ConstantExpression

Overview

Represents constant values to be used in WhereExpressions.

For example, the following WHERE statement

SELECT * FROM Employees WHERE (Position = 'Sales Manager')

using ConstantExpression would look like this:

WhereExpression lResult;
lResult = new BinaryExpression(
              new FieldExpression("Position"),
              new ConstantExpression("Sales Manager", DataType.String),
              BinaryOperator.Equal),

Location

 

constructor

Default parameterless constructor.
Required properties have to assigned in addition

 

constructor

 

ConstantExpression()

 

Sub New()

constructor (String, DataType, Int32)    (declared in ParameterExpression)

Creates a new instance of the ParameterExpression class.

 

constructor(name: String; type: DataType; size: Int32)

 

ConstantExpression(String name, DataType type, Int32 size)

 

Sub New(name As String, type As DataType, size As Int32)

Parameters:

  • name: Parameter name
  • type: Parameter data type
  • size: Parameter data size

constructor (Object)

Creates a new instance of the ConstantExpression class.

 

constructor(value: Object)

 

ConstantExpression(Object value)

 

Sub New(value As Object)

Parameters:

  • value: Value of the constant

constructor (Object, DataType)

Creates a new instance of the ConstantExpression class.

 

constructor(value: Object; type: DataType)

 

ConstantExpression(Object value, DataType type)

 

Sub New(value As Object, type As DataType)

Parameters:

  • value: Value of the constant
  • type: Data type

ApplyFieldMapping    (declared in WhereExpression)

Adjusts the field names in accordance with table names of fields in the given schema column mapping.

 

method ApplyFieldMapping(columnMappings: SchemaColumnMappingCollection)

 

void ApplyFieldMapping(SchemaColumnMappingCollection columnMappings)

 

Sub ApplyFieldMapping(columnMappings As SchemaColumnMappingCollection)

Parameters:

  • columnMappings:

ApplySourceTableNumber    (declared in WhereExpression)

Adjusts the source table number

 

method ApplySourceTableNumber(number: Int32): WhereExpression

 

WhereExpression ApplySourceTableNumber(Int32 number)

 

Function ApplySourceTableNumber(number As Int32) As WhereExpression

Parameters:

  • number:

ApplyTableMapping    (declared in WhereExpression)

Adjusts the table names

 

method ApplyTableMapping(schemaTable: String; databaseTable: String)

 

void ApplyTableMapping(String schemaTable, String databaseTable)

 

Sub ApplyTableMapping(schemaTable As String, databaseTable As String)

Parameters:

  • schemaTable:
  • databaseTable:

ApplyTableNameOrAlias    (declared in WhereExpression)

Adjusts the table names

 

method ApplyTableNameOrAlias(name: String)

 

void ApplyTableNameOrAlias(String name)

 

Sub ApplyTableNameOrAlias(name As String)

Parameters:

  • name:

Creates new BinaryExpression from given left and right operands, using operator And.

 

class method Combine(left: WhereExpression; right: WhereExpression): WhereExpression

 

static WhereExpression Combine(WhereExpression left, WhereExpression right)

 

Shared Function Combine(left As WhereExpression, right As WhereExpression) As WhereExpression

Parameters:

  • left:
  • right:

Creates new BinaryExpression from given left and right operands, using operator.

 

class method Combine(left: WhereExpression; right: WhereExpression; operator: BinaryOperator): WhereExpression

 

static WhereExpression Combine(WhereExpression left, WhereExpression right, BinaryOperator operator)

 

Shared Function Combine(left As WhereExpression, right As WhereExpression, operator As BinaryOperator) As WhereExpression

Parameters:

  • left:
  • right:
  • operator:

DeserializeObject

Gets the object of the given WhereExpression from the serialized string.

 

class method DeserializeObject(source: String; dataType: DataType): Object

 

static Object DeserializeObject(String source, DataType dataType)

 

Shared Function DeserializeObject(source As String, dataType As DataType) As Object

Parameters:

  • source:
  • dataType:

DYN_WHERE_BETWEEN  protected    (declared in WhereExpression)

 

const DYN_WHERE_BETWEEN: String = 'between'

 

const String DYN_WHERE_BETWEEN = "between"

 

Const DYN_WHERE_BETWEEN As String = "between"

DYN_WHERE_BINARYOPERATION  protected    (declared in WhereExpression)

 

const DYN_WHERE_BINARYOPERATION: String = 'binaryoperation'

 

const String DYN_WHERE_BINARYOPERATION = "binaryoperation"

 

Const DYN_WHERE_BINARYOPERATION As String = "binaryoperation"

DYN_WHERE_CONSTANT  protected    (declared in WhereExpression)

 

const DYN_WHERE_CONSTANT: String = 'constant'

 

const String DYN_WHERE_CONSTANT = "constant"

 

Const DYN_WHERE_CONSTANT As String = "constant"

DYN_WHERE_DATATYPE  protected    (declared in WhereExpression)

 

const DYN_WHERE_DATATYPE: String = 'datatype'

 

const String DYN_WHERE_DATATYPE = "datatype"

