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/*
 * Copyright OmniFaces
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */
package org.omnifaces.component.validator;

import java.util.HashSet;
import java.util.List;

import javax.faces.component.FacesComponent;
import javax.faces.component.UIInput;
import javax.faces.context.FacesContext;

import org.omnifaces.validator.MultiFieldValidator;

/**
 * 

* The <o:validateUnique> validates if ALL of the given {@link UIInput} components have an unique * value. *

* The default message is *

{0}: Please fill out an unique value for all of those fields
*

* For general usage instructions, refer {@link ValidateMultipleFields} documentation. * * @author Bauke Scholtz * @see ValidateMultipleFields * @see ValidatorFamily * @see MultiFieldValidator */ @FacesComponent(ValidateUnique.COMPONENT_TYPE) public class ValidateUnique extends ValidateMultipleFields { // Public constants ----------------------------------------------------------------------------------------------- /** The standard component type. */ public static final String COMPONENT_TYPE = "org.omnifaces.component.validator.ValidateUnique"; // Actions -------------------------------------------------------------------------------------------------------- /** * Validate if all values are unique. */ @Override public boolean validateValues(FacesContext context, List inputs, List values) { return (new HashSet<>(values).size() == inputs.size()); } }