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

类 TransformFilter

java.lang.Object

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

所有已实现的接口:

Serializable

public class TransformFilter
extends Object
implements Serializable

The TransformFilter applies to describe the information of the filter row.

A filter row contains:

• expression: a string for filter expression split from the user-defined filter.
• scriptExpression: a string for filter script expression compiled from the column expression.
• columnNames: a list for recording the name of all columns used by the filter expression.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
TransformFilter(String expression, String scriptExpression, List<String> columnNames)

方法概要

限定符和类型	方法和说明
List<String>	getColumnNames()
String	getExpression()
String	getScriptExpression()
boolean	isVaild()
static Optional<TransformFilter>	of(String filterExpression, List<UserDefinedFunctionDescriptor> udfDescriptors)

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

TransformFilter

public TransformFilter(String expression,
                       String scriptExpression,
                       List<String> columnNames)

方法详细资料

getExpression

public String getExpression()

getScriptExpression

public String getScriptExpression()

getColumnNames

public List<String> getColumnNames()

of

public static Optional<TransformFilter> of(String filterExpression,
                                           List<UserDefinedFunctionDescriptor> udfDescriptors)

isVaild

public boolean isVaild()