 

Const DYN_WHERE_DATATYPE As String = "datatype"

DYN_WHERE_DATETIMENOW  protected    (declared in WhereExpression)

 

const DYN_WHERE_DATETIMENOW: String = 'datetimenow'

 

const String DYN_WHERE_DATETIMENOW = "datetimenow"

 

Const DYN_WHERE_DATETIMENOW As String = "datetimenow"

DYN_WHERE_DATETIMEPART  protected    (declared in WhereExpression)

 

const DYN_WHERE_DATETIMEPART: String = 'datetimepart'

 

const String DYN_WHERE_DATETIMEPART = "datetimepart"

 

Const DYN_WHERE_DATETIMEPART As String = "datetimepart"

DYN_WHERE_DATETIMETODAY  protected    (declared in WhereExpression)

 

const DYN_WHERE_DATETIMETODAY: String = 'datetimetoday'

 

const String DYN_WHERE_DATETIMETODAY = "datetimetoday"

 

Const DYN_WHERE_DATETIMETODAY As String = "datetimetoday"

DYN_WHERE_EXPRESSION  protected    (declared in WhereExpression)

 

const DYN_WHERE_EXPRESSION: String = 'expression'

 

const String DYN_WHERE_EXPRESSION = "expression"

 

Const DYN_WHERE_EXPRESSION As String = "expression"

DYN_WHERE_FIELD  protected    (declared in WhereExpression)

 

const DYN_WHERE_FIELD: String = 'field'

 

const String DYN_WHERE_FIELD = "field"

 

Const DYN_WHERE_FIELD As String = "field"

DYN_WHERE_FUNCTION  protected    (declared in WhereExpression)

 

const DYN_WHERE_FUNCTION: String = 'function'

 

const String DYN_WHERE_FUNCTION = "function"

 

Const DYN_WHERE_FUNCTION As String = "function"

DYN_WHERE_ITEMS  protected    (declared in WhereExpression)

 

const DYN_WHERE_ITEMS: String = 'items'

 

const String DYN_WHERE_ITEMS = "items"

 

Const DYN_WHERE_ITEMS As String = "items"

DYN_WHERE_KIND  protected    (declared in WhereExpression)

 

const DYN_WHERE_KIND: String = 'kind'

 

const String DYN_WHERE_KIND = "kind"

 

Const DYN_WHERE_KIND As String = "kind"

DYN_WHERE_LEFT  protected    (declared in WhereExpression)

 

const DYN_WHERE_LEFT: String = 'left'

 

const String DYN_WHERE_LEFT = "left"

 

Const DYN_WHERE_LEFT As String = "left"

DYN_WHERE_LIST  protected    (declared in WhereExpression)

 

const DYN_WHERE_LIST: String = 'list'

 

const String DYN_WHERE_LIST = "list"

 

Const DYN_WHERE_LIST As String = "list"

DYN_WHERE_LOWER  protected    (declared in WhereExpression)

 

const DYN_WHERE_LOWER: String = 'lower'

 

const String DYN_WHERE_LOWER = "lower"

 

Const DYN_WHERE_LOWER As String = "lower"

DYN_WHERE_MACRO  protected    (declared in WhereExpression)

 

const DYN_WHERE_MACRO: String = 'macro'

 

const String DYN_WHERE_MACRO = "macro"

 

Const DYN_WHERE_MACRO As String = "macro"

DYN_WHERE_NAME  protected    (declared in WhereExpression)

 

const DYN_WHERE_NAME: String = 'name'

 

const String DYN_WHERE_NAME = "name"

 

Const DYN_WHERE_NAME As String = "name"

DYN_WHERE_NULL  protected    (declared in WhereExpression)

 

const DYN_WHERE_NULL: String = 'null'

 

const String DYN_WHERE_NULL = "null"

 

Const DYN_WHERE_NULL As String = "null"

DYN_WHERE_OPERATOR  protected    (declared in WhereExpression)

 

const DYN_WHERE_OPERATOR: String = 'operator'

 

const String DYN_WHERE_OPERATOR = "operator"

 

Const DYN_WHERE_OPERATOR As String = "operator"

DYN_WHERE_PARAMETER  protected    (declared in WhereExpression)

 

const DYN_WHERE_PARAMETER: String = 'parameter'

 

const String DYN_WHERE_PARAMETER = "parameter"

 

Const DYN_WHERE_PARAMETER As String = "parameter"

DYN_WHERE_PART  protected    (declared in WhereExpression)

 

const DYN_WHERE_PART: String = 'part'

 

const String DYN_WHERE_PART = "part"

 

Const DYN_WHERE_PART As String = "part"

DYN_WHERE_RIGHT  protected    (declared in WhereExpression)

 

const DYN_WHERE_RIGHT: String = 'right'

 

const String DYN_WHERE_RIGHT = "right"

 

Const DYN_WHERE_RIGHT As String = "right"

DYN_WHERE_SIZE  protected    (declared in WhereExpression)

 

const DYN_WHERE_SIZE: String = 'size'

 

const String DYN_WHERE_SIZE = "size"

 

