new BuildingExpression(parent)
Helper class to build jsDataQuery
Parameters:
| Name | Type | Description |
|---|---|---|
parent |
BuildingExpression |
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Methods
addOperand(expr)
Parameters:
| Name | Type | Description |
|---|---|---|
expr |
BuildingExpression |
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appendExpression(op) → {BuildingExpression}
Parameters:
| Name | Type | Description |
|---|---|---|
op |
OperatorDescriptor |
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Returns:
- Type
- BuildingExpression
build() → {sqlFun|null}
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Returns:
- Type
- sqlFun | null
createChildExpression()
creates a new expression as a child of this one, so that the new expression is an operand of the current one.
Useful if operator is we have a+b+c+d and then comes *, or we have a < b and then comes +
i.e. if evaluation order of new operator is less than the current one
The new expression has last operand as first operand, so the result is (a+b+c+(d*...
Returns the new created child expression, in this example d*
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createList(parent)
Creates an operation into a parent expression
Parameters:
| Name | Type | Description |
|---|---|---|
parent |
BuildingExpression |
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createParentesizedExpression(child)
Creates an operation in parentheses into a parent expression
Parameters:
| Name | Type | Description |
|---|---|---|
child |
BuildingExpression |
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nextParentList()
Gets the root expression
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outerExpression() → {BuildingExpression}
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Returns:
- Type
- BuildingExpression