org.apache.flink.cdc.runtime.operators.transform

类 TransformProjectionProcessor

java.lang.Object

org.apache.flink.cdc.runtime.operators.transform.TransformProjectionProcessor

public class TransformProjectionProcessor
extends Object

The processor of transform projection applies to process a row of filtering tables.

A transform projection processor contains:

• CreateTableEvent: add the user-defined computed columns into Schema.
• SchemaChangeEvent: update the columns of TransformProjection.
• DataChangeEvent: Fill data field to row in PreTransformOperator. Process the data column and the user-defined expression computed columns.

构造器概要

构造器

构造器和说明
TransformProjectionProcessor(PostTransformChangeInfo postTransformChangeInfo, TransformProjection transformProjection, String timezone, List<UserDefinedFunctionDescriptor> udfDescriptors, List<Object> udfFunctionInstances, org.apache.flink.cdc.common.source.SupportedMetadataColumn[] supportedMetadataColumns)

方法概要

限定符和类型	方法和说明
TransformProjection	getTransformProjection()
boolean	hasTableInfo()
static TransformProjectionProcessor	of(PostTransformChangeInfo tableInfo, TransformProjection transformProjection, String timezone, List<UserDefinedFunctionDescriptor> udfDescriptors, List<Object> udfFunctionInstances, org.apache.flink.cdc.common.source.SupportedMetadataColumn[] supportedMetadataColumns)
static TransformProjectionProcessor	of(TransformProjection transformProjection, List<UserDefinedFunctionDescriptor> udfDescriptors, List<Object> udfFunctionInstances, org.apache.flink.cdc.common.source.SupportedMetadataColumn[] supportedMetadataColumns)
static TransformProjectionProcessor	of(TransformProjection transformProjection, String timezone, List<UserDefinedFunctionDescriptor> udfDescriptors, List<Object> udfFunctionInstances, org.apache.flink.cdc.common.source.SupportedMetadataColumn[] supportedMetadataColumns)
org.apache.flink.cdc.common.data.binary.BinaryRecordData	processData(org.apache.flink.cdc.common.data.binary.BinaryRecordData payload, long epochTime, String opType, Map<String,String> meta)
org.apache.flink.cdc.common.schema.Schema	processSchema(org.apache.flink.cdc.common.schema.Schema schema, org.apache.flink.cdc.common.source.SupportedMetadataColumn[] supportedMetadataColumns)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

TransformProjectionProcessor

public TransformProjectionProcessor(PostTransformChangeInfo postTransformChangeInfo,
                                    TransformProjection transformProjection,
                                    String timezone,
                                    List<UserDefinedFunctionDescriptor> udfDescriptors,
                                    List<Object> udfFunctionInstances,
                                    org.apache.flink.cdc.common.source.SupportedMetadataColumn[] supportedMetadataColumns)

方法详细资料

hasTableInfo

public boolean hasTableInfo()

getTransformProjection

public TransformProjection getTransformProjection()

of

public static TransformProjectionProcessor of(PostTransformChangeInfo tableInfo,
                                              TransformProjection transformProjection,
                                              String timezone,
                                              List<UserDefinedFunctionDescriptor> udfDescriptors,
                                              List<Object> udfFunctionInstances,
                                              org.apache.flink.cdc.common.source.SupportedMetadataColumn[] supportedMetadataColumns)

of

public static TransformProjectionProcessor of(TransformProjection transformProjection,
                                              String timezone,
                                              List<UserDefinedFunctionDescriptor> udfDescriptors,
                                              List<Object> udfFunctionInstances,
                                              org.apache.flink.cdc.common.source.SupportedMetadataColumn[] supportedMetadataColumns)

of

public static TransformProjectionProcessor of(TransformProjection transformProjection,
                                              List<UserDefinedFunctionDescriptor> udfDescriptors,
                                              List<Object> udfFunctionInstances,
                                              org.apache.flink.cdc.common.source.SupportedMetadataColumn[] supportedMetadataColumns)

processSchema

public org.apache.flink.cdc.common.schema.Schema processSchema(org.apache.flink.cdc.common.schema.Schema schema,
                                                               org.apache.flink.cdc.common.source.SupportedMetadataColumn[] supportedMetadataColumns)

processData

public org.apache.flink.cdc.common.data.binary.BinaryRecordData processData(org.apache.flink.cdc.common.data.binary.BinaryRecordData payload,
                                                                            long epochTime,
                                                                            String opType,
                                                                            Map<String,String> meta)