memcache.putIfUntouched(TS_KEY, oldOriginalIdValue, NEW_VALUE, Expiration.byDeltaSeconds(1));
    assertEquals(true, valueWasStored);
    assertEquals(NEW_VALUE, memcache.get(TS_KEY));

    // Value should not be stored after expiration period.
    sync(3000);
    assertNull(memcache.get(TS_KEY));
}
開發者ID:GoogleCloudPlatform，項目名稱:appengine-tck，代碼行數:19，代碼來源:MemcacheTest.java

示例4: getIdentifiable

import com.google.appengine.api.memcache.MemcacheService; //導入方法依賴的package包/類
@Nullable
public IdentifiableValue<V> getIdentifiable(@Nullable K key) {
  TaggedKey<K> taggedKey = tagKey(key);
  MemcacheService.IdentifiableValue rawValue;
  try {
    rawValue = service.getIdentifiable(taggedKey);
  } catch (InvalidValueException e) {
    // Probably a deserialization error (incompatible serialVersionUID or similar).
    log.log(Level.WARNING, "Error getting object from memcache, key: " + key, e);
    return null;
  }
  if (rawValue == null) {
    log.info("cache miss " + taggedKey);
    return null;
  } else {
    log.info("cache hit " + taggedKey + " = " + rawValue);
    return new IdentifiableValue<V>(rawValue);
  }
}
開發者ID:larrytin，項目名稱:realtime-server-appengine，代碼行數:20，代碼來源:MemcacheTable.java

示例5: updateVersionKey

import com.google.appengine.api.memcache.MemcacheService; //導入方法依賴的package包/類
private boolean updateVersionKey(String versionKey, MemcacheService.IdentifiableValue currentVersion, long txTimestamp) {
    if (currentVersion == null) {
        // No existing version...
        return memcacheService.put(versionKey, 
                txTimestamp,
                versionExpiration(),
                MemcacheService.SetPolicy.ADD_ONLY_IF_NOT_PRESENT);
    } else {
        return memcacheService.putIfUntouched(
                versionKey, 
                currentVersion, 
                txTimestamp, 
                versionExpiration());
    }
}
開發者ID:bedatadriven，項目名稱:appengine-hibernate，代碼行數:16，代碼來源:AbstractMemcacheRegion.java

示例6: isNewer

import com.google.appengine.api.memcache.MemcacheService; //導入方法依賴的package包/類
private boolean isNewer(MemcacheService.IdentifiableValue currentVersion, long newVersion) {
    if (currentVersion == null) {
        return true;
    }
    Number currentVersionNumber = (Number) currentVersion.getValue();
    return currentVersionNumber.longValue() < newVersion;
}
開發者ID:bedatadriven，項目名稱:appengine-hibernate，代碼行數:8，代碼來源:AbstractMemcacheRegion.java

示例7: testGetIdentifiables

import com.google.appengine.api.memcache.MemcacheService; //導入方法依賴的package包/類
@Test
public void testGetIdentifiables() {
    unwrap(service.put("key1", "value1"));
    unwrap(service.put("key2", "value2"));
    Map<String, MemcacheService.IdentifiableValue> identifiables = unwrap(service.getIdentifiables(Arrays.asList("key1", "key2")));

    assertEquals(2, identifiables.size());

    assertNotNull(identifiables.get("key1"));
    assertEquals("value1", identifiables.get("key1").getValue());

    assertNotNull(identifiables.get("key2"));
    assertEquals("value2", identifiables.get("key2").getValue());
}
開發者ID:GoogleCloudPlatform，項目名稱:appengine-tck，代碼行數:15，代碼來源:MemcacheAsyncTest.java

示例8: testPutIfUntouched

import com.google.appengine.api.memcache.MemcacheService; //導入方法依賴的package包/類
@Test
public void testPutIfUntouched() {
    unwrap(service.put("key", "value"));

    MemcacheService.IdentifiableValue identifiable = unwrap(service.getIdentifiable("key"));

    boolean valueWasStored = unwrap(service.putIfUntouched("key", identifiable, "newValue"));
    assertTrue(valueWasStored);
    assertEquals("newValue", unwrap(service.get("key")));

    boolean valueWasStored2 = unwrap(service.putIfUntouched("key", identifiable, "newestValue"));
    assertFalse(valueWasStored2);
    assertEquals("newValue", unwrap(service.get("key")));
}
開發者ID:GoogleCloudPlatform，項目名稱:appengine-tck，代碼行數:15，代碼來源:MemcacheAsyncTest.java

示例9: testPutIfUntouchedMulti

import com.google.appengine.api.memcache.MemcacheService; //導入方法依賴的package包/類
@Test
public void testPutIfUntouchedMulti() {
    unwrap(service.put("key1", "value1"));
    unwrap(service.put("key2", "value2"));

    MemcacheService.IdentifiableValue identifiable1 = unwrap(service.getIdentifiable("key1"));
    MemcacheService.IdentifiableValue identifiable2 = unwrap(service.getIdentifiable("key2"));


    HashMap<Object, MemcacheService.CasValues> map = new HashMap<Object, MemcacheService.CasValues>();
    map.put("key1", new MemcacheService.CasValues(identifiable1, "newValue1"));
    map.put("key2", new MemcacheService.CasValues(identifiable2, "newValue2"));