Const DYN_WHERE_SIZE As String = "size"

DYN_WHERE_TABLE  protected    (declared in WhereExpression)

 

const DYN_WHERE_TABLE: String = 'table'

 

const String DYN_WHERE_TABLE = "table"

 

Const DYN_WHERE_TABLE As String = "table"

DYN_WHERE_TYPE  protected    (declared in WhereExpression)

 

const DYN_WHERE_TYPE: String = 'type'

 

const String DYN_WHERE_TYPE = "type"

 

Const DYN_WHERE_TYPE As String = "type"

DYN_WHERE_TYPE_VALUE  protected    (declared in WhereExpression)

 

const DYN_WHERE_TYPE_VALUE: String = 'query.where'

 

const String DYN_WHERE_TYPE_VALUE = "query.where"

 

Const DYN_WHERE_TYPE_VALUE As String = "query.where"

DYN_WHERE_UNARYOPERATION  protected    (declared in WhereExpression)

 

const DYN_WHERE_UNARYOPERATION: String = 'unaryoperation'

 

const String DYN_WHERE_UNARYOPERATION = "unaryoperation"

 

Const DYN_WHERE_UNARYOPERATION As String = "unaryoperation"

DYN_WHERE_UPPER  protected    (declared in WhereExpression)

 

const DYN_WHERE_UPPER: String = 'upper'

 

const String DYN_WHERE_UPPER = "upper"

 

Const DYN_WHERE_UPPER As String = "upper"

DYN_WHERE_VALUE  protected    (declared in WhereExpression)

 

const DYN_WHERE_VALUE: String = 'value'

 

const String DYN_WHERE_VALUE = "value"

 

Const DYN_WHERE_VALUE As String = "value"

ExtractAllConstantExpression

Establishes a list of all ConstantExpression contained in the expression.

 

method ExtractAllConstantExpression(expressions: List<ConstantExpression>)

 

void ExtractAllConstantExpression(List<ConstantExpression> expressions)

 

Sub ExtractAllConstantExpression(expressions As List<ConstantExpression>)

Parameters:

  • expressions:

ExtractAllFieldNames    (declared in WhereExpression)

Establishes a list of field names used in the expression.

 

method ExtractAllFieldNames(fieldNames: List<String>)

 

void ExtractAllFieldNames(List<String> fieldNames)

 

Sub ExtractAllFieldNames(fieldNames As List<String>)

Parameters:

  • fieldNames:

ExtractAllParams    (declared in ParameterExpression)

Fills SchemaParameterCollection with ParameterExpressions and ConstantExpressions (as ParameterExpressions) contained in the expression.

 

method ExtractAllParams(parameters: SchemaParameterCollection)

 

void ExtractAllParams(SchemaParameterCollection parameters)

 

Sub ExtractAllParams(parameters As SchemaParameterCollection)

Parameters:

  • parameters:

FromJsonObject    (declared in WhereExpression)

Creates expression from the given Json object, that should be in the correct Dynamic Where JSON Format.

 

class method FromJsonObject(node: JsonObject): WhereExpression

 

static WhereExpression FromJsonObject(JsonObject node)

 

Shared Function FromJsonObject(node As JsonObject) As WhereExpression

Parameters:

  • node: json object

FromJsonString    (declared in WhereExpression)

Creates expression from the given string, that should be in the correct Dynamic Where JSON Format.

 

class method FromJsonString(json: String): WhereExpression

 

static WhereExpression FromJsonString(String json)

 

Shared Function FromJsonString(json As String) As WhereExpression

Parameters:

  • json: string in Json format

FromString    (declared in WhereExpression)

Creates new WhereExpression from string, which should contain where node in the correct Dynamic Where XML Format.

 

class method FromString(value: String): WhereExpression

 

static WhereExpression FromString(String value)

 

Shared Function FromString(value As String) As WhereExpression

Parameters:

  • value: string in XML or Json format

FromStringToSql    (declared in WhereExpression)

 

class method FromStringToSql(xml: String): String

 

static String FromStringToSql(String xml)

 

Shared Function FromStringToSql(xml As String) As String

Parameters:

  • xml:

FromXmlNode    (declared in WhereExpression)

Creates new WhereExpression from xml node, which should be in the correct Dynamic Where XML Format.

 

class method FromXmlNode(node: XmlNode): WhereExpression

 

static WhereExpression FromXmlNode(XmlNode node)

 

Shared Function FromXmlNode(node As XmlNode) As WhereExpression

Parameters:

  • node: XML node

FromXmlString    (declared in WhereExpression)

Creates new WhereExpression from xml string which should be in the correct Dynamic Where XML Format.

 

class method FromXmlString(xml: String): WhereExpression

 

static WhereExpression FromXmlString(String xml)

 

Shared Function FromXmlString(xml As String) As WhereExpression

Parameters:

  • xml: XML string

Kind

Represents the type of WHERE expression.

 

property Kind: WhereKind read;

 

WhereKind Kind { get; }

 

ReadOnly Property Kind() As WhereKind

ParameterName    (declared in ParameterExpression)

Name of the parameter represented by this instance.

