@knora/core
Version:
Knora ui module: core
169 lines • 17.7 kB
JavaScript
import { GravsearchGenerationService } from '../../services/v2/grav-search.service';
import { KnoraConstants, KnoraSchema } from './knora-constants';
export class Equals {
constructor() {
this.type = KnoraConstants.EqualsComparisonOperator;
this.label = KnoraConstants.EqualsComparisonLabel;
}
getClassName() {
return 'Equals';
}
}
export class NotEquals {
constructor() {
this.type = KnoraConstants.NotEqualsComparisonOperator;
this.label = KnoraConstants.NotEqualsComparisonLabel;
}
getClassName() {
return 'NotEquals';
}
}
export class GreaterThanEquals {
constructor() {
this.type = KnoraConstants.GreaterThanEqualsComparisonOperator;
this.label = KnoraConstants.GreaterThanEqualsComparisonLabel;
}
getClassName() {
return 'GreaterThanEquals';
}
}
export class GreaterThan {
constructor() {
this.type = KnoraConstants.GreaterThanComparisonOperator;
this.label = KnoraConstants.GreaterThanComparisonLabel;
}
getClassName() {
return 'GreaterThan';
}
}
export class LessThan {
constructor() {
this.type = KnoraConstants.LessThanComparisonOperator;
this.label = KnoraConstants.LessThanComparisonLabel;
}
getClassName() {
return 'LessThan';
}
}
export class LessThanEquals {
constructor() {
this.type = KnoraConstants.LessThanEqualsComparisonOperator;
this.label = KnoraConstants.LessThanQualsComparisonLabel;
}
getClassName() {
return 'LessThanEquals';
}
}
export class Exists {
constructor() {
this.type = KnoraConstants.ExistsComparisonOperator;
this.label = KnoraConstants.ExistsComparisonLabel;
}
getClassName() {
return 'Exists';
}
}
export class Like {
constructor() {
this.type = KnoraConstants.LikeComparisonOperator;
this.label = KnoraConstants.LikeComparisonLabel;
}
getClassName() {
return 'Like';
}
}
export class Match {
constructor() {
this.type = KnoraConstants.MatchComparisonOperator;
this.label = KnoraConstants.MatchComparisonLabel;
}
getClassName() {
return 'Match';
}
}
/**
* Combination of a comparison operator and a value literal or an IRI.
* In case the comparison operator is 'Exists', no value is given.
*/
export class ComparisonOperatorAndValue {
constructor(comparisonOperator, value) {
this.comparisonOperator = comparisonOperator;
this.value = value;
}
}
/**
* Represents a property's value as a literal with the indication of its type.
*/
export class ValueLiteral {
/**
* Constructs a [ValueLiteral].
*
* @param {string} value the literal representation of the value.
* @param {string} type the type of the value (making use of xsd).
*/
constructor(value, type) {
this.value = value;
this.type = type;
}
/**
* Creates a type annotated value literal to be used in a SPARQL query.
*
* @param schema indicates the Knora schema to be used.
* @returns {string}
*/
toSparql(schema) {
let literalType;
// check if a Knora schema conversion is necessary, e.g., knora-api:dateValue (complex) to knora-api:date (simple).
// xsd types will remain unchanged
if (schema === KnoraSchema.simple && GravsearchGenerationService.typeConversionComplexToSimple[this.type] !== undefined) {
// convert to simple schema
literalType = GravsearchGenerationService.typeConversionComplexToSimple[this.type];
}
else {
// do not convert
literalType = this.type;
}
return `"${this.value}"^^<${literalType}>`;
}
}
/**
* Represents an IRI.
*/
export class IRI {
/**
* Constructs an [IRI].
*
* @param {string} iri the IRI of a resource instance.
*/
constructor(iri) {
this.iri = iri;
}
/**
* Creates a SPARQL representation of the IRI.
*
* @param schema indicates the Knora schema to be used.
* @returns {string}
*/
toSparql(schema) {
// this is an instance Iri and does not have to be converted.
return `<${this.iri}>`;
}
}
/**
* Represents a property, the specified comparison operator, and value.
*/
export class PropertyWithValue {
/**
* Constructs a [PropertyWithValue].
*
* @param {Property} property the specified property.
* @param {ComparisonOperatorAndValue} valueLiteral the specified comparison operator and value.
* @param isSortCriterion indicates if the property is used as a sort criterion.
