com.blazebit.persistence.impl.function.tomultiset.ToMultisetFunction Maven / Gradle / Ivy

/*
 * Copyright 2014 - 2020 Blazebit.
 *
 * 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
 *
 *      http://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 com.blazebit.persistence.impl.function.tomultiset;

import com.blazebit.persistence.impl.SubqueryInternalBuilder;
import com.blazebit.persistence.impl.function.tostringjson.AbstractToStringJsonFunction;
import com.blazebit.persistence.impl.function.tostringxml.AbstractToStringXmlFunction;
import com.blazebit.persistence.impl.util.SqlUtils;
import com.blazebit.persistence.parser.expression.Subquery;
import com.blazebit.persistence.parser.expression.SubqueryExpression;
import com.blazebit.persistence.spi.FunctionRenderContext;
import com.blazebit.persistence.spi.JpqlFunction;
import com.blazebit.persistence.spi.JpqlFunctionProcessor;

import java.util.List;

/**
 * @author Christian Beikov
 * @since 1.5.0
 */
public class ToMultisetFunction implements JpqlFunction, JpqlFunctionProcessor {

    public static final String FUNCTION_NAME = "to_multiset";

    private final AbstractToStringJsonFunction toJsonFunction;
    private final AbstractToStringXmlFunction toXmlFunction;

    public ToMultisetFunction(AbstractToStringJsonFunction toJsonFunction, AbstractToStringXmlFunction toXmlFunction) {
        this.toJsonFunction = toJsonFunction;
        this.toXmlFunction = toXmlFunction;
    }

    @Override
    public boolean hasArguments() {
        return true;
    }

    @Override
    public boolean hasParenthesesIfNoArguments() {
        return true;
    }

    @Override
    public Class getReturnType(Class firstArgumentType) {
        return String.class;
    }

    @Override
    public Object process(CharSequence result, List