 

property ParameterName: String read write;

 

String ParameterName { get; set; }

 

Property ParameterName() As String

ParseExpression (JsonBaseObject): WhereExpression    (declared in WhereExpression)

Creates new Where expression from Json object.

 

class method ParseExpression(node: JsonBaseObject): WhereExpression

 

static WhereExpression ParseExpression(JsonBaseObject node)

 

Shared Function ParseExpression(node As JsonBaseObject) As WhereExpression

Parameters:

  • node: Json object

ParseExpression (XmlNode): WhereExpression    (declared in WhereExpression)

Creates new Where expression from XML node.

 

class method ParseExpression(node: XmlNode): WhereExpression

 

static WhereExpression ParseExpression(XmlNode node)

 

Shared Function ParseExpression(node As XmlNode) As WhereExpression

Parameters:

  • node: XML node

ReadFromJson

Creates expression from the given Json object, that should be in the correct Dynamic Where JSON Format.

 

method ReadFromJson(node: JsonObject)

 

void ReadFromJson(JsonObject node)

 

Sub ReadFromJson(node As JsonObject)

Parameters:

  • node: Json object

ReadFromXml

Creates expression from the given xml node, that should be in the correct Dynamic Where XML Format.

 

method ReadFromXml(node: XmlNode)

 

void ReadFromXml(XmlNode node)

 

Sub ReadFromXml(node As XmlNode)

Parameters:

  • node: XML node

SerializeObject

Writes the object of the given type to the string.

 

class method SerializeObject(value: Object; dataType: DataType): String

 

static String SerializeObject(Object value, DataType dataType)

 

Shared Function SerializeObject(value As Object, dataType As DataType) As String

Parameters:

  • value:
  • dataType:

Size    (declared in ParameterExpression)

The size of the parameter. This property is usually used with String, WideString, Memo, WideMemo, Blob types.

0 is the default value.

 

property Size: Int32 read write;

 

Int32 Size { get; set; }

 

Property Size() As Int32

ToJsonString    (declared in WhereExpression)

Creates query node (in the Dynamic Where Json Format) from WhereExpression and returns it in the string format.

 

method ToJsonString: String

 

String ToJsonString()

 

Function ToJsonString() As String

ToSQLString    (declared in WhereExpression)

Creates an SQL representation of the current where expression instance

 

method ToSQLString: String

 

String ToSQLString()

 

Function ToSQLString() As String

ToSQLString (StringBuilder)

Creates an SQL representation of the current where expression instance and appends it to the provided StringBuilder.

 

method ToSQLString(destination: StringBuilder)

 

void ToSQLString(StringBuilder destination)

 

Sub ToSQLString(destination As StringBuilder)

Parameters:

  • destination: The destination string builder to be appended.

ToString    (declared in WhereExpression)

Returns a SQL string representation of the current expression.

 

method ToString: String

 

String ToString()

 

Function ToString() As String

ToXmlNode    (declared in WhereExpression)

Creates query node (in the Dynamic Where XML Format) from WhereExpression.

 

method ToXmlNode: XmlNode

 

XmlNode ToXmlNode()

 

Function ToXmlNode() As XmlNode

ToXmlString    (declared in WhereExpression)

Creates query node (in the Dynamic Where XML Format) from WhereExpression and returns it in the string format.

 

method ToXmlString: String

 

String ToXmlString()

 

Function ToXmlString() As String

Type    (declared in ParameterExpression)

Specifies the type of the parameter. Type can be any from the DataType enum.

 

property Type: DataType read write;

 

DataType Type { get; set; }

 

Property Type() As DataType

Validate    (declared in WhereExpression)

Validates that expression doesn't contain any errors, using WhereValidator. The main purpose of this validation - to scan all objects of expession tree and make sure that it contains correct field names.

 

method Validate: Boolean

 

Boolean Validate()

 

Function Validate() As Boolean

Validate (WhereExpression): Boolean    (declared in WhereExpression)

Validates that expression doesn't contain any errors, using WhereValidator. The main purpose of this validation - to scan all objects of expession tree and make sure that it contains correct field names.

 

class method Validate(expression: WhereExpression): Boolean

 

static Boolean Validate(WhereExpression expression)

 

Shared Function Validate(expression As WhereExpression) As Boolean

Parameters:

  • expression: Expression

Value

Value of the constant

 

property Value: Object read write;

 

Object Value { get; set; }

 

Property Value() As Object

WriteExpression    (declared in WhereExpression)

Writes expression to Json object

 

class method WriteExpression(node: JsonBaseObject; tag: String; value: WhereExpression)

 

static void WriteExpression(JsonBaseObject node, String tag, WhereExpression value)

 

Shared Sub WriteExpression(node As JsonBaseObject, tag As String, value As WhereExpression)

Parameters:

  • node:
  • tag:
  • value:

WriteToJson

Writes Json object from expression.

 

method WriteToJson(node: JsonObject)

 

void WriteToJson(JsonObject node)

 

Sub WriteToJson(node As JsonObject)

Parameters:

  • node: Json object

WriteToXml

Writes xml node from expression.

