apache/seatunnel · error · UnsupportedOperationException

setTypeInfo method is not supported

Error message

setTypeInfo method is not supported

What it means

SeaTunnelTransform.setTypeInfo is the deprecated pre-Factory-API way to declare a transform's input type. The default implementation throws UnsupportedOperationException to signal that the transform does not support the legacy type-setting path, forcing migration to the Factory-based SPI.

Source

Thrown at seatunnel-api/src/main/java/org/apache/seatunnel/api/transform/SeaTunnelTransform.java:43

import java.io.Serializable;
import java.util.List;

public interface SeaTunnelTransform<T>
        extends Serializable, PluginIdentifierInterface, SeaTunnelJobAware {

    /** call it when Transformer initialed */
    default void open() {}

    /**
     * Set the data type info of input data.
     *
     * @deprecated instead by {@link org.apache.seatunnel.api.table.factory.Factory}
     * @param inputDataType The data type info of upstream input.
     */
    @Deprecated
    default void setTypeInfo(SeaTunnelDataType<T> inputDataType) {
        throw new UnsupportedOperationException("setTypeInfo method is not supported");
    }

    /** Get the catalog table output by this transform */
    CatalogTable getProducedCatalogTable();

    List<CatalogTable> getProducedCatalogTables();

    default SchemaChangeEvent mapSchemaChangeEvent(SchemaChangeEvent schemaChangeEvent) {
        return schemaChangeEvent;
    }

    /**
     * Called by the engine when an upstream transform's produced schema changes (e.g., after a
     * schema-change event flows through the chain). Allows this transform to re-derive its state
     * from the new upstream layout instead of applying schema changes to a stale local view.
     *
     * <p>Without this, downstream transforms in a chain accumulate divergence: each one applies the
     * ALTER event locally (appending new cols at end of its own catalog), but the actual data row

View on GitHub (pinned to cf67b549a7)

Solutions

1. Migrate the calling code to the Factory API: implement a TransformFactory and rely on applyTransform(...) instead of setTypeInfo
2. If implementing a transform that still needs this path, override setTypeInfo to accept the input SeaTunnelDataType
3. Update the job/config to a path that resolves the transform via its factory

Example fix

// before
transform.setTypeInfo(catalogTable.getSeaTunnelRowType());
// after
DataChangeEvent via factory:
TableTransformFactory factory = (TableTransformFactory) discovery.get(TableTransformFactory.class.getSimpleName());
Transform transform = factory.applyTransform(context);

// prefer the Factory API; only call setTypeInfo if the transform is legacy
if (transform.getClass().isAnnotationPresent(Deprecated.class)) { transform.setTypeInfo(inputType); }

try { transform.setTypeInfo(inputType); } catch (UnsupportedOperationException e) { // transform uses Factory API; obtain type via transform.getProducedCatalogTable() }

When it happens

Trigger: Calling setTypeInfo(...) on a transform implementation that does not override the default method (any modern transform using the Factory API) — typically from legacy translation/adapter code or old connector code written against the pre-2.3 API.

Common situations: Running old Flink/Spark translation code against a modern transform; a custom transform invoked through a legacy code path; following outdated examples that predate the CatalogTable/Factory refactor.

Understand the failure class

Background: "is deprecated and will be removed" — deprecation warnings for old API names, keywords, and options, and how to migrate before the removal release — this error's family across 29 libraries.

Related errors

• The Factory has not been implemented and the deprecated Plug
• A decoding format must override this method to apply metadat
• Unsupported convert %s to %s
• Unsupported convert ${value.getClass()} to Float, typeDefine
• Unsupported convert ${value.getClass()} to Float

AI-assisted analysis of apache/seatunnel@cf67b549a7 (2026-09-10). Data as JSON: /api/errors/ffaee26ab6e62fd1. Report an issue: GitHub.