Table of Contents

Class LogicalEntityBuilder<TEntity>

Namespace
FluentCommand.Query
Assembly
FluentCommand.dll

Provides a builder for constructing logical SQL query expressions (such as grouped AND/OR conditions) for a specific entity type with fluent, chainable methods.

public class LogicalEntityBuilder<TEntity> : LogicalBuilder<LogicalEntityBuilder<TEntity>>, IStatementBuilder, IQueryBuilder, IWhereEntityBuilder<TEntity, LogicalEntityBuilder<TEntity>> where TEntity : class

Type Parameters

TEntity

The type of the entity.

Inheritance
LogicalEntityBuilder<TEntity>
Implements
Inherited Members

Constructors

LogicalEntityBuilder(IQueryGenerator, List<QueryParameter>, LogicalOperators)

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

public LogicalEntityBuilder(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

WhereAnd(Action<LogicalEntityBuilder<TEntity>>)

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

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

Parameters

builder Action<LogicalEntityBuilder<TEntity>>

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

Returns

LogicalEntityBuilder<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 LogicalEntityBuilder<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

LogicalEntityBuilder<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 LogicalEntityBuilder<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

LogicalEntityBuilder<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 LogicalEntityBuilder<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

LogicalEntityBuilder<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 LogicalEntityBuilder<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

LogicalEntityBuilder<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 LogicalEntityBuilder<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

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

Parameters

builder Action<LogicalEntityBuilder<TEntity>>

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

Returns

LogicalEntityBuilder<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 LogicalEntityBuilder<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

LogicalEntityBuilder<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 LogicalEntityBuilder<TEntity> Where<TValue>(Expression<Func<TEntity, TValue>> property, TValue parameterValue, string tableAlias, FilterOperators whereOperator = 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.

whereOperator FilterOperators

The filter operator to use (default is Equal).

Returns

LogicalEntityBuilder<TEntity>

The same builder instance for method chaining.

Type Parameters

TValue

The type of the value to compare.