BinaryExpression
Overview
The BinaryExpression class is derived from the WhereExpression class and represents logical operations like And, Or, Greater Than etc.
Like other classes derived from WhereExpression, this one is used to represent conditions in Data Abstract data requests.
For example, the WHERE clause in this query:
SELECT * FROM Employees WHERE (ID=42)
can be transformed to:
WhereExpression where = new BinaryExpression(
new FieldExpression("ID"),
new ConstantExpression(42),
BinaryOperator.Equal);
Location
- Reference: RemObjects.DataAbstract.dll
- Namespace: RemObjects.DataAbstract.Expressions
- Ancestry: WhereExpression | BinaryExpression
constructor
Default parameterless constructor.
Required properties have to assigned in addition
constructor
BinaryExpression()
Sub New()
constructor (array of BinaryExpression, BinaryOperator)
Creates a new instance of the BinaryExpression class.
constructor(expressions: array of BinaryExpression; operator: BinaryOperator)
BinaryExpression(BinaryExpression[] expressions, BinaryOperator operator)
Sub New(expressions As BinaryExpression(), operator As BinaryOperator)
Parameters:
- expressions: Array of expressions
- operator: Represents the binary operator.
constructor (WhereExpression, WhereExpression, BinaryOperator)
Creates a new instance of the BinaryExpression class.
constructor(left: WhereExpression; right: WhereExpression; operator: BinaryOperator)
BinaryExpression(WhereExpression left, WhereExpression right, BinaryOperator operator)
Sub New(left As WhereExpression, right As WhereExpression, operator As BinaryOperator)
Parameters:
- left: The left side of the binary expression.
- right: The right side of the expression.
- operator: Represents the binary operator.
constructor (WhereExpression, Object, BinaryOperator)
Creates a new instance of the BinaryExpression class.
constructor(left: WhereExpression; value: Object; operator: BinaryOperator)
BinaryExpression(WhereExpression left, Object value, BinaryOperator operator)
Sub New(left As WhereExpression, value As Object, operator As BinaryOperator)
Parameters:
- left: The left side of the binary expression.
- value: Constant value
- operator: Represents the binary operator.
ApplyFieldMapping
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
Adjusts the source table number
method ApplySourceTableNumber(number: Int32): WhereExpression
WhereExpression ApplySourceTableNumber(Int32 number)
Function ApplySourceTableNumber(number As Int32) As WhereExpression
Parameters:
- number:
ApplyTableMapping
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
Adjusts the table names
method ApplyTableNameOrAlias(name: String)
void ApplyTableNameOrAlias(String name)
Sub ApplyTableNameOrAlias(name As String)
Parameters:
- name:
Combine (WhereExpression, WhereExpression): WhereExpression (declared in WhereExpression)
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:
Combine (WhereExpression, WhereExpression, BinaryOperator): WhereExpression (declared in WhereExpression)
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:
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
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
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
Left
The left side of the binary expression.
property Left: WhereExpression read write;
WhereExpression Left { get; set; }
Property Left() As WhereExpression
Operator
Represents the binary operator. Check mode at BinaryOperator.
property Operator: BinaryOperator read write;
BinaryOperator Operator { get; set; }
Property Operator() As BinaryOperator
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
Right
The right side of the expression.
property Right: WhereExpression read write;
WhereExpression Right { get; set; }
Property Right() As WhereExpression
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
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:
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
Left
The left side of the binary expression.
property Left: WhereExpression read write;
WhereExpression Left { get; set; }
Property Left() As WhereExpression
Operator
Represents the binary operator. Check mode at BinaryOperator.
property Operator: BinaryOperator read write;
BinaryOperator Operator { get; set; }
Property Operator() As BinaryOperator
Right
The right side of the expression.
property Right: WhereExpression read write;
WhereExpression Right { get; set; }
Property Right() As WhereExpression
Combine (WhereExpression, WhereExpression): WhereExpression (declared in WhereExpression)
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:
Combine (WhereExpression, WhereExpression, BinaryOperator): WhereExpression (declared in WhereExpression)
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:
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
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
BinaryExpression()
Sub New()
constructor (array of BinaryExpression, BinaryOperator)
Creates a new instance of the BinaryExpression class.
constructor(expressions: array of BinaryExpression; operator: BinaryOperator)
BinaryExpression(BinaryExpression[] expressions, BinaryOperator operator)
Sub New(expressions As BinaryExpression(), operator As BinaryOperator)
Parameters:
- expressions: Array of expressions
- operator: Represents the binary operator.
constructor (WhereExpression, WhereExpression, BinaryOperator)
Creates a new instance of the BinaryExpression class.
constructor(left: WhereExpression; right: WhereExpression; operator: BinaryOperator)
BinaryExpression(WhereExpression left, WhereExpression right, BinaryOperator operator)
Sub New(left As WhereExpression, right As WhereExpression, operator As BinaryOperator)
Parameters:
- left: The left side of the binary expression.
- right: The right side of the expression.
- operator: Represents the binary operator.
constructor (WhereExpression, Object, BinaryOperator)
Creates a new instance of the BinaryExpression class.
constructor(left: WhereExpression; value: Object; operator: BinaryOperator)
BinaryExpression(WhereExpression left, Object value, BinaryOperator operator)
Sub New(left As WhereExpression, value As Object, operator As BinaryOperator)
Parameters:
- left: The left side of the binary expression.
- value: Constant value
- operator: Represents the binary operator.
ApplyFieldMapping
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
Adjusts the source table number
method ApplySourceTableNumber(number: Int32): WhereExpression
WhereExpression ApplySourceTableNumber(Int32 number)
Function ApplySourceTableNumber(number As Int32) As WhereExpression
Parameters:
- number:
ApplyTableMapping
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
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
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
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