Class MappingSchemaExtensions

Inheritance
object
MappingSchemaExtensions
Namespace: LinqToDB.Tools
Assembly: linq2db.Tools.dll
Syntax
public static class MappingSchemaExtensions

Methods

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GetEntityEqualityComparer<T>(IDataContext)

Returns implementations of the IEqualityComparer<T> generic interface based on provided entity columns equality.

Declaration
public static IEqualityComparer<T> GetEntityEqualityComparer<T>(this IDataContext dataContext)
Parameters
Type Name Description
IDataContext dataContext

Instance of IDataContext.
Returns
Type Description
IEqualityComparer<T>

Instance of IEqualityComparer<T>.
Type Parameters
Name Description
T

The type of entity to compare.
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GetEntityEqualityComparer<T>(ITable<T>)

Returns implementations of the IEqualityComparer<T> generic interface based on provided entity columns equality.

Declaration
public static IEqualityComparer<T> GetEntityEqualityComparer<T>(this ITable<T> table) where T : notnull
Parameters
Type Name Description
ITable<T> table

Instance of ITable<T>.
Returns
Type Description
IEqualityComparer<T>

Instance of IEqualityComparer<T>.
Type Parameters
Name Description
T

The type of entity to compare.
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GetEntityEqualityComparer<T>(MappingSchema)

Returns implementations of the IEqualityComparer<T> generic interface based on provided entity columns equality.

Declaration
public static IEqualityComparer<T> GetEntityEqualityComparer<T>(this MappingSchema mappingSchema)
Parameters
Type Name Description
MappingSchema mappingSchema

Instance of MappingSchema.
Returns
Type Description
IEqualityComparer<T>

Instance of IEqualityComparer<T>.
Type Parameters
Name Description
T

The type of entity to compare.
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GetEqualityComparer<T>(IDataContext, Func<ColumnDescriptor, bool>)

Returns implementations of the IEqualityComparer<T> generic interface based on provided entity columns equality.

Declaration
public static IEqualityComparer<T> GetEqualityComparer<T>(this IDataContext dataContext, Func<ColumnDescriptor, bool> columnPredicate)
Parameters
Type Name Description
IDataContext dataContext

Instance of IDataContext.
Func<ColumnDescriptor, bool> columnPredicate

A function to filter columns to compare.
Returns
Type Description
IEqualityComparer<T>

Instance of IEqualityComparer<T>.
Type Parameters
Name Description
T

The type of entity to compare.
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GetEqualityComparer<T>(ITable<T>, Func<ColumnDescriptor, bool>)

Returns implementations of the IEqualityComparer<T> generic interface based on provided entity columns equality.

Declaration
public static IEqualityComparer<T> GetEqualityComparer<T>(this ITable<T> table, Func<ColumnDescriptor, bool> columnPredicate) where T : notnull
Parameters
Type Name Description
ITable<T> table

Instance of ITable<T>.
Func<ColumnDescriptor, bool> columnPredicate

A function to filter columns to compare.
Returns
Type Description
IEqualityComparer<T>

Instance of IEqualityComparer<T>.
Type Parameters
Name Description
T

The type of entity to compare.
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GetEqualityComparer<T>(MappingSchema, Func<ColumnDescriptor, bool>)

Returns implementations of the IEqualityComparer<T> generic interface based on provided entity columns equality.

Declaration
public static IEqualityComparer<T> GetEqualityComparer<T>(this MappingSchema mappingSchema, Func<ColumnDescriptor, bool> columnPredicate)
Parameters
Type Name Description
MappingSchema mappingSchema

Instance of MappingSchema.
Func<ColumnDescriptor, bool> columnPredicate

A function to filter columns to compare.
Returns
Type Description
IEqualityComparer<T>

Instance of IEqualityComparer<T>.
Type Parameters
Name Description
T

The type of entity to compare.
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GetKeyEqualityComparer<T>(IDataContext)

Returns implementations of the IEqualityComparer<T> generic interface based on provided entity primary key columns equality.

Declaration
public static IEqualityComparer<T> GetKeyEqualityComparer<T>(this IDataContext dataContext)
Parameters
Type Name Description
IDataContext dataContext

Instance of IDataContext.
Returns
Type Description
IEqualityComparer<T>

Instance of IEqualityComparer<T>.
Type Parameters
Name Description
T

The type of entity to compare.
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GetKeyEqualityComparer<T>(ITable<T>)

Returns implementations of the IEqualityComparer<T> generic interface based on provided entity primary key columns equality.

Declaration
public static IEqualityComparer<T> GetKeyEqualityComparer<T>(this ITable<T> table) where T : notnull
Parameters
Type Name Description
ITable<T> table

Instance of ITable<T>.
Returns
Type Description
IEqualityComparer<T>

Instance of IEqualityComparer<T>.
Type Parameters
Name Description
T

The type of entity to compare.
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GetKeyEqualityComparer<T>(MappingSchema)

Returns implementations of the IEqualityComparer<T> generic interface based on provided entity primary key columns equality.

Declaration
public static IEqualityComparer<T> GetKeyEqualityComparer<T>(this MappingSchema mappingSchema)
Parameters
Type Name Description
MappingSchema mappingSchema

Instance of MappingSchema.
Returns
Type Description
IEqualityComparer<T>

Instance of IEqualityComparer<T>.
Type Parameters
Name Description
T

The type of entity to compare.