    Set<Object> storedKeys = unwrap(service.putIfUntouched(map));
    assertEquals(2, storedKeys.size());
    assertTrue(storedKeys.contains("key1"));
    assertTrue(storedKeys.contains("key2"));
    assertEquals("newValue1", unwrap(service.get("key1")));
    assertEquals("newValue2", unwrap(service.get("key2")));


    map = new HashMap<Object, MemcacheService.CasValues>();
    map.put("key1", new MemcacheService.CasValues(identifiable1, "newestValue1"));
    map.put("key2", new MemcacheService.CasValues(identifiable1, "newestValue2"));

    storedKeys = unwrap(service.putIfUntouched(map));
    assertTrue(storedKeys.isEmpty());
    assertEquals("newValue1", unwrap(service.get("key1")));
    assertEquals("newValue2", unwrap(service.get("key2")));
}
開發者ID:GoogleCloudPlatform，項目名稱:appengine-tck，代碼行數:31，代碼來源:MemcacheAsyncTest.java

示例10: testGetIdentifiables

import com.google.appengine.api.memcache.MemcacheService; //導入方法依賴的package包/類
@Test
public void testGetIdentifiables() {
    memcache.put("key1", "value1");
    memcache.put("key2", "value2");
    Map<String, MemcacheService.IdentifiableValue> identifiables = memcache.getIdentifiables(Arrays.asList("key1", "key2"));

    assertEquals(2, identifiables.size());

    assertNotNull(identifiables.get("key1"));
    assertEquals("value1", identifiables.get("key1").getValue());

    assertNotNull(identifiables.get("key2"));
    assertEquals("value2", identifiables.get("key2").getValue());
}
開發者ID:GoogleCloudPlatform，項目名稱:appengine-tck，代碼行數:15，代碼來源:MemcacheTest.java

示例11: testGetSomeIdentifiables

import com.google.appengine.api.memcache.MemcacheService; //導入方法依賴的package包/類
@Test
public void testGetSomeIdentifiables() {
    memcache.put("key1", "value1");
    Map<String, MemcacheService.IdentifiableValue> identifiables = memcache.getIdentifiables(Arrays.asList("key1", "no_such_key2"));

    assertEquals(1, identifiables.size());

    assertNotNull(identifiables.get("key1"));
    assertEquals("value1", identifiables.get("key1").getValue());
}
開發者ID:GoogleCloudPlatform，項目名稱:appengine-tck，代碼行數:11，代碼來源:MemcacheTest.java

示例12: testPutIfUntouched

import com.google.appengine.api.memcache.MemcacheService; //導入方法依賴的package包/類
@Test
public void testPutIfUntouched() {
    memcache.put("key", "value");

    MemcacheService.IdentifiableValue identifiable = memcache.getIdentifiable("key");

    boolean valueWasStored = memcache.putIfUntouched("key", identifiable, "newValue");
    assertTrue(valueWasStored);
    assertEquals("newValue", memcache.get("key"));

    boolean valueWasStored2 = memcache.putIfUntouched("key", identifiable, "newestValue");
    assertFalse(valueWasStored2);
    assertEquals("newValue", memcache.get("key"));
}
開發者ID:GoogleCloudPlatform，項目名稱:appengine-tck，代碼行數:15，代碼來源:MemcacheTest.java

示例13: testPutIfUntouchedMulti

import com.google.appengine.api.memcache.MemcacheService; //導入方法依賴的package包/類
@Test
public void testPutIfUntouchedMulti() {
    memcache.put("key1", "value1");
    memcache.put("key2", "value2");

    MemcacheService.IdentifiableValue identifiable1 = memcache.getIdentifiable("key1");
    MemcacheService.IdentifiableValue identifiable2 = memcache.getIdentifiable("key2");


    HashMap<Object, MemcacheService.CasValues> map = new HashMap<Object, MemcacheService.CasValues>();
    map.put("key1", new MemcacheService.CasValues(identifiable1, "newValue1"));
    map.put("key2", new MemcacheService.CasValues(identifiable2, "newValue2"));

    Set<Object> storedKeys = memcache.putIfUntouched(map);
    assertEquals(2, storedKeys.size());
    assertTrue(storedKeys.contains("key1"));
    assertTrue(storedKeys.contains("key2"));
    assertEquals("newValue1", memcache.get("key1"));
    assertEquals("newValue2", memcache.get("key2"));


    map = new HashMap<Object, MemcacheService.CasValues>();
    map.put("key1", new MemcacheService.CasValues(identifiable1, "newestValue1"));
    map.put("key2", new MemcacheService.CasValues(identifiable1, "newestValue2"));

    storedKeys = memcache.putIfUntouched(map);
    assertTrue(storedKeys.isEmpty());
    assertEquals("newValue1", memcache.get("key1"));
    assertEquals("newValue2", memcache.get("key2"));
}
開發者ID:GoogleCloudPlatform，項目名稱:appengine-tck，代碼行數:31，代碼來源:MemcacheTest.java

示例14: IdentifiableValue

import com.google.appengine.api.memcache.MemcacheService; //導入方法依賴的package包/類
IdentifiableValue(MemcacheService.IdentifiableValue inner) {
  this.inner = checkNotNull(inner, "Null inner");
}
開發者ID:ArloJamesBarnes，項目名稱:walkaround，代碼行數:4，代碼來源:MemcacheTable.java

示例15: testGetIdentifiable

import com.google.appengine.api.memcache.MemcacheService; //導入方法依賴的package包/類
@Test
public void testGetIdentifiable() {
    unwrap(service.put("key", "value"));
    MemcacheService.IdentifiableValue identifiable = unwrap(service.getIdentifiable("key"));
    assertEquals("value", identifiable.getValue());
}
開發者ID:GoogleCloudPlatform，項目名稱:appengine-tck，代碼行數:7，代碼來源:MemcacheAsyncTest.java


注：本文中的com.google.appengine.api.memcache.MemcacheService.IdentifiableValue方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。