diff --git a/src/main/webapp/app/facet-composer/facet-composer.component.html b/src/main/webapp/app/facet-composer/facet-composer.component.html
index 24353a7..6dc41f5 100644
--- a/src/main/webapp/app/facet-composer/facet-composer.component.html
+++ b/src/main/webapp/app/facet-composer/facet-composer.component.html
@@ -19,7 +19,7 @@
 	  		 		<div formArrayName="{{facetTemplate.key}}" *ngFor="let facetTemplate of fieldsMap|keyvalue;" >
 						<div [formGroupName] ="ind" *ngFor="let fct of (getSingleFacetArray(facetTemplate.key)).controls; let ind=index;" style="border: 3px solid rgb(72, 157, 202); padding: 10px; margin: 5px;">
 									<mat-form-field  appearance="outline" >
-										<input matInput formControlName="facetName" [style.width.px]="350" type="text" [readonly]="true" style="font-size: large; font-weight: 700;" />
+										<input matInput formControlName="facetName" style="width: 350px" type="text" [readonly]="true" style="font-size: large; font-weight: 700;" />
 									</mat-form-field>
 									<mat-form-field>
 										 	<mat-label for="min" >occurr. min</mat-label>
@@ -105,6 +105,11 @@
 													<input matInput formControlName="val" type="number"/>
 													<mat-error>{{checkForErrorsIn(facetTemplate.key,ind,i,'number')}}</mat-error>
 											</mat-form-field>
+											<mat-form-field  *ngIf="x.get('tipo')?.value === 'complexType'">
+											 		<mat-label for="val">value</mat-label>
+											 		<textarea matInput style="width: 400px" formControlName="val"></textarea>
+													<mat-error>{{checkForErrorsIn(facetTemplate.key,ind,i,'complexType')}}</mat-error>
+											</mat-form-field >
 												<mat-form-field  *ngIf="x.get('tipo')?.value === 'boolean'">
 											 		<mat-label for="val">value</mat-label>
 													<input matInput formControlName="val" type="boolean"/>
diff --git a/src/main/webapp/app/facet-composer/facet-composer.component.ts b/src/main/webapp/app/facet-composer/facet-composer.component.ts
index bce2ded..aeb5368 100644
--- a/src/main/webapp/app/facet-composer/facet-composer.component.ts
+++ b/src/main/webapp/app/facet-composer/facet-composer.component.ts
@@ -1,3 +1,4 @@
+/* eslint-disable @typescript-eslint/no-unnecessary-condition */
 /* eslint-disable @typescript-eslint/no-unused-vars */
 /* eslint-disable no-labels */
 /* eslint-disable no-useless-escape */
@@ -20,7 +21,6 @@ import { MatExpansionModule } from '@angular/material/expansion';
 import { IFacetComposer, IFacetProps } from './i-facet-composer';
 import { SharedModule } from 'app/shared/shared.module';
 import { MatSelectFilterModule } from 'mat-select-filter';
-import { isEmpty } from 'rxjs';
 
 @Component({
   standalone: true,
@@ -79,6 +79,7 @@ export class FacetComposerComponent implements OnInit {
 		
 		optionTypes = [
     		{ value: 'boolean'},
+    		{ value: 'complexType'},
     		{ value: 'date'},//text
     		{ value: 'datetime'},//text
     		{ value: 'password'},
@@ -174,6 +175,11 @@ defaultValue={new Date().toISOString().substring(0, (new Date().toISOString().in
 				// eslint-disable-next-line no-useless-escape
 				valFc.setValidators([Validators.required,Validators.pattern('^\s*(true|false)\s*$')]);
 			}
+			if(newValue==='complexType'){
+				valFc.setValue('{}');
+				// eslint-disable-next-line no-useless-escape
+				valFc.setValidators([Validators.required, this.validateJsonString()]);
+			}
 			if(newValue==='datetime'){
 				valFc.setValue('');
 				valFc.setValue(new Date().toISOString());
@@ -206,10 +212,19 @@ defaultValue={new Date().toISOString().substring(0, (new Date().toISOString().in
        		const value = control.value;
 	        const isFormallyCorrect = /^(19|20)\d{2}-(0[1-9]|1[0,1,2])-(0[1-9]|[12][0-9]|3[01])T(0[0-9]|1[0-9]|2[0-4]):(0[0-9]|[1-5][0-9]):(0[0-9]|[1-5][0-9])\.[0-9]{3}Z$/.test(value);
 			const datetimeValid = isFormallyCorrect	&& this.isIsoDate(control.value);
-			alert('datetimeValid?...'+datetimeValid);
+			//alert('datetimeValid?...'+datetimeValid);
 			return !datetimeValid ? {datetimeIso:true}: null;
 		    }
 		  }
+		  private validateJsonString():ValidatorFn {
+			//  alert('prova!');
+		    return (control: AbstractControl): ValidationErrors |null => {
+			const jsonValid = this.isJsonString(control.value);
+			//alert('datetimeValid?...'+datetimeValid);
+			return !jsonValid ? {validJson:true}: null;
+		    }
+		  }
+		  
 		  
