FDO .NET API Reference

Feature Data Objects

OSGeo::FDO::Expression Namespace Reference

Classes
class	BinaryExpression
	The BinaryExpression class derives from Expression and represents string concatenation and the simple arithmetic operations add, subtract, multiply, and divide. More...
class	BLOBValue
	The BLOBValue class derives from LOBValue and represents a literal BLOB value. More...
class	BooleanValue
	The BooleanValue class derives from DataValue and represents a Boolean value. More...
class	ByteValue
	The ByteValue class derives from DataValue and represents a literal byte value. More...
class	CLOBValue
	The CLOBValue class derives from LOBValue and represents a literal CLOB value. More...
class	ComputedIdentifier
	The ComputedIdentifier class derives from Identifier and represents an expression with alias. The name or alias must be a simple name and should not be scoped or contain the the schema name. The ComputedIdentifier can be used to provide an alias to an expression. More...
class	DataValue
	The DataValue class derives from LiteralValue and represents a literal value such as a string or a number. More...
class	DataValueCollection
	DataValueCollection is a collection of DataValue objects. More...
class	DateTimeValue
	The DateTimeValue class derives from DataValue and represents a date or time. More...
class	DecimalValue
	The DecimalValue class derives from DataValue and represents a decimal value. More...
class	DoubleValue
	The DoubleValue class derives from DataValue and represents a double-precision floating point number. More...
class	Expression
	Expression is an abstract base class that forms the root of an expression tree. The Expression class contains operations for converting between the well defined text representation and the object representation of an expression. More...
class	ExpressionCollection
	ExpressionCollection is a collection of Expression objects. More...
class	Function
	The Function class derives from Expression and represents a function call. As such it defines the name of the function and the collection of arguments to be passed to it. More...
class	GeometryValue
	The GeometryValue class derives from LiteralValue and represents a geometric value. More...
class	Identifier
	The Identifier class derives from Expression and represents an identifier, such as a class name or property name. Identifiers can be just a name or they can be scoped to a particular context. For example, consider a Person class that has a DataProperty called "Name" and a ClassProperty called "Address". The Address class has DataProperties "Street", "City", and "Zip Code". When manipulating instances of a Person, the "Name" property can be referred to by the property name "Name". The "City" property is scoped inside the "Address" property, hence must be referred to by the property name "Address.City". More...
interface	IExpressionProcessor
	The IExpressionProcessor interface can be used to process the nodes in an Expression tree. It declares an process operation for each concrete class in the Expression hierarchy. Providers or client applications can create classes that realize this interface to do something meaningful with an Expression hierarchy. For example, an RDBMS feature provider implements a processor class to convert an Expression hierarchy to the SQL equivalent syntax. More...
class	IExpressionProcessorImp
	The IExpressionProcessor interface can be used to process the nodes in an Expression tree. It declares an process operation for each concrete class in the Expression hierarchy. Providers or client applications can create classes that realize this interface to do something meaningful with an Expression hierarchy. For example, an RDBMS feature provider implements a processor class to convert an Expression hierarchy to the SQL equivalent syntax. More...
class	Int16Value
	The Int16Value class derives from DataValue and represents a 16-bit signed integer value. More...
class	Int32Value
	The Int32Value class derives from DataValue and represents a 32-bit signed integer value. More...
class	Int64Value
	The Int64Value class derives from DataValue and represents a 64-bit signed integer value. More...
class	LiteralValue
	LiteralValue is an abstract base class that derives from ValueExpression to form the root for all literal value types. More...
class	LOBValue
	The LOBValue class derives from DataValue and represents a literal BLOB value. More...
class	Parameter
	The Parameter class derives from ValueExpression and represents a substitution parameter in the expression. Parameters are represented by a name: when expressions are evaluated, the caller must supply a value to be bound to each parameter name. More...
class	SingleValue
	The SingleValue class derives from DataValue and represents a single precision floating point number. More...
class	StringValue
	The StringValue class derives from DataValue and represents a literal string. More...
class	UnaryExpression
	The UnaryExpression class derives from Expression and allows negation of arithmetic expressions. More...
class	ValueExpression
	ValueExpression is an abstract base class that derives from Expression to form the root for all value expression types. More...
Enumerations
enum	BinaryOperations {   BinaryOperations_Add = FdoBinaryOperations_Add,   BinaryOperations_Subtract = FdoBinaryOperations_Subtract,   BinaryOperations_Multiply = FdoBinaryOperations_Multiply,   BinaryOperations_Divide = FdoBinaryOperations_Divide }
	The BinaryOperations enumeration lists the binary expression operations available. More...
Variables
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor
public __gc __interface	IExpressionProcessor

---

Comments or suggestions? Send us feedback.