| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.pulsar.client.api.schema; |
| |
| import java.util.List; |
| import org.apache.pulsar.common.classification.InterfaceAudience; |
| import org.apache.pulsar.common.classification.InterfaceStability; |
| import org.apache.pulsar.common.schema.SchemaType; |
| |
| /** |
| * An interface represents a message with schema. |
| */ |
| @InterfaceAudience.Public |
| @InterfaceStability.Stable |
| public interface GenericRecord { |
| |
| /** |
| * Return schema version. |
| * |
| * @return schema version, or null if the information is not available. |
| */ |
| byte[] getSchemaVersion(); |
| |
| /** |
| * Returns the list of fields associated with the record. |
| * |
| * @return the list of fields associated with the record. |
| */ |
| List<Field> getFields(); |
| |
| /** |
| * Retrieve the value of the provided <tt>field</tt>. |
| * |
| * @param field the field to retrieve the value |
| * @return the value object |
| */ |
| default Object getField(Field field) { |
| return getField(field.getName()); |
| } |
| |
| /** |
| * Retrieve the value of the provided <tt>fieldName</tt>. |
| * |
| * @param fieldName the field name |
| * @return the value object |
| */ |
| Object getField(String fieldName); |
| |
| /** |
| * Return the schema tyoe. |
| * |
| * @return the schema type |
| * @throws UnsupportedOperationException if this feature is not implemented |
| * @see SchemaType#AVRO |
| * @see SchemaType#PROTOBUF_NATIVE |
| * @see SchemaType#JSON |
| */ |
| default SchemaType getSchemaType() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** |
| * Return the internal native representation of the Record, |
| * like a AVRO GenericRecord. |
| * |
| * @return the internal representation of the record |
| * @throws UnsupportedOperationException if the operation is not supported |
| */ |
| default Object getNativeRecord() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| } |