Class DataMigration

Data migration class performs data level modifications (change member type, migrate member, update member, rename member, delete member etc).

Inheritance

System.Object

ClassMigrationBase

InstanceMigration

DataMigration

Implements

Inherited Members

InstanceMigration.MigrateReference(MigrationContext)

InstanceMigration.CompatibleSchemaTypes

ClassMigrationBase.Migrate(MigrationContext)

ClassMigrationBase.MigrationManager

Namespace: Eco.Core.Serialization.Migrations

Assembly: Eco.Core.dll

Syntax

public class DataMigration : InstanceMigration, IInstanceMigration, IReferenceMigration, IClassMigration, IMigration

Constructors

DataMigration(IEnumerable<String>)

Declaration

public DataMigration(IEnumerable<string> compatibleTypes)

Parameters

Type	Name	Description
System.Collections.Generic.IEnumerable<System.String>	compatibleTypes

DataMigration(String)

Declaration

public DataMigration(string compatibleType)

Parameters

Type	Name	Description
System.String	compatibleType

Methods

AddMember(String, IDataInput[], Func<ReaderDataInput[], ReaderDataInput>)

Declaration

public void AddMember(string memberName, IDataInput[] dependencies, Func<ReaderDataInput[], ReaderDataInput> addMember)

Parameters

Type	Name	Description
System.String	memberName
IDataInput[]	dependencies
System.Func<ReaderDataInput[], ReaderDataInput>	addMember

AddMember<TDst>(String, IDataInput[], Func<ReaderDataInput[], TDst>)

Declaration

public void AddMember<TDst>(string memberName, IDataInput[] dependencies, Func<ReaderDataInput[], TDst> addMember)

Parameters

Type	Name	Description
System.String	memberName
IDataInput[]	dependencies
System.Func<ReaderDataInput[], TDst>	addMember

Type Parameters

Name	Description
TDst

AddPrecondition(IDataInput[], Predicate<Object[]>)

Adds pre-condition for data migration. If pre-condition fails then migration will not be applied.

Declaration

public void AddPrecondition(IDataInput[] inputs, Predicate<object[]> predicate)

Parameters

Type	Name	Description
IDataInput[]	inputs
System.Predicate<System.Object[]>	predicate

AddPrecondition(IEnumerable<String>, Predicate<Object[]>)

Adds pre-condition for data migration. If pre-condition fails then migration will not be applied.

Declaration

public void AddPrecondition(IEnumerable<string> argMembers, Predicate<object[]> predicate)

Parameters

Type	Name	Description
System.Collections.Generic.IEnumerable<System.String>	argMembers
System.Predicate<System.Object[]>	predicate

AddPrecondition<T>(String, Predicate<T>)

Adds pre-condition for data migration. If pre-condition fails then migration will not be applied.

Declaration

public void AddPrecondition<T>(string memberName, Predicate<T> predicate)

Parameters

Type	Name	Description
System.String	memberName
System.Predicate<T>	predicate

Type Parameters

Name	Description
T

AddReferenceMember(String, String, IDataInput[], Func<ReaderDataInput[], (String, Int32)>)

Declaration

public void AddReferenceMember(string memberName, string memberSchemaType, IDataInput[] dependencies, Func<ReaderDataInput[], (string, int)> referenceGenerator)

Parameters

Type	Name	Description
System.String	memberName
System.String	memberSchemaType
IDataInput[]	dependencies
System.Func<ReaderDataInput[], System.ValueTuple<System.String, System.Int32>>	referenceGenerator

ChangeMemberSchemaType(String, String, Boolean)

Declaration

public void ChangeMemberSchemaType(string memberName, string newSchemaType, bool skipIfMissing = false)

Parameters

Type	Name	Description
System.String	memberName
System.String	newSchemaType
System.Boolean	skipIfMissing

ChangeSchemaType(String)

Changes class schema type to newSchemaType. I.e. after all members converted you may decide to convert class itself to another type.

