val schemaPaths = tablePath.slice(0, tablePath.length - 1) val schema = getSchema(schemaPaths)...CatalogNode(tablePath, table.getRowType(typeFactory)))) } } None } private def getSchema...} } schema } //...... } scan方法内部调用的是scanInternal，scanInternal首先读取catalog及db信息，然后调用getSchema...方法来获取schema getSchema是使用SchemaPlus的getSubSchema来按层次获取SchemaPlus，如果没有指定catalog及db，那么这里返回的是rootSchema 获取到...SchemaPlus的getTable方法查找Table 小结 TableEnvironment的scan操作就是从Schema中查找Table，可以使用tableName，或者额外指定catalog及db来查找 getSchema
] serialize(T obj) { Class clazz = (Class) obj.getClass(); Schema schema = getSchema...return */ public static T deserialize(byte[] data, Class clazz) { Schema schema = getSchema...schema); return obj; } @SuppressWarnings("unchecked") private static Schema getSchema...Objects.isNull(schema)) { //这个schema通过RuntimeSchema进行懒创建并缓存 //所以可以一直调用RuntimeSchema.getSchema...(),这个方法是线程安全的 schema = RuntimeSchema.getSchema(clazz); if (Objects.nonNull(schema
val schemaPaths = tablePath.slice(0, tablePath.length - 1) val schema = getSchema(schemaPaths)..., CatalogNode(tablePath, table.getRowType(typeFactory)))) } } None } private def getSchema...} } schema } //...... } scan方法内部调用的是scanInternal，scanInternal首先读取catalog及db信息，然后调用getSchema...方法来获取schema getSchema是使用SchemaPlus的getSubSchema来按层次获取SchemaPlus，如果没有指定catalog及db，那么这里返回的是rootSchema 获取到...SchemaPlus的getTable方法查找Table 小结 TableEnvironment的scan操作就是从Schema中查找Table，可以使用tableName，或者额外指定catalog及db来查找 getSchema
Test public void testSer() { BDO b = new BDO("10", "20"); Schema schema = RuntimeSchema.getSchema...Test public void testSer2() { BDO b = new BDO("10", "20"); Schema schema = RuntimeSchema.getSchema...schema, buffer); } finally { buffer.clear(); } Schema nSchema = RuntimeSchema.getSchema...Test public void testSer3() { NDO n = new NDO("10", "20"); Schema schema = RuntimeSchema.getSchema...ProtostuffIOUtil.mergeFrom(protostuff, ans, schema); System.out.println(ans); Schema bSchema = RuntimeSchema.getSchema
String[] args) throws FileNotFoundException, IOException { Schema schema = RuntimeSchema.getSchema...* * Method overload for backwards compatibility. */ public static Schema getSchema...(Class typeClass) { return getSchema(typeClass, ID_STRATEGY); } /** * Gets...that was either registered or lazily initialized at runtime. */ public static Schema getSchema...(); } getSchema方法中指定了获取Schema的默认策略类ID_STRATEGY，ID_STRATEGY在类RuntimeEnv中进行了实例化： ID_STRATEGY = new
] serialize(T obj) { Class clazz = (Class) obj.getClass(); Schema schema = getSchema...*/ public static T deserialize(byte[] data, Class clazz) { Schema schema = getSchema...schema); return obj; } @SuppressWarnings("unchecked") private static Schema getSchema...schema == null) { //这个schema通过RuntimeSchema进行懒创建并缓存 //所以可以一直调用RuntimeSchema.getSchema...(),这个方法是线程安全的 schema = RuntimeSchema.getSchema(clazz); if (schema == null) {
try { T obj = clazz.newInstance(); // 创建一个新的对象实例 Schema schema = getSchema...>> cachedSchema = new ConcurrentHashMap(); 获取Schema: 工具类提供了一个泛型方法getSchema(Class clazz)来获取某个类的Schema...private static Schema getSchema(Class clazz) { Schema schema = cachedSchema.get(clazz...); if (schema == null) { schema = RuntimeSchema.getSchema(clazz); if (schema !...] data, Class clazz) { try { T obj = clazz.newInstance(); Schema schema = getSchema
addDefaultPrimaryKey(); $primaryKeyArray = $createIndexArray = array(); $tableInfo = Yii::$app->getDb()->getSchema...判断isPrimaryKey是否为1 且 autoIncrement是否不存在（因为有的表可能不需要自增而需要主键，这个循环判断就是为了干这件事），然后我们会发现Yii::$app->getDb()->getSchema...yiisoft/yii2/db/Migration.php 468行） 数据表有用到外键的朋友，代码你们可能要自己手写一小段了，作者项目中未遇到外键所以代码没写，在Yii::$app->getDb()->getSchema...getTableNames(); foreach($tablesName as $key => $value) { $tablesInfo = $db->getSchema...info); } } } 我们先实例化模型文件，然后获取到存放迁移文件的路径，先将迁移路径下的所有迁移文件删除掉（避免重复），然后我们就使用：Yii::$app->getDb()->getSchema
