接口的使用
org.apache.flink.table.expressions.ResolvedExpression

使用ResolvedExpression的程序包

程序包	说明
org.apache.flink.table.catalog
org.apache.flink.table.connector.format
org.apache.flink.table.connector.source.abilities
org.apache.flink.table.expressions
org.apache.flink.table.factories

org.apache.flink.table.catalog中ResolvedExpression的使用

返回ResolvedExpression的org.apache.flink.table.catalog中的方法

限定符和类型	方法和说明
ResolvedExpression	Column.ComputedColumn.getExpression()
ResolvedExpression	WatermarkSpec.getWatermarkExpression() Returns the ResolvedExpression for watermark generation.

参数类型为ResolvedExpression的org.apache.flink.table.catalog中的方法

限定符和类型	方法和说明
static Column.ComputedColumn	Column.computed(String name, ResolvedExpression expression) Creates a computed column that is computed from the given ResolvedExpression.
static WatermarkSpec	WatermarkSpec.of(String rowtimeAttribute, ResolvedExpression watermarkExpression)

org.apache.flink.table.connector.format中ResolvedExpression的使用

类型变量类型为ResolvedExpression的org.apache.flink.table.connector.format中的方法参数

限定符和类型	方法和说明
default void	BulkDecodingFormat.applyFilters(List<ResolvedExpression> filters) Provides a list of filters in conjunctive form for filtering on a best-effort basis.

org.apache.flink.table.connector.source.abilities中ResolvedExpression的使用

返回变量类型为ResolvedExpression的类型的org.apache.flink.table.connector.source.abilities中的方法

限定符和类型	方法和说明
List<ResolvedExpression>	SupportsFilterPushDown.Result.getAcceptedFilters()
List<ResolvedExpression>	SupportsFilterPushDown.Result.getRemainingFilters()

类型变量类型为ResolvedExpression的org.apache.flink.table.connector.source.abilities中的方法参数

限定符和类型	方法和说明
SupportsFilterPushDown.Result	SupportsFilterPushDown.applyFilters(List<ResolvedExpression> filters) Provides a list of filters in conjunctive form.
static SupportsFilterPushDown.Result	SupportsFilterPushDown.Result.of(List<ResolvedExpression> acceptedFilters, List<ResolvedExpression> remainingFilters) Constructs a filter push-down result.
static SupportsFilterPushDown.Result	SupportsFilterPushDown.Result.of(List<ResolvedExpression> acceptedFilters, List<ResolvedExpression> remainingFilters) Constructs a filter push-down result.

org.apache.flink.table.expressions中ResolvedExpression的使用

实现ResolvedExpression的org.apache.flink.table.expressions中的类

限定符和类型	类和说明
class	AggregateExpression Resolved and validated expression for calling an aggregate function.
class	CallExpression Resolved and validated call expression for calling a function.
class	FieldReferenceExpression A reference to a field in an input.
class	TypeLiteralExpression Expression that wraps DataType as a literal.
class	ValueLiteralExpression Expression for constant literal values.

返回变量类型为ResolvedExpression的类型的org.apache.flink.table.expressions中的方法

限定符和类型	方法和说明
List<ResolvedExpression>	CallExpression.getResolvedChildren()
List<ResolvedExpression>	ValueLiteralExpression.getResolvedChildren()
List<ResolvedExpression>	AggregateExpression.getResolvedChildren()
List<ResolvedExpression>	FieldReferenceExpression.getResolvedChildren()
List<ResolvedExpression>	ResolvedExpression.getResolvedChildren()
List<ResolvedExpression>	TypeLiteralExpression.getResolvedChildren()

类型变量类型为ResolvedExpression的org.apache.flink.table.expressions中的构造器参数

构造器和说明
CallExpression(FunctionDefinition functionDefinition, List<ResolvedExpression> args, DataType dataType)
CallExpression(FunctionIdentifier functionIdentifier, FunctionDefinition functionDefinition, List<ResolvedExpression> args, DataType dataType)

org.apache.flink.table.factories中ResolvedExpression的使用

返回变量类型为ResolvedExpression的类型的org.apache.flink.table.factories中的方法

限定符和类型	方法和说明
List<ResolvedExpression>	FileSystemFormatFactory.ReaderContext.getPushedDownFilters() Pushed down filters, reader can try its best to filter records.