# Class NpgsqlJsonDbFunctionsTranslator

Namespace
  Npgsql.EntityFrameworkCore.PostgreSQL.Query.ExpressionTranslators.Internal

Assembly
  Npgsql.EntityFrameworkCore.PostgreSQL.dll

This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release.

    public class NpgsqlJsonDbFunctionsTranslator : IMethodCallTranslator

Inheritance
  object
  NpgsqlJsonDbFunctionsTranslator

Implements
  IMethodCallTranslator

Inherited Members
  object.Equals(object)
  object.Equals(object, object)
  object.GetHashCode()
  object.GetType()
  object.MemberwiseClone()
  object.ReferenceEquals(object, object)
  object.ToString()

## Constructors

### NpgsqlJsonDbFunctionsTranslator(IRelationalTypeMappingSource, NpgsqlSqlExpressionFactory, IModel)

This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release.

    public NpgsqlJsonDbFunctionsTranslator(IRelationalTypeMappingSource typeMappingSource, NpgsqlSqlExpressionFactory sqlExpressionFactory, IModel model)

#### Parameters

`typeMappingSource` IRelationalTypeMappingSource
`sqlExpressionFactory` NpgsqlSqlExpressionFactory
`model` IModel

## Methods

### Translate(SqlExpression?, MethodInfo, IReadOnlyList<SqlExpression>, IDiagnosticsLogger<Query>)

This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release.

    public virtual SqlExpression? Translate(SqlExpression? instance, MethodInfo method, IReadOnlyList<SqlExpression> arguments, IDiagnosticsLogger<DbLoggerCategory.Query> logger)

#### Parameters

`instance` SqlExpression
`method` MethodInfo
`arguments` IReadOnlyList<SqlExpression>
`logger` IDiagnosticsLogger<DbLoggerCategory.Query>

#### Returns

SqlExpression