 		  checkForErrors(valFc:AbstractControl, inputType:string): string{
 			  let errorMsg: string;
@@ -222,24 +237,41 @@ defaultValue={new Date().toISOString().substring(0, (new Date().toISOString().in
 						if(!this.isIsoDate(valFc.value)){
 					 				errorMsg = 'Date is not in correct ISO format';
 				 	}
-			 }else{
-					 if(valFc.hasError('pattern')){
-					  errorMsg = ''+ valFc.value+'is not a correct value';
-					 if(!this.checkIfEmpty(valFc.value)&& inputType==='float'){
-						  errorMsg = 'input is not a decimal number (use . as a separator)';
-					 }
-					 if(!this.checkIfEmpty(valFc.value)&& inputType==='boolean'){
-						  errorMsg = 'please enter true or false';
-					 }
-					if(!this.checkIfEmpty(valFc.value)&& inputType==='date'){
-					  errorMsg = 'date or date format is not correct';
-					  }
-				  }
-				}
+		
+			 }else	if(!this.checkIfEmpty(valFc.value)&& inputType==='complexType'){
+					  if(!this.isJsonString(valFc.value)){
+					 				errorMsg = 'Please insert a valid JSON string';
+				 	}
+					  }else
+						 	{		
+								 if(valFc.hasError('pattern')){
+								  errorMsg = ''+ valFc.value+'is not a correct value';
+								 if(!this.checkIfEmpty(valFc.value)&& inputType==='float'){
+									  errorMsg = 'input is not a decimal number (use . as a separator)';
+								 }
+								 if(!this.checkIfEmpty(valFc.value)&& inputType==='boolean'){
+									  errorMsg = 'please enter true or false';
+								 }
+								if(!this.checkIfEmpty(valFc.value)&& inputType==='date'){
+								  errorMsg = 'date or date format is not correct';
+								  }
+							  }
+							}
 			  return errorMsg;
 		  }
 		  
-
+		  isJsonString(newValue:string):boolean {
+		      let isOk = true;
+		        try {
+		            JSON.parse(newValue);
+		            isOk = true;
+		        } catch (ex) {
+		            // set parse error if it fails
+		            isOk = false;
+		        }
+		      console.debug('>>>>>>>>JSON OK?.........'+isOk);
+		        return isOk;
+		    }
 		  
 		 checkDatetime(denoFacet:string, indexFct:number, prop:IFacetProps):string{
 			 let errorMsg: string;
@@ -263,14 +295,21 @@ defaultValue={new Date().toISOString().substring(0, (new Date().toISOString().in
 			 let errorMsg: string;
 			 // eslint-disable-next-line prefer-const
 			 errorMsg='';
+			 console.debug('************');
 			 const valFc = this.getPropsGroup(denoFacet,indexFct).get(prop.name)!;
+			 /*
+			 if(prop.validations.length>1){
+				 console.debug('------>>>Validator deno 1...'+prop.validations[0].validator)
+				 console.debug('------>>>Validator deno 2...'+prop.validations[1].validator)
+			 }*/
 						for(let i=0; i<prop.validations.length; i++){
 						const valObj = prop.validations[i];
+						//console.debug('Validator index...'+i)
 						if(valFc.hasError(valObj.validator)){
-							console.debug()
 						  errorMsg = valObj.message;
 					  }
 					} 
+			 //console.debug('************');
 			  return errorMsg;
 		  }
 		  
@@ -383,7 +422,7 @@ defaultValue={new Date().toISOString().substring(0, (new Date().toISOString().in
 			              this.dialogRef.close('error');
 			          });
 				}else{
-					alert("Data provided is not valid!");
+				//	alert("Data provided is not valid!");
 				}
 	          
 			}