 

method WriteToXml(node: XmlNode)

 

void WriteToXml(XmlNode node)

 

Sub WriteToXml(node As XmlNode)

Parameters:

  • node: XML node

 

DYN_WHERE_BETWEEN  protected    (declared in WhereExpression)

 

const DYN_WHERE_BETWEEN: String = 'between'

 

const String DYN_WHERE_BETWEEN = "between"

 

Const DYN_WHERE_BETWEEN As String = "between"

DYN_WHERE_BINARYOPERATION  protected    (declared in WhereExpression)

 

const DYN_WHERE_BINARYOPERATION: String = 'binaryoperation'

 

const String DYN_WHERE_BINARYOPERATION = "binaryoperation"

 

Const DYN_WHERE_BINARYOPERATION As String = "binaryoperation"

DYN_WHERE_CONSTANT  protected    (declared in WhereExpression)

 

const DYN_WHERE_CONSTANT: String = 'constant'

 

const String DYN_WHERE_CONSTANT = "constant"

 

Const DYN_WHERE_CONSTANT As String = "constant"

DYN_WHERE_DATATYPE  protected    (declared in WhereExpression)

 

const DYN_WHERE_DATATYPE: String = 'datatype'

 

const String DYN_WHERE_DATATYPE = "datatype"

 

Const DYN_WHERE_DATATYPE As String = "datatype"

DYN_WHERE_DATETIMENOW  protected    (declared in WhereExpression)

 

const DYN_WHERE_DATETIMENOW: String = 'datetimenow'

 

const String DYN_WHERE_DATETIMENOW = "datetimenow"

 

Const DYN_WHERE_DATETIMENOW As String = "datetimenow"

DYN_WHERE_DATETIMEPART  protected    (declared in WhereExpression)

 

const DYN_WHERE_DATETIMEPART: String = 'datetimepart'

 

const String DYN_WHERE_DATETIMEPART = "datetimepart"

 

Const DYN_WHERE_DATETIMEPART As String = "datetimepart"

DYN_WHERE_DATETIMETODAY  protected    (declared in WhereExpression)

 

const DYN_WHERE_DATETIMETODAY: String = 'datetimetoday'

 

const String DYN_WHERE_DATETIMETODAY = "datetimetoday"

 

Const DYN_WHERE_DATETIMETODAY As String = "datetimetoday"

DYN_WHERE_EXPRESSION  protected    (declared in WhereExpression)

 

const DYN_WHERE_EXPRESSION: String = 'expression'

 

const String DYN_WHERE_EXPRESSION = "expression"

 

Const DYN_WHERE_EXPRESSION As String = "expression"

DYN_WHERE_FIELD  protected    (declared in WhereExpression)

 

const DYN_WHERE_FIELD: String = 'field'

 

const String DYN_WHERE_FIELD = "field"

 

Const DYN_WHERE_FIELD As String = "field"

DYN_WHERE_FUNCTION  protected    (declared in WhereExpression)

 

const DYN_WHERE_FUNCTION: String = 'function'

 

const String DYN_WHERE_FUNCTION = "function"

 

Const DYN_WHERE_FUNCTION As String = "function"

DYN_WHERE_ITEMS  protected    (declared in WhereExpression)

 

const DYN_WHERE_ITEMS: String = 'items'

 

const String DYN_WHERE_ITEMS = "items"

 

Const DYN_WHERE_ITEMS As String = "items"

DYN_WHERE_KIND  protected    (declared in WhereExpression)

 

const DYN_WHERE_KIND: String = 'kind'

 

const String DYN_WHERE_KIND = "kind"

 

Const DYN_WHERE_KIND As String = "kind"

DYN_WHERE_LEFT  protected    (declared in WhereExpression)

 

const DYN_WHERE_LEFT: String = 'left'

 

const String DYN_WHERE_LEFT = "left"

 

Const DYN_WHERE_LEFT As String = "left"

DYN_WHERE_LIST  protected    (declared in WhereExpression)

 

const DYN_WHERE_LIST: String = 'list'

 

const String DYN_WHERE_LIST = "list"

 

Const DYN_WHERE_LIST As String = "list"

DYN_WHERE_LOWER  protected    (declared in WhereExpression)

 

const DYN_WHERE_LOWER: String = 'lower'

 

const String DYN_WHERE_LOWER = "lower"

 

Const DYN_WHERE_LOWER As String = "lower"

DYN_WHERE_MACRO  protected    (declared in WhereExpression)

 

const DYN_WHERE_MACRO: String = 'macro'

 

const String DYN_WHERE_MACRO = "macro"

 

Const DYN_WHERE_MACRO As String = "macro"

DYN_WHERE_NAME  protected    (declared in WhereExpression)

 

const DYN_WHERE_NAME: String = 'name'

 

const String DYN_WHERE_NAME = "name"

 

Const DYN_WHERE_NAME As String = "name"

DYN_WHERE_NULL  protected    (declared in WhereExpression)

 

const DYN_WHERE_NULL: String = 'null'

 

const String DYN_WHERE_NULL = "null"

 

