com.google.cloud.datastore.Entity.getNames()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.cloud.datastore.Entity.getNames()方法的一些代码示例，展示了Entity.getNames()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。Entity.getNames()方法的具体详情如下：
包路径：com.google.cloud.datastore.Entity
类名称：Entity
方法名：getNames

Entity.getNames介绍

暂无

代码示例

代码示例来源：origin: google/data-transfer-project

private static Map<String, Object> getProperties(Entity entity)
  throws IOException, ClassNotFoundException {
 if (entity == null) {
  return null;
 }
 ImmutableMap.Builder<String, Object> builder = new ImmutableMap.Builder<>();
 for (String property : entity.getNames()) {
  // builder.put(property, entity.getValue(property));
  if (entity.getValue(property) instanceof StringValue) {
   builder.put(property, (String) entity.getString(property));
  } else if (entity.getValue(property) instanceof LongValue) {
   // This conversion is safe because of integer to long conversion above
   builder.put(property, new Long(entity.getLong(property)).intValue());
  } else if (entity.getValue(property) instanceof DoubleValue) {
   builder.put(property, (Double) entity.getDouble(property));
  } else if (entity.getValue(property) instanceof BooleanValue) {
   builder.put(property, (Boolean) entity.getBoolean(property));
  } else if (entity.getValue(property) instanceof TimestampValue) {
   builder.put(property, (Timestamp) entity.getTimestamp(property));
  } else {
   Blob blob = entity.getBlob(property);
   Object obj = null;
   try (ObjectInputStream in = new ObjectInputStream(blob.asInputStream())) {
    obj = in.readObject();
   }
   builder.put(property, obj); // BlobValue
  }
 }
 return builder.build();
}

代码示例来源：origin: googleapis/google-cloud-java

@Test
public void testAddEntity() {
 List<Entity> keys = DATASTORE.fetch(ENTITY1.getKey(), ENTITY3.getKey());
 assertEquals(ENTITY1, keys.get(0));
 assertNull(keys.get(1));
 assertEquals(2, keys.size());
 try {
  DATASTORE.add(ENTITY1);
  fail("Expecting a failure");
 } catch (DatastoreException expected) {
  // expected;
 }
 List<Entity> entities = DATASTORE.add(ENTITY3, PARTIAL_ENTITY1, PARTIAL_ENTITY2);
 assertEquals(ENTITY3, DATASTORE.get(ENTITY3.getKey()));
 assertEquals(ENTITY3, entities.get(0));
 assertEquals(PARTIAL_ENTITY1.getNames(), entities.get(1).getNames());
 assertEquals(PARTIAL_ENTITY1.getKey().getAncestors(), entities.get(1).getKey().getAncestors());
 assertNotNull(DATASTORE.get(entities.get(1).getKey()));
 assertEquals(PARTIAL_ENTITY2.getNames(), entities.get(2).getNames());
 assertEquals(PARTIAL_ENTITY2.getKey().getAncestors(), entities.get(2).getKey().getAncestors());
 assertNotNull(DATASTORE.get(entities.get(2).getKey()));
 for (Entity entity : entities) {
  DATASTORE.delete(entity.getKey());
 }
}

代码示例来源：origin: googleapis/google-cloud-java

@Test
public void testGetArrayNoDeferredResults() {
 DATASTORE.put(ENTITY3);
 Iterator<Entity> result =
   DATASTORE.fetch(KEY1, Key.newBuilder(KEY1).setName("bla").build(), KEY2, KEY3).iterator();
 assertEquals(ENTITY1, result.next());
 assertNull(result.next());
 assertEquals(ENTITY2, result.next());
 Entity entity3 = result.next();
 assertEquals(ENTITY3, entity3);
 assertTrue(entity3.isNull("null"));
 assertFalse(entity3.getBoolean("bool"));
 assertEquals(LIST_VALUE2.get(), entity3.getList("list"));
 FullEntity<IncompleteKey> partial1 = entity3.getEntity("partial1");
 FullEntity<IncompleteKey> partial2 = entity3.getEntity("partial2");
 assertEquals(PARTIAL_ENTITY2, partial1);
 assertEquals(ENTITY2, partial2);
 assertEquals(ValueType.BOOLEAN, entity3.getValue("bool").getType());
 assertEquals(LAT_LNG_VALUE, entity3.getValue("latLng"));
 assertEquals(EMPTY_LIST_VALUE, entity3.getValue("emptyList"));
 assertEquals(8, entity3.getNames().size());
 assertFalse(entity3.contains("bla"));
 try {
  entity3.getString("str");
  fail("Expecting a failure");
 } catch (DatastoreException expected) {
  // expected - no such property
 }
 assertFalse(result.hasNext());
}

