Package org.apache.flink.table.runtime.functions

Class SqlJsonUtils

java.lang.Object

org.apache.flink.table.runtime.functions.SqlJsonUtils

@Internal
public class SqlJsonUtils
extends Object

Utilities for JSON functions.

Note that these methods are called from generated code.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	SqlJsonUtils.JsonQueryReturnType
static enum	SqlJsonUtils.PathMode	Path spec has two different modes: lax mode and strict mode.

Method Summary

Modifier and Type	Method	Description
static org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.node.ArrayNode	createArrayNode()	Returns a new ArrayNode.
static org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.node.ObjectNode	createObjectNode()	Returns a new ObjectNode.
static org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.node.JsonNodeFactory	getNodeFactory()	Returns the JsonNodeFactory for creating nodes.
static boolean	isJsonArray(String input)
static boolean	isJsonObject(String input)
static boolean	isJsonScalar(String input)
static boolean	isJsonValue(String input)
static Boolean	jsonExists(String input, String pathSpec)
static Boolean	jsonExists(String input, String pathSpec, org.apache.flink.table.api.JsonExistsOnError errorBehavior)
static Object	jsonQuery(String input, String pathSpec, SqlJsonUtils.JsonQueryReturnType returnType, org.apache.flink.table.api.JsonQueryWrapper wrapperBehavior, org.apache.flink.table.api.JsonQueryOnEmptyOrError emptyBehavior, org.apache.flink.table.api.JsonQueryOnEmptyOrError errorBehavior)
static Object	jsonValue(String input, String pathSpec, org.apache.flink.table.api.JsonValueOnEmptyOrError emptyBehavior, Object defaultValueOnEmpty, org.apache.flink.table.api.JsonValueOnEmptyOrError errorBehavior, Object defaultValueOnError)
static String	serializeJson(org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode node)	Serializes the given JsonNode to a JSON string.

Methods inherited from class java.lang.Object

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

Method Details

getNodeFactory

public static org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.node.JsonNodeFactory getNodeFactory()

Returns the JsonNodeFactory for creating nodes.

createObjectNode

public static org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.node.ObjectNode createObjectNode()

Returns a new ObjectNode.

createArrayNode

public static org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.node.ArrayNode createArrayNode()

Returns a new ArrayNode.

serializeJson

public static String serializeJson(org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode node)

Serializes the given JsonNode to a JSON string.

jsonExists

public static Boolean jsonExists(String input,
 String pathSpec)

jsonExists

public static Boolean jsonExists(String input,
 String pathSpec,
 org.apache.flink.table.api.JsonExistsOnError errorBehavior)

jsonValue

public static Object jsonValue(String input,
 String pathSpec,
 org.apache.flink.table.api.JsonValueOnEmptyOrError emptyBehavior,
 Object defaultValueOnEmpty,
 org.apache.flink.table.api.JsonValueOnEmptyOrError errorBehavior,
 Object defaultValueOnError)

jsonQuery

public static Object jsonQuery(String input,
 String pathSpec,
 SqlJsonUtils.JsonQueryReturnType returnType,
 org.apache.flink.table.api.JsonQueryWrapper wrapperBehavior,
 org.apache.flink.table.api.JsonQueryOnEmptyOrError emptyBehavior,
 org.apache.flink.table.api.JsonQueryOnEmptyOrError errorBehavior)

isJsonValue

public static boolean isJsonValue(String input)

isJsonObject

public static boolean isJsonObject(String input)

isJsonArray

public static boolean isJsonArray(String input)

isJsonScalar

public static boolean isJsonScalar(String input)