Class ExternalDataType

Specifies the data type of data source columns in the information model. Can be converted to client side datatype with FromExternalDataType(type)

Since

2.0

Hierarchy (view full)

  • Enum
    • ExternalDataType

Properties

Blob Boolean Clob Currency Date DateTime Integer LongInteger Real SingleReal String Time Undefined

Methods

Cast Equals GetHashCode HasFlag ToString TryCast Equals

Default capability

And Or Xor

Properties

Static ReadonlyBlob

Blob: ExternalDataType

A blob column.

Static ReadonlyBoolean

Boolean: ExternalDataType

A bool column.

Static ReadonlyClob

Clob: ExternalDataType

A clob column, which in most ways is handled as a string column.

Static ReadonlyCurrency

Currency: ExternalDataType

A currency column.

Static ReadonlyDate

Date: ExternalDataType

A date column.

Static ReadonlyDateTime

DateTime: ExternalDataType

A date time column.

Static ReadonlyInteger

Integer: ExternalDataType

A integer column.

Static ReadonlyLongInteger

LongInteger: ExternalDataType

A long integer column.

Static ReadonlyReal

Real: ExternalDataType

A real column.

Static ReadonlySingleReal

SingleReal: ExternalDataType

A single real column.

Static ReadonlyString

String: ExternalDataType

A string column.

Static ReadonlyTime

Time: ExternalDataType

A time column.

Static ReadonlyUndefined

Undefined: ExternalDataType

The data type is unknown or unsupported.

Methods

Cast

  • Cast<T1, T2>(this, type): T1

  • Casts this object to the specified type. Throws error on failure.

    Type Parameters

    • T1

      The target type of the cast.

    • T2

      The type of the object to cast.

    Parameters

    Returns T1

Equals

  • Equals(obj): boolean

  • Determines whether the specified object is equal to the current object.

    Parameters

    • obj: any

      The object to compare with the current object.

    Returns boolean

    true if the specified object is equal to the current object; otherwise, false.

GetHashCode

  • GetHashCode(): number

  • Serves as the default hash function.

    Returns number

    A hash code for the current object.

HasFlag

  • HasFlag(flag): boolean

  • Determines whether one or more bit fields are set in the current instance.

    Parameters

    • flag: Enum

      An enumeration value.

    Returns boolean

    true if the bit field or bit fields that are set in flag are also set in the current instance; otherwise, false.

ToString

  • ToString(): string

  • Returns a string that represents the current object.

    Returns string

    A string that represents the current object.

TryCast

  • TryCast<T1, T2>(this, type): null | T1

  • Casts this object to the specified type. Returns null on failure.

    Type Parameters

    • T1

      The target type of the cast.

    • T2

      The type of the object to cast.

    Parameters

    Returns null | T1

StaticEquals

  • Equals(objA, objB): boolean

  • Determines whether the specified object instances are considered equal.

    Parameters

    • objA: any

      The first object to compare.

    • objB: any

      The second object to compare.

    Returns boolean

    true if the objects are considered equal; otherwise, false. If both objA and objB are null, the method returns true.

Default capability

And

  • And(...rest): this

  • Perform And operation on enum values.

    Parameters

    • Rest...rest: Enum[]

      The other enum values.

    Returns this

    The result.

    Since

    2.0

Or

  • Or(...rest): this

  • Perform Or operation on enum values.

    Parameters

    • Rest...rest: Enum[]

      The other enum values.

    Returns this

    The result.

    Since

    2.0

Xor

  • Xor(...rest): this

  • Perform Xor operation on enum values.

    Parameters

    • Rest...rest: Enum[]

      The other enum values.

    Returns this

    The result.

    Since

    2.0

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