Declaration

public void ChangeSchemaType(string newSchemaType)

Parameters

Type	Name	Description
System.String	newSchemaType

Initialize(MigrationManager)

Declaration

public override void Initialize(MigrationManager migrationManager)

Parameters

Type	Name	Description
MigrationManager	migrationManager

Overrides

ClassMigrationBase.Initialize(MigrationManager)

Member(String)

Declaration

public MemberDataInput Member(string name)

Parameters

Type	Name	Description
System.String	name

Returns

Type	Description
MemberDataInput

MigrateInstance(MigrationContext)

Declaration

public override void MigrateInstance(MigrationContext context)

Parameters

Type	Name	Description
MigrationContext	context

Overrides

ClassMigrationBase.MigrateInstance(MigrationContext)

MigrateMember(String, IMigration, Boolean)

Declaration

public void MigrateMember(string memberName, IMigration migration, bool skipIfMissing = false)

Parameters

Type	Name	Description
System.String	memberName
IMigration	migration
System.Boolean	skipIfMissing

RenameMember(String, String, Boolean)

Declaration

public void RenameMember(string oldMemberName, string newMemberName, bool skipIfMissing = false)

Parameters

Type	Name	Description
System.String	oldMemberName
System.String	newMemberName
System.Boolean	skipIfMissing

ReplaceMember(String, IDataInput[], Func<ReaderDataInput[], ReaderDataInput>)

Declaration

public void ReplaceMember(string memberName, IDataInput[] dependencies, Func<ReaderDataInput[], ReaderDataInput> memberGenerator)

Parameters

Type	Name	Description
System.String	memberName
IDataInput[]	dependencies
System.Func<ReaderDataInput[], ReaderDataInput>	memberGenerator

ReplaceMember<TDst>(String, IDataInput[], Func<ReaderDataInput[], TDst>)

Declaration

public void ReplaceMember<TDst>(string memberName, IDataInput[] dependencies, Func<ReaderDataInput[], TDst> memberGenerator)

Parameters

Type	Name	Description
System.String	memberName
IDataInput[]	dependencies
System.Func<ReaderDataInput[], TDst>	memberGenerator

Type Parameters

Name	Description
TDst

UpdateMember(String, IDataInput[], Func<ReaderDataInput, ReaderDataInput[], ReaderDataInput>)

Declaration

public void UpdateMember(string memberName, IDataInput[] dependencies, Func<ReaderDataInput, ReaderDataInput[], ReaderDataInput> updateMember)

Parameters

Type	Name	Description
System.String	memberName
IDataInput[]	dependencies
System.Func<ReaderDataInput, ReaderDataInput[], ReaderDataInput>	updateMember

UpdateMember<TSrc, TDst>(String, IDataInput[], Func<TSrc, ReaderDataInput[], TDst>, Func<TDst>)

Declaration

public void UpdateMember<TSrc, TDst>(string memberName, IDataInput[] dependencies, Func<TSrc, ReaderDataInput[], TDst> updateMember, Func<TDst> whenMissing = null)

Parameters

Type	Name	Description
System.String	memberName
IDataInput[]	dependencies
System.Func<TSrc, ReaderDataInput[], TDst>	updateMember
System.Func<TDst>	whenMissing

Type Parameters

Name	Description
TSrc
TDst

UpdateMember<TSrc, TDst>(String, Func<TSrc, TDst>)

Updates member by converting old value to new value. Member schema type changes accordingly.

Declaration

public void UpdateMember<TSrc, TDst>(string memberName, Func<TSrc, TDst> updateMember)

Parameters

Type	Name	Description
System.String	memberName
System.Func<TSrc, TDst>	updateMember

Type Parameters

Name	Description
TSrc
TDst

UpdateMember<TSrc, TDst>(String, String[], Func<TSrc, Object[], TDst>)

Declaration

public void UpdateMember<TSrc, TDst>(string memberName, string[] dependencies, Func<TSrc, object[], TDst> updateMember)

Parameters

Type	Name	Description
System.String	memberName
System.String[]	dependencies
System.Func<TSrc, System.Object[], TDst>	updateMember

Type Parameters

Name	Description
TSrc
TDst

UpdateMemberFromDataInput<TDst>(String, IDataInput[], Func<ReaderDataInput, ReaderDataInput[], TDst>)

Updates member using ReaderDataInput as original value. It produces value of TDst type.

Declaration

public void UpdateMemberFromDataInput<TDst>(string memberName, IDataInput[] dependencies, Func<ReaderDataInput, ReaderDataInput[], TDst> updateMember)