Table of Contents

Class DeleteEntityBuilder<TEntity>

Namespace
FluentCommand.Query
Assembly
FluentCommand.dll

Provides a builder for constructing SQL DELETE statements for a specific entity type with fluent, chainable methods.

public class DeleteEntityBuilder<TEntity> : DeleteBuilder<DeleteEntityBuilder<TEntity>>, IStatementBuilder, IQueryBuilder, IWhereEntityBuilder<TEntity, DeleteEntityBuilder<TEntity>> where TEntity : class

Type Parameters

TEntity

The type of the entity.

Inheritance
DeleteEntityBuilder<TEntity>
Implements
Inherited Members

Constructors

DeleteEntityBuilder(IQueryGenerator, List<QueryParameter>, LogicalOperators)

Initializes a new instance of the DeleteEntityBuilder<TEntity> class.

public DeleteEntityBuilder(IQueryGenerator queryGenerator, List<QueryParameter> parameters, LogicalOperators logicalOperator = LogicalOperators.And)

Parameters

queryGenerator IQueryGenerator

The IQueryGenerator used to generate SQL expressions.

parameters List<QueryParameter>

The list of QueryParameter objects for the query.

logicalOperator LogicalOperators

The logical operator (LogicalOperators) to combine WHERE expressions. Defaults to And.

Methods

BuildStatement()

Builds the SQL DELETE statement using the current configuration.

public override QueryStatement BuildStatement()

Returns

QueryStatement

A QueryStatement containing the SQL DELETE statement and its parameters.

From(string, string, string)

Sets the target table for the DELETE statement using the entity's mapping information by default.

public override DeleteEntityBuilder<TEntity> From(string tableName = null, string tableSchema = null, string tableAlias = null)

Parameters

tableName string

The name of the table (optional, defaults to entity mapping).

tableSchema string

The schema of the table (optional, defaults to entity mapping).

tableAlias string

The alias for the table (optional).

Returns

DeleteEntityBuilder<TEntity>

The same builder instance for method chaining.

Join<TRight>(Action<JoinEntityBuilder<TEntity, TRight>>)

Adds a JOIN clause to the DELETE statement using the specified builder action for the right entity.

public DeleteEntityBuilder<TEntity> Join<TRight>(Action<JoinEntityBuilder<TEntity, TRight>> builder) where TRight : class

Parameters

builder Action<JoinEntityBuilder<TEntity, TRight>>

An action that configures the join using a JoinEntityBuilder<TLeft, TRight>.

Returns

DeleteEntityBuilder<TEntity>

The same builder instance for method chaining.

Type Parameters

TRight

The type of the right join entity.

Join<TLeft, TRight>(Action<JoinEntityBuilder<TLeft, TRight>>)

Adds a JOIN clause to the DELETE statement using the specified builder action for the left and right entities.

public DeleteEntityBuilder<TEntity> Join<TLeft, TRight>(Action<JoinEntityBuilder<TLeft, TRight>> builder) where TLeft : class where TRight : class

Parameters

builder Action<JoinEntityBuilder<TLeft, TRight>>

An action that configures the join using a JoinEntityBuilder<TLeft, TRight>.

Returns

DeleteEntityBuilder<TEntity>

The same builder instance for method chaining.

Type Parameters

TLeft

The type of the left join entity.

TRight

The type of the right join entity.

OutputIf<TValue>(Expression<Func<TEntity, TValue>>, string, string, Func<string, bool>)

Conditionally adds an OUTPUT clause for the specified entity property if the condition is met.

public DeleteEntityBuilder<TEntity> OutputIf<TValue>(Expression<Func<TEntity, TValue>> property, string tableAlias = null, string columnAlias = null, Func<string, bool> condition = null)

Parameters

property Expression<Func<TEntity, TValue>>

An expression selecting the property to output.

tableAlias string

The alias for the table (optional).

columnAlias string

The alias for the output column (optional).

condition Func<string, bool>

A function that determines whether to add the OUTPUT clause. If null, the clause is always added.

Returns

DeleteEntityBuilder<TEntity>

The same builder instance for method chaining.

Type Parameters

TValue

The type of the property value.