*/
constructor(property, valueLiteral, isSortCriterion) {
this.property = property;
this.valueLiteral = valueLiteral;
this.isSortCriterion = isSortCriterion;
}
}
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{ GravsearchGenerationService } from '../../services/v2/grav-search.service';\nimport { Property } from '../../services/v2/ontology-cache.service';\n\nimport { KnoraConstants, KnoraSchema } from './knora-constants';\n\n/**\n * An abstract interface representing a comparison operator.\n * This interface is implemented for the supported comparison operators.\n */\nexport interface ComparisonOperator {\n\n    // type of comparison operator\n    type: string;\n\n    // the label of the comparison operator to be presented to the user.\n    label: string;\n\n    // returns the class name when called on an instance\n    getClassName(): string;\n}\n\nexport class Equals implements ComparisonOperator {\n\n    type = KnoraConstants.EqualsComparisonOperator;\n    label = KnoraConstants.EqualsComparisonLabel;\n\n    constructor() {\n    }\n\n    getClassName() {\n        return 'Equals';\n    }\n}\n\n\nexport class NotEquals implements ComparisonOperator {\n\n    type = KnoraConstants.NotEqualsComparisonOperator;\n    label = KnoraConstants.NotEqualsComparisonLabel;\n\n    constructor() {\n    }\n\n    getClassName() {\n        return 'NotEquals';\n    }\n}\n\nexport class GreaterThanEquals implements ComparisonOperator {\n\n    type = KnoraConstants.GreaterThanEqualsComparisonOperator;\n    label = KnoraConstants.GreaterThanEqualsComparisonLabel;\n\n    constructor() {\n    }\n\n    getClassName() {\n        return 'GreaterThanEquals';\n    }\n}\n\nexport class GreaterThan implements ComparisonOperator {\n\n    type = KnoraConstants.GreaterThanComparisonOperator;\n    label = KnoraConstants.GreaterThanComparisonLabel;\n\n    constructor() {\n    }\n\n    getClassName() {\n        return 'GreaterThan';\n    }\n}\n\nexport class LessThan implements ComparisonOperator {\n\n    type = KnoraConstants.LessThanComparisonOperator;\n    label = KnoraConstants.LessThanComparisonLabel;\n\n    constructor() {\n    }\n\n    getClassName() {\n        return 'LessThan';\n    }\n}\n\nexport class LessThanEquals implements ComparisonOperator {\n\n    type = KnoraConstants.LessThanEqualsComparisonOperator;\n    label = KnoraConstants.LessThanQualsComparisonLabel;\n\n    constructor() {\n    }\n\n    getClassName() {\n        return 'LessThanEquals';\n    }\n}\n\n\nexport class Exists implements ComparisonOperator {\n\n    type = KnoraConstants.ExistsComparisonOperator;\n    label = KnoraConstants.ExistsComparisonLabel;\n\n    constructor() {\n    }\n\n    getClassName() {\n        return 'Exists';\n    }\n}\n\nexport class Like implements ComparisonOperator {\n\n    type = KnoraConstants.LikeComparisonOperator;\n    label = KnoraConstants.LikeComparisonLabel;\n\n    constructor() {\n    }\n\n    getClassName() {\n        return 'Like';\n    }\n\n}\n\nexport class Match implements ComparisonOperator {\n\n    type = KnoraConstants.MatchComparisonOperator;\n    label = KnoraConstants.MatchComparisonLabel;\n\n    constructor() {\n    }\n\n    getClassName() {\n        return 'Match';\n    }\n\n}\n\n/**\n * Combination of a comparison operator and a value literal or an IRI.\n * In case the comparison operator is 'Exists', no value is given.\n */\nexport class ComparisonOperatorAndValue {\n\n    constructor(readonly comparisonOperator: ComparisonOperator, readonly value?: Value) {\n    }\n}\n\n/**\n * An abstract interface representing a value: an IRI or a literal.\n */\nexport interface Value {\n\n    /**\n     * Turns the value into a SPARQL string representation.\n     *\n     * @param schema indicates the Knora schema to be used.\n     * @returns {string} SPARQL representation of the value.\n     */\n    toSparql(schema: KnoraSchema): string;\n\n}\n\n/**\n * Represents a property's value as a literal with the indication of its type.\n */\nexport class ValueLiteral implements Value {\n\n    /**\n     * Constructs a [ValueLiteral].\n     *\n     * @param {string} value the literal representation of the value.\n     * @param {string} type the type of the value (making use of xsd).\n     */\n    constructor(\n        public readonly value: string,\n        public readonly type: string) {\n    }\n\n\n    /**\n     * Creates a type annotated value literal to be used in a SPARQL query.\n     *\n     * @param schema indicates the Knora schema to be used.\n     * @returns {string}\n     */\n    public toSparql(schema: KnoraSchema): string {\n\n        let literalType: string;\n\n        // check if a Knora schema conversion is necessary, e.g., knora-api:dateValue (complex) to knora-api:date (simple).\n        // xsd types will remain unchanged\n        if (schema === KnoraSchema.simple && GravsearchGenerationService.typeConversionComplexToSimple[this.type] !== undefined) {\n            // convert to simple schema\n            literalType = GravsearchGenerationService.typeConversionComplexToSimple[this.type];\n        } else {\n            // do not convert\n            literalType = this.type;\n        }\n        return `\"${this.value}\"^^<${literalType}>`;\n    }\n\n}\n\n/**\n * Represents an IRI.\n */\nexport class IRI implements Value {\n\n    /**\n     * Constructs an [IRI].\n     *\n     * @param {string} iri the IRI of a resource instance.\n     */\n    constructor(readonly iri: string) {\n    }\n\n    /**\n     * Creates a SPARQL representation of the IRI.\n     *\n     * @param schema indicates the Knora schema to be used.\n     * @returns {string}\n     */\n    public toSparql(schema: KnoraSchema): string {\n        // this is an instance Iri and does not have to be converted.\n        return `<${this.iri}>`;\n    }\n\n}\n\n/**\n * An abstract interface that represents a value.\n * This interface has to be implemented for all value types (value component classes).\n */\nexport interface PropertyValue {\n\n    /**\n     * Type of the value.\n     */\n    type: string;\n\n    /**\n     * Returns the value.\n     *\n     * @returns {Value}.\n     */\n    getValue(): Value;\n\n}\n\n/**\n * Represents a property, the specified comparison operator, and value.\n */\nexport class PropertyWithValue {\n\n    /**\n     * Constructs a [PropertyWithValue].\n     *\n     * @param {Property} property the specified property.\n     * @param {ComparisonOperatorAndValue} valueLiteral the specified comparison operator and value.\n     * @param isSortCriterion indicates if the property is used as a sort criterion.\n     */\n    constructor(\n        readonly property: Property,\n        readonly valueLiteral: ComparisonOperatorAndValue,\n        readonly isSortCriterion: Boolean) {\n    }\n\n}\n\n/**\n * a list, which is used in the mat-autocomplete form field\n * contains objects with id and name. the id is usual the iri\n */\nexport interface AutocompleteItem {\n    iri: string;\n    name: string;\n    label?: string;\n}\n\n"]}