Const DYN_WHERE_NULL As String = "null"

DYN_WHERE_OPERATOR  protected    (declared in WhereExpression)

 

const DYN_WHERE_OPERATOR: String = 'operator'

 

const String DYN_WHERE_OPERATOR = "operator"

 

Const DYN_WHERE_OPERATOR As String = "operator"

DYN_WHERE_PARAMETER  protected    (declared in WhereExpression)

 

const DYN_WHERE_PARAMETER: String = 'parameter'

 

const String DYN_WHERE_PARAMETER = "parameter"

 

Const DYN_WHERE_PARAMETER As String = "parameter"

DYN_WHERE_PART  protected    (declared in WhereExpression)

 

const DYN_WHERE_PART: String = 'part'

 

const String DYN_WHERE_PART = "part"

 

Const DYN_WHERE_PART As String = "part"

DYN_WHERE_RIGHT  protected    (declared in WhereExpression)

 

const DYN_WHERE_RIGHT: String = 'right'

 

const String DYN_WHERE_RIGHT = "right"

 

Const DYN_WHERE_RIGHT As String = "right"

DYN_WHERE_SIZE  protected    (declared in WhereExpression)

 

const DYN_WHERE_SIZE: String = 'size'

 

const String DYN_WHERE_SIZE = "size"

 

Const DYN_WHERE_SIZE As String = "size"

DYN_WHERE_TABLE  protected    (declared in WhereExpression)

 

const DYN_WHERE_TABLE: String = 'table'

 

const String DYN_WHERE_TABLE = "table"

 

Const DYN_WHERE_TABLE As String = "table"

DYN_WHERE_TYPE  protected    (declared in WhereExpression)

 

const DYN_WHERE_TYPE: String = 'type'

 

const String DYN_WHERE_TYPE = "type"

 

Const DYN_WHERE_TYPE As String = "type"

DYN_WHERE_TYPE_VALUE  protected    (declared in WhereExpression)

 

const DYN_WHERE_TYPE_VALUE: String = 'query.where'

 

const String DYN_WHERE_TYPE_VALUE = "query.where"

 

Const DYN_WHERE_TYPE_VALUE As String = "query.where"

DYN_WHERE_UNARYOPERATION  protected    (declared in WhereExpression)

 

const DYN_WHERE_UNARYOPERATION: String = 'unaryoperation'

 

const String DYN_WHERE_UNARYOPERATION = "unaryoperation"

 

Const DYN_WHERE_UNARYOPERATION As String = "unaryoperation"

DYN_WHERE_UPPER  protected    (declared in WhereExpression)

 

const DYN_WHERE_UPPER: String = 'upper'

 

const String DYN_WHERE_UPPER = "upper"

 

Const DYN_WHERE_UPPER As String = "upper"

DYN_WHERE_VALUE  protected    (declared in WhereExpression)

 

const DYN_WHERE_VALUE: String = 'value'

 

const String DYN_WHERE_VALUE = "value"

 

Const DYN_WHERE_VALUE As String = "value"

 

Kind

Represents the type of WHERE expression.

 

property Kind: WhereKind read;

 

WhereKind Kind { get; }

 

ReadOnly Property Kind() As WhereKind

ParameterName    (declared in ParameterExpression)

Name of the parameter represented by this instance.

 

property ParameterName: String read write;

 

String ParameterName { get; set; }

 

Property ParameterName() As String

Size    (declared in ParameterExpression)

The size of the parameter. This property is usually used with String, WideString, Memo, WideMemo, Blob types.

0 is the default value.

 

property Size: Int32 read write;

 

Int32 Size { get; set; }

 

Property Size() As Int32

Type    (declared in ParameterExpression)

Specifies the type of the parameter. Type can be any from the DataType enum.

 

property Type: DataType read write;

 

DataType Type { get; set; }

 

Property Type() As DataType

Value

Value of the constant

 

property Value: Object read write;

 

Object Value { get; set; }

 

Property Value() As Object

 

Creates new BinaryExpression from given left and right operands, using operator And.

 

class method Combine(left: WhereExpression; right: WhereExpression): WhereExpression

 

static WhereExpression Combine(WhereExpression left, WhereExpression right)

 

Shared Function Combine(left As WhereExpression, right As WhereExpression) As WhereExpression

Parameters:

  • left:
  • right:

Creates new BinaryExpression from given left and right operands, using operator.

 

class method Combine(left: WhereExpression; right: WhereExpression; operator: BinaryOperator): WhereExpression

 

static WhereExpression Combine(WhereExpression left, WhereExpression right, BinaryOperator operator)

 

Shared Function Combine(left As WhereExpression, right As WhereExpression, operator As BinaryOperator) As WhereExpression

Parameters:

  • left:
  • right:
  • operator:

DeserializeObject

Gets the object of the given WhereExpression from the serialized string.

 

class method DeserializeObject(source: String; dataType: DataType): Object

 

static Object DeserializeObject(String source, DataType dataType)

 

Shared Function DeserializeObject(source As String, dataType As DataType) As Object

Parameters:

  • source:
  • dataType:

FromJsonObject    (declared in WhereExpression)

Creates expression from the given Json object, that should be in the correct Dynamic Where JSON Format.