Output<TValue>(Expression<Func<TEntity, TValue>>, string, string)

Adds an OUTPUT clause for the specified entity property.

public DeleteEntityBuilder<TEntity> Output<TValue>(Expression<Func<TEntity, TValue>> property, string tableAlias = null, string columnAlias = null)

Parameters

property Expression<Func<TEntity, TValue>>

An expression selecting the property to output.

tableAlias string

The alias for the table (optional).

columnAlias string

The alias for the output column (optional).

Returns

DeleteEntityBuilder<TEntity>

The same builder instance for method chaining.

Type Parameters

TValue

The type of the property value.

WhereAnd(Action<LogicalEntityBuilder<TEntity>>)

Adds a logical AND group to the WHERE clause using the specified builder action.

public DeleteEntityBuilder<TEntity> WhereAnd(Action<LogicalEntityBuilder<TEntity>> builder)

Parameters

builder Action<LogicalEntityBuilder<TEntity>>

An action that configures the logical AND group using a LogicalEntityBuilder<TEntity>.

Returns

DeleteEntityBuilder<TEntity>

The same builder instance for method chaining.

WhereIf<TValue>(Expression<Func<TEntity, TValue>>, TValue, FilterOperators, Func<string, TValue, bool>)

Conditionally adds a WHERE clause for the specified property, value, and filter operator.

public DeleteEntityBuilder<TEntity> WhereIf<TValue>(Expression<Func<TEntity, TValue>> property, TValue parameterValue, FilterOperators filterOperator = FilterOperators.Equal, Func<string, TValue, bool> condition = null)

Parameters

property Expression<Func<TEntity, TValue>>

An expression selecting the property to filter on.

parameterValue TValue

The value to compare the property against.

filterOperator FilterOperators

The filter operator to use (default is Equal).

condition Func<string, TValue, bool>

A function that determines whether to add the clause, based on the property name and value. If null, the clause is always added.

Returns

DeleteEntityBuilder<TEntity>

The same builder instance for method chaining.

Type Parameters

TValue

The type of the value to compare.

WhereIf<TValue>(Expression<Func<TEntity, TValue>>, TValue, string, FilterOperators, Func<string, TValue, bool>)

Conditionally adds a WHERE clause for the specified property, value, filter operator, and table alias.

public DeleteEntityBuilder<TEntity> WhereIf<TValue>(Expression<Func<TEntity, TValue>> property, TValue parameterValue, string tableAlias, FilterOperators filterOperator = FilterOperators.Equal, Func<string, TValue, bool> condition = null)

Parameters

property Expression<Func<TEntity, TValue>>

An expression selecting the property to filter on.

parameterValue TValue

The value to compare the property against.

tableAlias string

The table alias to use in the query.

filterOperator FilterOperators

The filter operator to use (default is Equal).

condition Func<string, TValue, bool>

A function that determines whether to add the clause, based on the table alias and value. If null, the clause is always added.

Returns

DeleteEntityBuilder<TEntity>

The same builder instance for method chaining.

Type Parameters

TValue

The type of the value to compare.

WhereInIf<TValue>(Expression<Func<TEntity, TValue>>, IEnumerable<TValue>, Func<string, IEnumerable<TValue>, bool>)

Conditionally adds a WHERE IN clause for the specified property and collection of values.

public DeleteEntityBuilder<TEntity> WhereInIf<TValue>(Expression<Func<TEntity, TValue>> property, IEnumerable<TValue> parameterValues, Func<string, IEnumerable<TValue>, bool> condition = null)

Parameters

property Expression<Func<TEntity, TValue>>

An expression selecting the property to filter on.

parameterValues IEnumerable<TValue>

The collection of values for the IN clause.

condition Func<string, IEnumerable<TValue>, bool>

A function that determines whether to add the clause, based on the property name and values. If null, the clause is always added.

Returns

DeleteEntityBuilder<TEntity>

The same builder instance for method chaining.

Type Parameters

TValue

The type of the values to compare.

