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Utilities for JPA, JDBC and DataSources

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/*
 * Copyright 2021 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.persistence.service;

import java.util.Map;

import jakarta.persistence.criteria.CriteriaBuilder;
import jakarta.persistence.criteria.ParameterExpression;

import org.omnifaces.persistence.criteria.Criteria.ParameterBuilder;

/**
 * Helper class of {@link BaseEntityService}.
 */
class UncheckedParameterBuilder implements ParameterBuilder {

    private final String field;
    private final CriteriaBuilder criteriaBuilder;
    private final Map parameters;

    public UncheckedParameterBuilder(String field, CriteriaBuilder criteriaBuilder, Map parameters) {
        this.field = field.replace('.', '$') + "_";
        this.criteriaBuilder = criteriaBuilder;
        this.parameters = parameters;
    }

    @Override
    @SuppressWarnings("unchecked")
    public  ParameterExpression create(Object value) {
        String name = field + parameters.size();
        parameters.put(name, value);
        Class type = (value == null) ? Object.class : value.getClass();
        return (ParameterExpression) criteriaBuilder.parameter(type, name);
    }

}