 

class method FromJsonObject(node: JsonObject): WhereExpression

 

static WhereExpression FromJsonObject(JsonObject node)

 

Shared Function FromJsonObject(node As JsonObject) As WhereExpression

Parameters:

  • node: json object

FromJsonString    (declared in WhereExpression)

Creates expression from the given string, that should be in the correct Dynamic Where JSON Format.

 

class method FromJsonString(json: String): WhereExpression

 

static WhereExpression FromJsonString(String json)

 

Shared Function FromJsonString(json As String) As WhereExpression

Parameters:

  • json: string in Json format

FromString    (declared in WhereExpression)

Creates new WhereExpression from string, which should contain where node in the correct Dynamic Where XML Format.

 

class method FromString(value: String): WhereExpression

 

static WhereExpression FromString(String value)

 

Shared Function FromString(value As String) As WhereExpression

Parameters:

  • value: string in XML or Json format

FromStringToSql    (declared in WhereExpression)

 

class method FromStringToSql(xml: String): String

 

static String FromStringToSql(String xml)

 

Shared Function FromStringToSql(xml As String) As String

Parameters:

  • xml:

FromXmlNode    (declared in WhereExpression)

Creates new WhereExpression from xml node, which should be in the correct Dynamic Where XML Format.

 

class method FromXmlNode(node: XmlNode): WhereExpression

 

static WhereExpression FromXmlNode(XmlNode node)

 

Shared Function FromXmlNode(node As XmlNode) As WhereExpression

Parameters:

  • node: XML node

FromXmlString    (declared in WhereExpression)

Creates new WhereExpression from xml string which should be in the correct Dynamic Where XML Format.

 

class method FromXmlString(xml: String): WhereExpression

 

static WhereExpression FromXmlString(String xml)

 

Shared Function FromXmlString(xml As String) As WhereExpression

Parameters:

  • xml: XML string

ParseExpression (JsonBaseObject): WhereExpression    (declared in WhereExpression)

Creates new Where expression from Json object.

 

class method ParseExpression(node: JsonBaseObject): WhereExpression

 

static WhereExpression ParseExpression(JsonBaseObject node)

 

Shared Function ParseExpression(node As JsonBaseObject) As WhereExpression

Parameters:

  • node: Json object

ParseExpression (XmlNode): WhereExpression    (declared in WhereExpression)

Creates new Where expression from XML node.

 

class method ParseExpression(node: XmlNode): WhereExpression

 

static WhereExpression ParseExpression(XmlNode node)

 

Shared Function ParseExpression(node As XmlNode) As WhereExpression

Parameters:

  • node: XML node

SerializeObject

Writes the object of the given type to the string.

 

class method SerializeObject(value: Object; dataType: DataType): String

 

static String SerializeObject(Object value, DataType dataType)

 

Shared Function SerializeObject(value As Object, dataType As DataType) As String

Parameters:

  • value:
  • dataType:

Validate (WhereExpression): Boolean    (declared in WhereExpression)

Validates that expression doesn't contain any errors, using WhereValidator. The main purpose of this validation - to scan all objects of expession tree and make sure that it contains correct field names.

 

class method Validate(expression: WhereExpression): Boolean

 

static Boolean Validate(WhereExpression expression)

 

Shared Function Validate(expression As WhereExpression) As Boolean

Parameters:

  • expression: Expression

WriteExpression    (declared in WhereExpression)

Writes expression to Json object

 

class method WriteExpression(node: JsonBaseObject; tag: String; value: WhereExpression)

 

static void WriteExpression(JsonBaseObject node, String tag, WhereExpression value)

 

Shared Sub WriteExpression(node As JsonBaseObject, tag As String, value As WhereExpression)

Parameters:

  • node:
  • tag:
  • value:

 

constructor

Default parameterless constructor.
Required properties have to assigned in addition

 

constructor

 

ConstantExpression()

 

Sub New()

constructor (String, DataType, Int32)    (declared in ParameterExpression)

Creates a new instance of the ParameterExpression class.

 

constructor(name: String; type: DataType; size: Int32)

 

ConstantExpression(String name, DataType type, Int32 size)

 

Sub New(name As String, type As DataType, size As Int32)

Parameters:

  • name: Parameter name
  • type: Parameter data type
  • size: Parameter data size

constructor (Object)

Creates a new instance of the ConstantExpression class.

 

constructor(value: Object)

 

ConstantExpression(Object value)

 

Sub New(value As Object)

Parameters:

  • value: Value of the constant

constructor (Object, DataType)

Creates a new instance of the ConstantExpression class.

 

constructor(value: Object; type: DataType)

 

ConstantExpression(Object value, DataType type)

 

Sub New(value As Object, type As DataType)

Parameters:

  • value: Value of the constant
  • type: Data type

ApplyFieldMapping    (declared in WhereExpression)

Adjusts the field names in accordance with table names of fields in the given schema column mapping.

