Class QueryFunction

Base class of the expression function.

Inheritance

System.Object

QueryFunction

AggregationQueryFunction

CastQueryFunction

CoalesceQueryFunction

ConcatQueryFunction

CreateGuidQueryFunction

CurrentDateTimeQueryFunction

CustomQueryFunction

DataLengthQueryFunction

DateAddQueryFunction

DateDiffQueryFunction

DatePartQueryFunction

IsNullQueryFunction

LengthQueryFunction

RowNumberQueryFunction

SubstringQueryFunction

TrimQueryFunction

UpperQueryFunction

WindowQueryFunction

Implements

IQueryColumnExpressionConvertible

IQueryColumnExpressionsCollector

System.ICloneable

Inherited Members

System.Object.ToString()

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

Namespace: Terrasoft.Core.DB

Assembly: Terrasoft.Core.dll

Syntax

public abstract class QueryFunction : IQueryColumnExpressionConvertible, IQueryColumnExpressionsCollector, ICloneable

Constructors

QueryFunction()

Declaration

protected QueryFunction()

Methods

Add(QueryFunction, QueryFunction)

Gets the arithmetic addition expression of the passed-in expression functions.

Declaration

public static QueryColumnExpression Add(QueryFunction leftOperand, QueryFunction rightOperand)

Parameters

Type	Name	Description
QueryFunction	leftOperand	The expression function – left operand in the addition operation.
QueryFunction	rightOperand	The expression function – right operand in the addition operation.

Returns

Type	Description
QueryColumnExpression	The QueryColumnExpression instance that represents the sum of the leftOperand and rightOperand operands.

AddQueryColumnExpressions(QueryColumnExpressionCollection)

Declaration

protected abstract void AddQueryColumnExpressions(QueryColumnExpressionCollection collection)

Parameters

Type	Name	Description
QueryColumnExpressionCollection	collection

AddUsingParameters(QueryParameterCollection)

Adds the passed-in collection of parameters in the function arguments.

Declaration

public virtual void AddUsingParameters(QueryParameterCollection resultParameters)

Parameters

Type	Name	Description
QueryParameterCollection	resultParameters	Collection of query parameters that are added in the function arguments.

BuildSqlText(StringBuilder, DBEngine)

Generates the query text, using the passed-in System.Text.StringBuilder instance and the DBEngine query builder.

Declaration

public abstract void BuildSqlText(StringBuilder sb, DBEngine dbEngine)

Parameters

Type	Name	Description
System.Text.StringBuilder	sb	The System.Text.StringBuilder instance used to create query text.
DBEngine	dbEngine	The instance of the builder of the database queries.

Clone()

Creates a copy of the current QueryFunction instance.

Declaration

public abstract object Clone()

Returns

Type	Description
System.Object	A new QueryFunction instance that represents the copy of the current instance.

Divide(QueryFunction, QueryFunction)

Gets the expression of dividing the passed-in left expression function by the passed-in right expression function.

Declaration

public static QueryColumnExpression Divide(QueryFunction leftOperand, QueryFunction rightOperand)

Parameters

Type	Name	Description
QueryFunction	leftOperand	The expression function – left operand in the division operation.
QueryFunction	rightOperand	The expression function – right operand in the division operation.

Returns

Type	Description
QueryColumnExpression	The QueryColumnExpression instance that represents the quotient of the leftOperand operand divided by the rightOperand operand.

GetQueryColumnExpression()

Gets the query column expression for the current query function.

Declaration

public QueryColumnExpression GetQueryColumnExpression()

Returns

Type	Description
QueryColumnExpression	The QueryColumnExpression instance for the current query function.

GetQueryColumnExpressions()

Gets the collection of the query column expression for the current query function.

Declaration

public QueryColumnExpressionCollection GetQueryColumnExpressions()

Returns

Type	Description
QueryColumnExpressionCollection	The QueryColumnExpression collection for the current query function.

Multiply(QueryFunction, QueryFunction)

Gets the expression of multiplying the passed-in expression functions.

Declaration

public static QueryColumnExpression Multiply(QueryFunction leftOperand, QueryFunction rightOperand)

Parameters

Type	Name	Description
QueryFunction	leftOperand	The expression function – left operand in the multiplication operation.
QueryFunction	rightOperand	The expression function – right operand in the multiplication operation.

Returns

Type	Description
QueryColumnExpression	The QueryColumnExpression instance that is the product of the leftOperand and rightOperand operands.

Negate(QueryFunction)

Gets the expression that negates the value of the passed-in function.

Declaration

public static QueryColumnExpression Negate(QueryFunction operand)

Parameters

Type	Name	Description
QueryFunction	operand	The expression function.

Returns

Type	Description
QueryColumnExpression	The column expression that represents the negation of the operand expression function.

