org.apache.flink.cdc.runtime.parser

Class TransformParser

java.lang.Object

org.apache.flink.cdc.runtime.parser.TransformParser

public class TransformParser
extends Object

Use Flink's calcite parser to parse the statement of flink cdc pipeline transform.

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFAULT_NAMESPACE_NAME
static String	DEFAULT_SCHEMA_NAME
static String	DEFAULT_TABLE_NAME

Constructor Summary

Constructors

Constructor and Description
TransformParser()

Method Summary

Modifier and Type	Method and Description
static List<ProjectionColumn>	generateProjectionColumns(String projectionExpression, List<org.apache.flink.cdc.common.schema.Column> columns)
static List<String>	parseComputedColumnNames(String projection)
static List<String>	parseFilterColumnNameList(String filterExpression)
static org.apache.calcite.sql.SqlSelect	parseFilterExpression(String filterExpression)
static org.apache.calcite.sql.SqlSelect	parseSelect(String statement)
static String	translateFilterExpressionToJaninoExpression(String filterExpression)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_NAMESPACE_NAME

public static final String DEFAULT_NAMESPACE_NAME

See Also:

Constant Field Values

DEFAULT_SCHEMA_NAME

public static final String DEFAULT_SCHEMA_NAME

See Also:

Constant Field Values

DEFAULT_TABLE_NAME

public static final String DEFAULT_TABLE_NAME

See Also:

Constant Field Values

Constructor Detail

TransformParser

public TransformParser()

Method Detail

parseSelect

public static org.apache.calcite.sql.SqlSelect parseSelect(String statement)

generateProjectionColumns

public static List<ProjectionColumn> generateProjectionColumns(String projectionExpression,
                                                               List<org.apache.flink.cdc.common.schema.Column> columns)

translateFilterExpressionToJaninoExpression

public static String translateFilterExpressionToJaninoExpression(String filterExpression)

parseComputedColumnNames

public static List<String> parseComputedColumnNames(String projection)

parseFilterColumnNameList

public static List<String> parseFilterColumnNameList(String filterExpression)

parseFilterExpression

public static org.apache.calcite.sql.SqlSelect parseFilterExpression(String filterExpression)