 

method ApplyFieldMapping(columnMappings: SchemaColumnMappingCollection)

 

void ApplyFieldMapping(SchemaColumnMappingCollection columnMappings)

 

Sub ApplyFieldMapping(columnMappings As SchemaColumnMappingCollection)

Parameters:

  • columnMappings:

ApplySourceTableNumber    (declared in WhereExpression)

Adjusts the source table number

 

method ApplySourceTableNumber(number: Int32): WhereExpression

 

WhereExpression ApplySourceTableNumber(Int32 number)

 

Function ApplySourceTableNumber(number As Int32) As WhereExpression

Parameters:

  • number:

ApplyTableMapping    (declared in WhereExpression)

Adjusts the table names

 

method ApplyTableMapping(schemaTable: String; databaseTable: String)

 

void ApplyTableMapping(String schemaTable, String databaseTable)

 

Sub ApplyTableMapping(schemaTable As String, databaseTable As String)

Parameters:

  • schemaTable:
  • databaseTable:

ApplyTableNameOrAlias    (declared in WhereExpression)

Adjusts the table names

 

method ApplyTableNameOrAlias(name: String)

 

void ApplyTableNameOrAlias(String name)

 

Sub ApplyTableNameOrAlias(name As String)

Parameters:

  • name:

ExtractAllConstantExpression

Establishes a list of all ConstantExpression contained in the expression.

 

method ExtractAllConstantExpression(expressions: List<ConstantExpression>)

 

void ExtractAllConstantExpression(List<ConstantExpression> expressions)

 

Sub ExtractAllConstantExpression(expressions As List<ConstantExpression>)

Parameters:

  • expressions:

ExtractAllFieldNames    (declared in WhereExpression)

Establishes a list of field names used in the expression.

 

method ExtractAllFieldNames(fieldNames: List<String>)

 

void ExtractAllFieldNames(List<String> fieldNames)

 

Sub ExtractAllFieldNames(fieldNames As List<String>)

Parameters:

  • fieldNames:

ExtractAllParams    (declared in ParameterExpression)

Fills SchemaParameterCollection with ParameterExpressions and ConstantExpressions (as ParameterExpressions) contained in the expression.

 

method ExtractAllParams(parameters: SchemaParameterCollection)

 

void ExtractAllParams(SchemaParameterCollection parameters)

 

Sub ExtractAllParams(parameters As SchemaParameterCollection)

Parameters:

  • parameters:

ReadFromJson

Creates expression from the given Json object, that should be in the correct Dynamic Where JSON Format.

 

method ReadFromJson(node: JsonObject)

 

void ReadFromJson(JsonObject node)

 

Sub ReadFromJson(node As JsonObject)

Parameters:

  • node: Json object

ReadFromXml

Creates expression from the given xml node, that should be in the correct Dynamic Where XML Format.

 

method ReadFromXml(node: XmlNode)

 

void ReadFromXml(XmlNode node)

 

Sub ReadFromXml(node As XmlNode)

Parameters:

  • node: XML node

ToJsonString    (declared in WhereExpression)

Creates query node (in the Dynamic Where Json Format) from WhereExpression and returns it in the string format.

 

method ToJsonString: String

 

String ToJsonString()

 

Function ToJsonString() As String

ToSQLString    (declared in WhereExpression)

Creates an SQL representation of the current where expression instance

 

method ToSQLString: String

 

String ToSQLString()

 

Function ToSQLString() As String

ToSQLString (StringBuilder)

Creates an SQL representation of the current where expression instance and appends it to the provided StringBuilder.

 

method ToSQLString(destination: StringBuilder)

 

void ToSQLString(StringBuilder destination)

 

Sub ToSQLString(destination As StringBuilder)

Parameters:

  • destination: The destination string builder to be appended.

ToString    (declared in WhereExpression)

Returns a SQL string representation of the current expression.

 

method ToString: String

 

String ToString()

 

Function ToString() As String

ToXmlNode    (declared in WhereExpression)

Creates query node (in the Dynamic Where XML Format) from WhereExpression.

 

method ToXmlNode: XmlNode

 

XmlNode ToXmlNode()

 

Function ToXmlNode() As XmlNode

ToXmlString    (declared in WhereExpression)

Creates query node (in the Dynamic Where XML Format) from WhereExpression and returns it in the string format.

 

method ToXmlString: String

 

String ToXmlString()

 

Function ToXmlString() As String

Validate    (declared in WhereExpression)

Validates that expression doesn't contain any errors, using WhereValidator. The main purpose of this validation - to scan all objects of expession tree and make sure that it contains correct field names.

 

method Validate: Boolean

 

Boolean Validate()

 

Function Validate() As Boolean

WriteToJson

Writes Json object from expression.

 

method WriteToJson(node: JsonObject)

 

void WriteToJson(JsonObject node)

 

Sub WriteToJson(node As JsonObject)

Parameters:

  • node: Json object

WriteToXml

Writes xml node from expression.

 

method WriteToXml(node: XmlNode)

 

void WriteToXml(XmlNode node)

 

Sub WriteToXml(node As XmlNode)

Parameters:

  • node: XML node