Subtract(QueryFunction, QueryFunction)

Gets the expression of subtraction of the passed-in right expression function from the passed-in left expression function.

Declaration

public static QueryColumnExpression Subtract(QueryFunction leftOperand, QueryFunction rightOperand)

Parameters

Type	Name	Description
QueryFunction	leftOperand	The expression function – left operand in the subtraction operation.
QueryFunction	rightOperand	The expression function – right operand in the subtraction operation.

Returns

Type	Description
QueryColumnExpression	The QueryColumnExpression instance that represents the difference of the leftOperand and rightOperand operands.

Operators

Addition(QueryFunction, QueryFunction)

Overloads the operator of adding two expression functions.

Declaration

public static QueryColumnExpression operator +(QueryFunction leftOperand, QueryFunction rightOperand)

Parameters

Type	Name	Description
QueryFunction	leftOperand	The expression function – left operand in the addition operation.
QueryFunction	rightOperand	The expression function – right operand in the addition operation.

Returns

Type	Description
QueryColumnExpression	The QueryColumnExpression instance that represents the sum of the leftOperand and rightOperand operands.

Division(QueryFunction, QueryFunction)

Overloads the operator of dividing two expression functions.

Declaration

public static QueryColumnExpression operator /(QueryFunction leftOperand, QueryFunction rightOperand)

Parameters

Type	Name	Description
QueryFunction	leftOperand	The expression function – left operand in the division operation.
QueryFunction	rightOperand	The expression function – right operand in the division operation.

Returns

Type	Description
QueryColumnExpression	The QueryColumnExpression instance that represents the quotient of the leftOperand operand divided by the rightOperand operand.

Multiply(QueryFunction, QueryFunction)

Overloads the operator of multiplying two expression functions.

Declaration

public static QueryColumnExpression operator *(QueryFunction leftOperand, QueryFunction rightOperand)

Parameters

Type	Name	Description
QueryFunction	leftOperand	The query function – left operand in the multiplication operation.
QueryFunction	rightOperand	The query function – right operand in the multiplication operation.

Returns

Type	Description
QueryColumnExpression	The QueryColumnExpression instance that represents the product of the leftOperand and rightOperand operands.

Subtraction(QueryFunction, QueryFunction)

Overloads the operator of subtracting the right expression function from the left expression function.

Declaration

public static QueryColumnExpression operator -(QueryFunction leftOperand, QueryFunction rightOperand)

Parameters

Type	Name	Description
QueryFunction	leftOperand	The expression function – left operand in the subtraction operation.
QueryFunction	rightOperand	The expression function – right operand in the subtraction operation.

Returns

Type	Description
QueryColumnExpression	The QueryColumnExpression instance that represents the difference of the operands leftOperand and rightOperand

UnaryNegation(QueryFunction)

Overloads the operator of negating the passed-in expression function.

Declaration

public static QueryColumnExpression operator -(QueryFunction operand)

Parameters

Type	Name	Description
QueryFunction	operand	The expression function.

Returns

Type	Description
QueryColumnExpression	Negates the value of the operand expression function.

Implements

IQueryColumnExpressionConvertible

IQueryColumnExpressionsCollector

System.ICloneable

Extension Methods

ReflectionUtilities.GetPropertyValue(Object, String)

ReflectionUtilities.GetPropertyDefValue(Object, String, Object)

ReflectionUtilities.TryGetPropertyValue(Object, String, out Object)

ReflectionUtilities.HasProperty(Object, String)

ReflectionUtilities.GetPropertyValue(Object, String, BindingFlags)

ReflectionUtilities.GetPropertyValueByPath(Object, String)

ReflectionUtilities.SetPropertyValue(Object, String, Object)

ReflectionUtilities.TrySetPropertyValue(Object, String, Object)

ValidateUtilities.CheckArgumentNull(Object, String)

ValidateUtilities.CheckDependencyNull(Object, String)

ValidateUtilities.EnsureDependencyNotNull<T>(T, String)

MetaDataTestUtils.MetaPropertiesShouldNotHaveDefValue<TInstance>(TInstance)

MetaDataTestUtils.MetaPropertiesShouldNotHaveDefValue<TInstance>(TInstance, Boolean)

NSubstituteExtension.Protected(Object, String, Object[])

NSubstituteExtension.Protected(Object, String, Boolean, Object[])

NSubstituteExtension.ProtectedGeneric<T>(Object, String, Object[])

NSubstituteExtension.ProtectedGeneric<T>(Object, String, Boolean, Object[])

NSubstituteExtension.ProtectedProperty(Object, String)

NSubstituteExtension.MatchInstance<T>(T)

SubstituteUtilities.GetIsSubstituteObject(Object)

SubstituteUtilities.Instead<TInstance, TValue>(TInstance, Func<TInstance, TValue>)