private static Map, Object> unWrapperMap = new ConcurrentHashMap, Object>(); private static Schema getSchema...; } Schema schema = (Schema) RuntimeSchema.getSchema(objList.get(0).getClass()); LinkedBuffer buffer...LinkedBuffer buffer = LinkedBuffer.allocate(LinkedBuffer.MIN_BUFFER_SIZE); try { Schema schema = getSchema...; } Schema schema = RuntimeSchema.getSchema(clazz); try { List list = ProtostuffIOUtil.parseListFrom...static T unSerializeT(byte[] data, Class cls) { try { T message = cls.newInstance(); Schema schema = getSchema
Class clazz = (Class) object.getClass(); 2、接下来，调用 getSchema() 方法获取该类对应的 Schema 对象。...如果缓存中存在相应的 Schema，则直接使用缓存的对象；否则，通过 RuntimeSchema.getSchema() 创建新的 Schema 对象，并将其加入到 schemaCache 中。...Schema schema = getSchema(clazz); private Schema getSchema(Class clazz) { Schema<...buffer.clear(); return bytes; ---- deserialize 方法的步骤如下： 1、首先，通过调用 getSchema() 方法获取对应的 Schema 对象。...Schema schema = getSchema(clazz); 2、然后通过 schema.newMessage() 创建一个新的目标对象。
] serialize(T obj) { Class clazz = (Class) obj.getClass(); Schema schema = getSchema...*/ public static T deserialize(byte[] data, Class clazz) { Schema schema = getSchema...schema); return obj; } @SuppressWarnings("unchecked") private static Schema getSchema...Objects.isNull(schema)) { //这个schema通过RuntimeSchema进行懒创建并缓存 //所以可以一直调用RuntimeSchema.getSchema...(),这个方法是线程安全的 schema = RuntimeSchema.getSchema(clazz); if (Objects.nonNull(schema
featureSource = new ShapefileDataStore(file.toURL()); CoordinateReferenceSystem srcCRS = featureSource.getSchema...().getCoordinateReferenceSystem(); SimpleFeatureType featureType = featureSource.getSchema();
private SerializationUtil() { } @SuppressWarnings("unchecked") private static Schema getSchema...LinkedBuffer.allocate(LinkedBuffer.DEFAULT_BUFFER_SIZE); try { Schema schema = getSchema...try { T message = (T) objenesis.newInstance(cls); Schema schema = getSchema...LinkedBuffer.allocate(LinkedBuffer.DEFAULT_BUFFER_SIZE); try { Schema schema = getSchema...try { T message = (T) objenesis.newInstance(cls); Schema schema = getSchema
SerializationUtils(){ } @SuppressWarnings("unchecked") private static Schema getSchema...LinkedBuffer.allocate(LinkedBuffer.DEFAULT_BUFFER_SIZE); try{ Schema schema = getSchema...try{ T message = (T)objenesis.newInstance(cls); Schema schema = getSchema
LinkedBuffer.allocate(LinkedBuffer.DEFAULT_BUFFER_SIZE); try { Schema schema = getSchema...{ try { T message = objenesis.newInstance(cls); Schema schema = getSchema...throw new IllegalStateException(e.getMessage(), e); } } private static Schema getSchema
ConcurrentHashMap, Schema>>(); private static Objenesis objenesis = new ObjenesisStd(true); private static Schema getSchema...”) Schema schema = (Schema) cachedSchema.get(clazz); if (schema == null) { schema = RuntimeSchema.getSchema...LinkedBuffer buffer = LinkedBuffer.allocate(LinkedBuffer.DEFAULT_BUFFER_SIZE); try { Schema schema = getSchema...deserializer(byte[] data, Class clazz) { try { T obj = objenesis.newInstance(clazz); Schema schema = getSchema
logger.error(ex.getMessage()); } return database; } public List getSchema...String table) { List schema = null; try { schema = client.getSchema
为架构生成输出按照上一节所述创建%XML.Schema的实例后，请执行以下操作以生成输出：调用实例的GetSchema()方法将架构作为文档对象模型(DOM)的节点返回。...如果模式没有命名空间，请使用“”作为GetSchema()的参数。可以选择修改此DOM。要生成架构，请执行以下操作：a. 创建%XML.Write的实例，并可选择设置属性(如缩进)。b....schemawriter.AddSchemaType("Facets.Test") //通过其URI(在本例中为NULL)检索架构 Set schema=schemawriter.GetSchema...SchemaWriter.Company") Do schema.DefineLocation("http://www.other.com","c:/other-schema.xsd") Set schema=schema.GetSchema
return the {@link RecordSchema} that applies to the records in this RecordSet */ RecordSchema getSchema...SchemaNotFoundException { final InputStream bufferedIn = new BufferedInputStream(in); final RecordSchema schema = getSchema...getNextJsonNode(); if (nextNode == null) { return null; } final RecordSchema schema = getSchema
领取专属 10元无门槛券
手把手带您无忧上云
云服务器
即时通信 IM
ICP备案
对象存储
实时音视频
