org.apache.flink.formats.json

类 JsonRowDataDeserializationSchema

java.lang.Object

org.apache.flink.formats.json.JsonRowDataDeserializationSchema

所有已实现的接口:

Serializable, org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData>, org.apache.flink.api.java.typeutils.ResultTypeQueryable<org.apache.flink.table.data.RowData>

@Internal
public class JsonRowDataDeserializationSchema
extends Object
implements org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData>

Deserialization schema from JSON to Flink Table/SQL internal data structure RowData.

Deserializes a byte[] message as a JSON object and reads the specified fields.

Failures during deserialization are forwarded as wrapped IOExceptions.

另请参阅:

序列化表格

嵌套类概要

从接口继承的嵌套类/接口 org.apache.flink.api.common.serialization.DeserializationSchema

org.apache.flink.api.common.serialization.DeserializationSchema.InitializationContext

构造器概要

构造器

构造器和说明
JsonRowDataDeserializationSchema(org.apache.flink.table.types.logical.RowType rowType, org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData> resultTypeInfo, boolean failOnMissingField, boolean ignoreParseErrors, org.apache.flink.formats.common.TimestampFormat timestampFormat)

方法概要

限定符和类型	方法和说明
org.apache.flink.table.data.RowData	convertToRowData(org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode message)
org.apache.flink.table.data.RowData	deserialize(byte[] message)
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode	deserializeToJsonNode(byte[] message)
boolean	equals(Object o)
org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData>	getProducedType()
int	hashCode()
boolean	isEndOfStream(org.apache.flink.table.data.RowData nextElement)
void	open(org.apache.flink.api.common.serialization.DeserializationSchema.InitializationContext context)

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.api.common.serialization.DeserializationSchema

deserialize

构造器详细资料

JsonRowDataDeserializationSchema

public JsonRowDataDeserializationSchema(org.apache.flink.table.types.logical.RowType rowType,
                                        org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData> resultTypeInfo,
                                        boolean failOnMissingField,
                                        boolean ignoreParseErrors,
                                        org.apache.flink.formats.common.TimestampFormat timestampFormat)

方法详细资料

open

public void open(org.apache.flink.api.common.serialization.DeserializationSchema.InitializationContext context)
          throws Exception

指定者:

open 在接口中 org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData>

抛出:

Exception

deserialize

public org.apache.flink.table.data.RowData deserialize(@Nullable
                                                       byte[] message)
                                                throws IOException

指定者:

deserialize 在接口中 org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData>

抛出:

IOException

deserializeToJsonNode

public org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode deserializeToJsonNode(byte[] message)
                                                                                               throws IOException

抛出:

IOException

convertToRowData

public org.apache.flink.table.data.RowData convertToRowData(org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode message)

isEndOfStream

public boolean isEndOfStream(org.apache.flink.table.data.RowData nextElement)

指定者:

isEndOfStream 在接口中 org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData>

getProducedType

public org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData> getProducedType()

指定者:

getProducedType 在接口中 org.apache.flink.api.java.typeutils.ResultTypeQueryable<org.apache.flink.table.data.RowData>

equals

public boolean equals(Object o)

覆盖:

equals 在类中 Object

hashCode

public int hashCode()

覆盖:

hashCode 在类中 Object