com.dynamic.sql.core.column.function.table

Class JsonTable

java.lang.Object

com.dynamic.sql.core.column.function.table.AbstractTableFunction

com.dynamic.sql.core.column.function.table.JsonTable

All Implemented Interfaces:

TableFunction

public class JsonTable
extends AbstractTableFunction

 
 JSON_TABLE(
   expr,
   path COLUMNS (
     column_name type PATH path [DEFAULT expr ON ERROR] [DEFAULT expr ON EMPTY],
     ...
   )
 )
 
 

• expr: 是一个 JSON 数据的表达式，通常是 JSON 列或者 JSON 结构。
• path: 是 JSON 数据的路径，指定要提取的 JSON 数据位置。
• COLUMNS: 用于定义结果中的列，并指定从 JSON 中提取的数据。

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	JsonTable.JsonColumn if (jsonColumn == null && jsonColumn.length <= 0) { throw new IllegalArgumentException("The extracted Json column must be declared"); }
static class	JsonTable.JsonColumnBuilder

Field Summary

Fields inherited from class com.dynamic.sql.core.column.function.table.AbstractTableFunction

tableFunction

Constructor Summary

Constructors

Constructor and Description
JsonTable(FieldFn<T,F> fn, String path, JsonTable.JsonColumn... jsonColumn)
JsonTable(String tableAlias, FieldFn<T,F> fn, String path, JsonTable.JsonColumn... jsonColumn)
JsonTable(String columnName, String path, JsonTable.JsonColumn... jsonColumn)
JsonTable(String tableAlias, String columnName, String path, JsonTable.JsonColumn... jsonColumn)
JsonTable(TableFunction tableFunction, String path, JsonTable.JsonColumn... jsonColumn)

Method Summary

Modifier and Type	Method and Description
String	getFunctionToString(SqlDialect sqlDialect, Version version)
ParameterBinder	getParameterBinder()

Methods inherited from class com.dynamic.sql.core.column.function.table.AbstractTableFunction

getOriginColumnFn

Methods inherited from class java.lang.Object

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

Constructor Detail

JsonTable

public JsonTable(TableFunction tableFunction,
                 String path,
                 JsonTable.JsonColumn... jsonColumn)

JsonTable

public JsonTable(FieldFn<T,F> fn,
                 String path,
                 JsonTable.JsonColumn... jsonColumn)

JsonTable

public JsonTable(String tableAlias,
                 FieldFn<T,F> fn,
                 String path,
                 JsonTable.JsonColumn... jsonColumn)

JsonTable

public JsonTable(String columnName,
                 String path,
                 JsonTable.JsonColumn... jsonColumn)

JsonTable

public JsonTable(String tableAlias,
                 String columnName,
                 String path,
                 JsonTable.JsonColumn... jsonColumn)

Method Detail

getFunctionToString

public String getFunctionToString(SqlDialect sqlDialect,
                                  Version version)
                           throws UnsupportedOperationException

Throws:

UnsupportedOperationException

getParameterBinder

public ParameterBinder getParameterBinder()