Libraries.Data.Database.Support.TableTarget Documentation

This is a support class not exposed to the user that holds information about a reference to table used in a query. This class holds the name of the table, the alias of the table if there is one, and whether or not the name is referencing another query.

Inherits from: Libraries.Language.Object, Libraries.Data.Database.Support.RemappableName

Actions Documentation

Compare(Libraries.Language.Object object)

This action compares two object hash codes and returns an integer. The result is larger if this hash code is larger than the object passed as a parameter, smaller, or equal. In this case, -1 means smaller, 0 means equal, and 1 means larger. This action was changed in Quorum 7 to return an integer, instead of a CompareResult object, because the previous implementation was causing efficiency issues.

Parameters

Return

integer: The Compare result, Smaller, Equal, or Larger.

Example

Object o
Object t
integer result = o:Compare(t) //1 (larger), 0 (equal), or -1 (smaller)

Equals(Libraries.Language.Object object)

This action determines if two objects are equal based on their hash code values.

Parameters

Return

boolean: True if the hash codes are equal and false if they are not equal.

Example

use Libraries.Language.Object
use Libraries.Language.Types.Text
Object o
Text t
boolean result = o:Equals(t)

GetHashCode()

This action gets the hash code for an object.

Return

integer: The integer hash code of the object.

Example

Object o
integer hash = o:GetHashCode()

GetRemappedName()

Returns the alias

Return

text:

GetSubquery()

Returns the query object being used as a table.

Return

Libraries.Data.Database.Find:

GetTable()

Returns the name of this target.

Return

text:

HasColumn(text column)

FOR USE WHEN A SUBQUERY Subqueries act as a table and this action is to check the "columns" of the table this subquery mimics.

Parameters

  • text column

Return

boolean:

IsSubquery()

Returns true if this table is a subquery.

Return

boolean:

SetIsSubquery(boolean isSubquery)

Set to true if this is subquery. Query classes use this because how the query is written changes if a subquery is being used.

Parameters

  • boolean isSubquery

SetRemappedName(text remappedName)

Sets the alias

Parameters

  • text remappedName

SetSubquery(Libraries.Data.Database.Find subquery)

Sets the Subquery that the given name will reference. Only Find queries are supported for sub queries.

Parameters

SetTable(text table)

Sets the name of this target.

Parameters

  • text table