代码示例来源：origin: googleapis/google-cloud-java

@Test
public void testGetArrayNoDeferredResults() {
 datastore.put(ENTITY3);
 Iterator<Entity> result =
   datastore.fetch(KEY1, Key.newBuilder(KEY1).setName("bla").build(), KEY2, KEY3).iterator();
 assertEquals(ENTITY1, result.next());
 assertNull(result.next());
 assertEquals(ENTITY2, result.next());
 Entity entity3 = result.next();
 assertEquals(ENTITY3, entity3);
 assertTrue(entity3.isNull("null"));
 assertFalse(entity3.getBoolean("bool"));
 assertEquals(LIST_VALUE2.get(), entity3.getList("list"));
 FullEntity<IncompleteKey> partial1 = entity3.getEntity("partial1");
 FullEntity<IncompleteKey> partial2 = entity3.getEntity("partial2");
 assertEquals(PARTIAL_ENTITY2, partial1);
 assertEquals(ENTITY2, partial2);
 assertEquals(ValueType.BOOLEAN, entity3.getValue("bool").getType());
 assertEquals(LAT_LNG_VALUE, entity3.getValue("latLng"));
 assertEquals(EMPTY_LIST_VALUE, entity3.getValue("emptyList"));
 assertEquals(8, entity3.getNames().size());
 assertFalse(entity3.contains("bla"));
 try {
  entity3.getString("str");
  fail("Expecting a failure");
 } catch (DatastoreException expected) {
  // expected - no such property
 }
 assertFalse(result.hasNext());
}

代码示例来源：origin: googleapis/google-cloud-java

@Test
public void testPut() {
 Entity updatedEntity = Entity.newBuilder(ENTITY1).set("new_property", 42L).build();
 assertEquals(updatedEntity, DATASTORE.put(updatedEntity));
 assertEquals(updatedEntity, DATASTORE.get(updatedEntity.getKey()));
 Entity entity2 = Entity.newBuilder(ENTITY2).clear().set("bla", new NullValue()).build();
 assertNotEquals(ENTITY2, entity2);
 List<Entity> entities = DATASTORE.put(ENTITY1, entity2, ENTITY3, PARTIAL_ENTITY1);
 assertEquals(ENTITY1, entities.get(0));
 assertEquals(entity2, entities.get(1));
 assertEquals(ENTITY3, entities.get(2));
 assertEquals(PARTIAL_ENTITY1.getNames(), entities.get(3).getNames());
 assertEquals(PARTIAL_ENTITY1.getKey().getAncestors(), entities.get(3).getKey().getAncestors());
 assertEquals(ENTITY1, DATASTORE.get(ENTITY1.getKey()));
 assertEquals(entity2, DATASTORE.get(entity2.getKey()));
 assertEquals(ENTITY3, DATASTORE.get(ENTITY3.getKey()));
 Entity entity = DATASTORE.get(entities.get(3).getKey());
 assertEquals(entities.get(3), entity);
 for (Entity entityToDelete : entities) {
  DATASTORE.delete(entityToDelete.getKey());
 }
}

代码示例来源：origin: googleapis/google-cloud-java

Entity entity6 = entities.get(1);
assertSame(entity4, entities.get(0));
assertEquals(PARTIAL_ENTITY2.getNames(), entity6.getNames());
assertEquals(PARTIAL_ENTITY2.getKey().getProjectId(), entity6.getKey().getProjectId());
assertEquals(PARTIAL_ENTITY2.getKey().getNamespace(), entity6.getKey().getNamespace());
List<Key> generatedKeys = response.getGeneratedKeys();
assertEquals(1, generatedKeys.size());
assertEquals(PARTIAL_ENTITY3.getNames(), DATASTORE.get(generatedKeys.get(0)).getNames());
assertEquals(PARTIAL_ENTITY3.getKey(), IncompleteKey.newBuilder(generatedKeys.get(0)).build());

代码示例来源：origin: googleapis/google-cloud-java

@Test
public void testGet() {
 Entity entity = datastore.get(KEY3);
 assertNull(entity);
 entity = datastore.get(KEY1);
 assertEquals(ENTITY1, entity);
 StringValue value1 = entity.getValue("str");
 assertEquals(STR_VALUE, value1);
 BooleanValue value2 = entity.getValue("bool");
 assertEquals(BOOL_VALUE, value2);
 ListValue value3 = entity.getValue("list");
 assertEquals(LIST_VALUE2, value3);
 TimestampValue value4 = entity.getValue("date");
 assertEquals(TIMESTAMP_VALUE, value4);
 LatLngValue value5 = entity.getValue("latLng");
 assertEquals(LAT_LNG_VALUE, value5);
 FullEntity<IncompleteKey> value6 = entity.getEntity("partial1");
 assertEquals(PARTIAL_ENTITY1, value6);
 ListValue value7 = entity.getValue("emptyList");
 assertEquals(EMPTY_LIST_VALUE, value7);
 assertEquals(7, entity.getNames().size());
 assertFalse(entity.contains("bla"));
}

代码示例来源：origin: googleapis/google-cloud-java

@Test
public void testGet() {
 Entity entity = DATASTORE.get(KEY3);
 assertNull(entity);
 entity = DATASTORE.get(KEY1);
 assertEquals(ENTITY1, entity);
 StringValue value1 = entity.getValue("str");
 assertEquals(STR_VALUE, value1);
 BooleanValue value2 = entity.getValue("bool");
 assertEquals(BOOL_VALUE, value2);
 ListValue value3 = entity.getValue("list");
 assertEquals(LIST_VALUE2, value3);
 TimestampValue value4 = entity.getValue("date");
 assertEquals(TIMESTAMP_VALUE, value4);
 LatLngValue value5 = entity.getValue("latLng");
 assertEquals(LAT_LNG_VALUE, value5);
 FullEntity<IncompleteKey> value6 = entity.getEntity("partial1");
 assertEquals(PARTIAL_ENTITY1, value6);
 ListValue value7 = entity.getValue("emptyList");
 assertEquals(EMPTY_LIST_VALUE, value7);
 assertEquals(7, entity.getNames().size());
 assertFalse(entity.contains("bla"));
}

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