WhereInIf<TValue>(Expression<Func<TEntity, TValue>>, IEnumerable<TValue>, string, Func<string, IEnumerable<TValue>, bool>)

Conditionally adds a WHERE IN clause for the specified property, collection of values, and table alias.

public DeleteEntityBuilder<TEntity> WhereInIf<TValue>(Expression<Func<TEntity, TValue>> property, IEnumerable<TValue> parameterValues, string tableAlias, Func<string, IEnumerable<TValue>, bool> condition = null)

Parameters

property Expression<Func<TEntity, TValue>>

An expression selecting the property to filter on.

parameterValues IEnumerable<TValue>

The collection of values for the IN clause.

tableAlias string

The table alias to use in the query.

condition Func<string, IEnumerable<TValue>, bool>

A function that determines whether to add the clause, based on the table alias and values. If null, the clause is always added.

Returns

DeleteEntityBuilder<TEntity>

The same builder instance for method chaining.

Type Parameters

TValue

The type of the values to compare.

WhereIn<TValue>(Expression<Func<TEntity, TValue>>, IEnumerable<TValue>, string)

Adds a WHERE IN clause for the specified property and collection of values, with an optional table alias.

public DeleteEntityBuilder<TEntity> WhereIn<TValue>(Expression<Func<TEntity, TValue>> property, IEnumerable<TValue> parameterValues, string tableAlias = null)

Parameters

property Expression<Func<TEntity, TValue>>

An expression selecting the property to filter on.

parameterValues IEnumerable<TValue>

The collection of values for the IN clause.

tableAlias string

The table alias to use in the query (optional).

Returns

DeleteEntityBuilder<TEntity>

The same builder instance for method chaining.

Type Parameters

TValue

The type of the values to compare.

WhereOr(Action<LogicalEntityBuilder<TEntity>>)

Adds a logical OR group to the WHERE clause using the specified builder action.

public DeleteEntityBuilder<TEntity> WhereOr(Action<LogicalEntityBuilder<TEntity>> builder)

Parameters

builder Action<LogicalEntityBuilder<TEntity>>

An action that configures the logical OR group using a LogicalEntityBuilder<TEntity>.

Returns

DeleteEntityBuilder<TEntity>

The same builder instance for method chaining.

Where<TValue>(Expression<Func<TEntity, TValue>>, TValue, FilterOperators)

Adds a WHERE clause for the specified property, value, and filter operator.

public DeleteEntityBuilder<TEntity> Where<TValue>(Expression<Func<TEntity, TValue>> property, TValue parameterValue, FilterOperators filterOperator = FilterOperators.Equal)

Parameters

property Expression<Func<TEntity, TValue>>

An expression selecting the property to filter on.

parameterValue TValue

The value to compare the property against.

filterOperator FilterOperators

The filter operator to use (default is Equal).

Returns

DeleteEntityBuilder<TEntity>

The same builder instance for method chaining.

Type Parameters

TValue

The type of the value to compare.

Where<TValue>(Expression<Func<TEntity, TValue>>, TValue, string, FilterOperators)

Adds a WHERE clause for the specified property, value, filter operator, and table alias.

public DeleteEntityBuilder<TEntity> Where<TValue>(Expression<Func<TEntity, TValue>> property, TValue parameterValue, string tableAlias, FilterOperators filterOperator = FilterOperators.Equal)

Parameters

property Expression<Func<TEntity, TValue>>

An expression selecting the property to filter on.

parameterValue TValue

The value to compare the property against.

tableAlias string

The table alias to use in the query.

filterOperator FilterOperators

The filter operator to use (default is Equal).

Returns

DeleteEntityBuilder<TEntity>

The same builder instance for method chaining.

Type Parameters

TValue

The type of the value to compare.

Where<TModel, TValue>(Expression<Func<TModel, TValue>>, TValue, string, FilterOperators)

Adds a WHERE clause for the specified model property, value, filter operator, and table alias.

public DeleteEntityBuilder<TEntity> Where<TModel, TValue>(Expression<Func<TModel, TValue>> property, TValue parameterValue, string tableAlias, FilterOperators filterOperator = FilterOperators.Equal)

Parameters

property Expression<Func<TModel, TValue>>

An expression selecting the property to filter on.

parameterValue TValue

The value to compare the property against.

tableAlias string

The table alias to use in the query.

filterOperator FilterOperators

The filter operator to use (default is Equal).

Returns

DeleteEntityBuilder<TEntity>

The same builder instance for method chaining.

Type Parameters

TModel

The type of the model.

TValue

The type of the value to compare.