/
FindOperator.ts
95 lines (77 loc) · 2.55 KB
/
FindOperator.ts
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import {FindOperatorType} from "./FindOperatorType";
/**
* Find Operator used in Find Conditions.
*/
export class FindOperator<T> {
// -------------------------------------------------------------------------
// Private Properties
// -------------------------------------------------------------------------
/**
* Operator type.
*/
private _type: FindOperatorType;
/**
* Parameter value.
*/
private _value: T|FindOperator<T>;
/**
* Indicates if parameter is used or not for this operator.
*/
private _useParameter: boolean;
/**
* Indicates if multiple parameters must be used for this operator.
*/
private _multipleParameters: boolean;
// -------------------------------------------------------------------------
// Constructor
// -------------------------------------------------------------------------
constructor(type: FindOperatorType, value: T|FindOperator<T>, useParameter: boolean = true, multipleParameters: boolean = false) {
this._type = type;
this._value = value;
this._useParameter = useParameter;
this._multipleParameters = multipleParameters;
}
// -------------------------------------------------------------------------
// Accessors
// -------------------------------------------------------------------------
/**
* Indicates if parameter is used or not for this operator.
* Extracts final value if value is another find operator.
*/
get useParameter(): boolean {
if (this._value instanceof FindOperator)
return this._value.useParameter;
return this._useParameter;
}
/**
* Indicates if multiple parameters must be used for this operator.
* Extracts final value if value is another find operator.
*/
get multipleParameters(): boolean {
if (this._value instanceof FindOperator)
return this._value.multipleParameters;
return this._multipleParameters;
}
/**
* Gets the Type of this FindOperator
*/
get type(): string {
return this._type;
}
/**
* Gets the final value needs to be used as parameter value.
*/
get value(): T {
if (this._value instanceof FindOperator)
return this._value.value;
return this._value;
}
/**
* Gets the child FindOperator if it exists
*/
get child(): FindOperator<T>|undefined {
if (this._value instanceof FindOperator)
return this._value;
return undefined;
}
}