类的使用
org.apache.flink.cdc.runtime.operators.transform.UserDefinedFunctionDescriptor

使用UserDefinedFunctionDescriptor的程序包

程序包	说明
org.apache.flink.cdc.runtime.operators.transform
org.apache.flink.cdc.runtime.parser

org.apache.flink.cdc.runtime.operators.transform中UserDefinedFunctionDescriptor的使用

类型变量类型为UserDefinedFunctionDescriptor的org.apache.flink.cdc.runtime.operators.transform中的方法参数

限定符和类型	方法和说明
static org.codehaus.janino.ExpressionEvaluator	TransformExpressionCompiler.compileExpression(TransformExpressionKey key, List<UserDefinedFunctionDescriptor> udfDescriptors) Compiles an expression code to a janino ExpressionEvaluator.
static ProjectionColumnProcessor	ProjectionColumnProcessor.of(PostTransformChangeInfo tableInfo, ProjectionColumn projectionColumn, String timezone, List<UserDefinedFunctionDescriptor> udfDescriptors, List<Object> udfFunctionInstances, org.apache.flink.cdc.common.source.SupportedMetadataColumn[] supportedMetadataColumns)
static TransformFilterProcessor	TransformFilterProcessor.of(PostTransformChangeInfo tableInfo, TransformFilter transformFilter, String timezone, List<UserDefinedFunctionDescriptor> udfDescriptors, List<Object> udfFunctionInstances, org.apache.flink.cdc.common.source.SupportedMetadataColumn[] supportedMetadataColumns)
static TransformProjectionProcessor	TransformProjectionProcessor.of(PostTransformChangeInfo tableInfo, TransformProjection transformProjection, String timezone, List<UserDefinedFunctionDescriptor> udfDescriptors, List<Object> udfFunctionInstances, org.apache.flink.cdc.common.source.SupportedMetadataColumn[] supportedMetadataColumns)
static Optional<TransformFilter>	TransformFilter.of(String filterExpression, List<UserDefinedFunctionDescriptor> udfDescriptors)
static TransformProjectionProcessor	TransformProjectionProcessor.of(TransformProjection transformProjection, List<UserDefinedFunctionDescriptor> udfDescriptors, List<Object> udfFunctionInstances, org.apache.flink.cdc.common.source.SupportedMetadataColumn[] supportedMetadataColumns)
static TransformProjectionProcessor	TransformProjectionProcessor.of(TransformProjection transformProjection, String timezone, List<UserDefinedFunctionDescriptor> udfDescriptors, List<Object> udfFunctionInstances, org.apache.flink.cdc.common.source.SupportedMetadataColumn[] supportedMetadataColumns)

类型变量类型为UserDefinedFunctionDescriptor的org.apache.flink.cdc.runtime.operators.transform中的构造器参数

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

org.apache.flink.cdc.runtime.parser中UserDefinedFunctionDescriptor的使用

类型变量类型为UserDefinedFunctionDescriptor的org.apache.flink.cdc.runtime.parser中的方法参数

限定符和类型	方法和说明
static List<ProjectionColumn>	TransformParser.generateProjectionColumns(String projectionExpression, List<org.apache.flink.cdc.common.schema.Column> columns, List<UserDefinedFunctionDescriptor> udfDescriptors, org.apache.flink.cdc.common.source.SupportedMetadataColumn[] supportedMetadataColumns)
static String	TransformParser.translateFilterExpressionToJaninoExpression(String filterExpression, List<UserDefinedFunctionDescriptor> udfDescriptors)
static String	JaninoCompiler.translateSqlNodeToJaninoExpression(org.apache.calcite.sql.SqlNode transform, List<UserDefinedFunctionDescriptor> udfDescriptors)
static org.codehaus.janino.Java.Rvalue	JaninoCompiler.translateSqlNodeToJaninoRvalue(org.apache.calcite.sql.SqlNode transform, List<UserDefinedFunctionDescriptor> udfDescriptors)