ColumnExpression<T> class
abstract
Database expression for a column.
- Inheritance
-
- Object
- Expression
- ColumnExpression
- Implementers
Constructors
-
ColumnExpression(Column<
T> column) - Creates a new ColumnExpression, this is typically done in generated code only.
Properties
-
column
→ Column<
T> -
Column that the expression is for.
final
-
columns
→ List<
Column> -
Returns a list of all
Columns in the expression.no setteroverride -
depthFirst
→ Iterable<
Expression> -
Iterator for all Expressions in the expression.
Iterates elements deterministically depth first.
no setterinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- index ↔ int?
-
Index of the expression in the query.
This is used to create unique query aliases for sub queries.
getter/setter pair
- isManyRelationExpression → bool
-
Returns true if the expression operates on a many relation column.
no setter
- operator → String
-
Returns the expression operator as a string.
no setter
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
forEachDepthFirstIndexed(
void action(int index, Expression expression)) → void -
Takes an action for each element.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
override
Operators
-
operator &(
Expression other) → Expression -
Database AND operator.
inherited
-
operator ==(
Object other) → bool -
The equality operator.
inherited
-
operator |(
Expression other) → Expression -
Database OR operator.
inherited