Module org.neo4j.driver

Package org.neo4j.driver.exceptions

Class Neo4jException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

org.neo4j.driver.exceptions.Neo4jException

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

ClientException, DatabaseException, DiscoveryException, MessageIgnoredException, MinVersionAcquisitionException, ProtocolException, ServiceUnavailableException, SessionExpiredException, TransientException

public class Neo4jException
extends RuntimeException

This is the base class for Neo4j exceptions.

Since:

1.0

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
Neo4jException(String message)	Creates a new instance.
Neo4jException(String code, String message)	Creates a new instance.
Neo4jException(String gqlStatus, String statusDescription, String code, String message, Map<String,Value> diagnosticRecord, Throwable cause)	Creates a new instance.
Neo4jException(String code, String message, Throwable cause)	Creates a new instance.
Neo4jException(String message, Throwable cause)	Creates a new instance.

Method Summary

Modifier and Type	Method	Description
Optional<GqlStatusErrorClassification>	classification()	Returns the error classification as a GqlStatusErrorClassification enum value.
String	code()	Access the status code for this exception.
Map<String,Value>	diagnosticRecord()	Returns the GQL diagnostic record.
Optional<Neo4jException>	gqlCause()	Returns the GQL error cause.
String	gqlStatus()	Returns the GQLSTATUS as defined by the GQL standard.
Optional<String>	rawClassification()	Returns the error classification as a String value.
String	statusDescription()	Returns the GQLSTATUS description.

Methods inherited from class java.lang.Throwable

addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

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

Constructor Details

Neo4jException

public Neo4jException(String message)

Creates a new instance.

Parameters:

message - the message

Neo4jException

public Neo4jException(String message,
 Throwable cause)

Creates a new instance.

Parameters:

message - the message

cause - the cause

Neo4jException

public Neo4jException(String code,
 String message)

Creates a new instance.

Parameters:

code - the code

message - the message

Neo4jException

public Neo4jException(String code,
 String message,
 Throwable cause)

Creates a new instance.

Parameters:

code - the code

message - the message

cause - the cause

Neo4jException

@Preview(name="GQL-error")
public Neo4jException(String gqlStatus,
 String statusDescription,
 String code,
 String message,
 Map<String,Value> diagnosticRecord,
 Throwable cause)

Creates a new instance.

Parameters:

gqlStatus - the GQLSTATUS as defined by the GQL standard

statusDescription - the status description

code - the code

message - the message

diagnosticRecord - the diagnostic record

cause - the cause

Since:

5.26.0

Method Details

code

public String code()

Access the status code for this exception. The Neo4j manual can provide further details on the available codes and their meanings.

Returns:

textual code, such as "Neo.ClientError.Procedure.ProcedureNotFound"

gqlStatus

@Preview(name="GQL-error")
public String gqlStatus()

Returns the GQLSTATUS as defined by the GQL standard.

Returns:

the GQLSTATUS value

Since:

5.26.0

statusDescription

@Preview(name="GQL-error")
public String statusDescription()

Returns the GQLSTATUS description.

Returns:

the GQLSTATUS description

Since:

5.26.0

diagnosticRecord

@Preview(name="GQL-error")
public Map<String,Value> diagnosticRecord()

Returns the GQL diagnostic record.

Returns:

the GQL diagnostic record

Since:

5.26.0

classification

@Preview(name="GQL-error")
public Optional<GqlStatusErrorClassification> classification()

Returns the error classification as a GqlStatusErrorClassification enum value.

The enum value is parsed using the rawClassification() value. Optional.empty() is returned if the String value is missing or is unknown.

Returns:

an Optional error classification as a GqlStatusErrorClassification enum value

Since:

5.26.0

See Also:

• rawClassification()

rawClassification

@Preview(name="GQL-error")
public Optional<String> rawClassification()

Returns the error classification as a String value.

The value is extracted from the diagnosticRecord() map using "_classification" key and is expected to be of TypeSystem.STRING() type. Optional.empty() is returned if the value is missing or is of different type.

Returns:

an Optional error classification as a raw String

Since:

5.26.0

See Also:

• diagnosticRecord()

gqlCause

@Preview(name="GQL-error")
public Optional<Neo4jException> gqlCause()

Returns the GQL error cause.

Returns:

an Optional of GQL error cause

Since:

5.26.0