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/*
 * Copyright 2014 - 2021 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.parser;

import javax.persistence.metamodel.ManagedType;
import javax.persistence.metamodel.MapAttribute;
import javax.persistence.metamodel.PluralAttribute;
import javax.persistence.metamodel.SingularAttribute;
import javax.persistence.metamodel.Type;
import java.lang.reflect.Member;
import java.util.Map;

/**
 * @author Christian Beikov
 * @since 1.2.0
 */
public class MapEntryAttribute implements SingularAttribute>, QualifiedAttribute {

    private static final Type> ENTRY_TYPE = new Type>() {
        @Override
        public PersistenceType getPersistenceType() {
            return PersistenceType.BASIC;
        }

        @Override
        public Class> getJavaType() {
            return (Class>) (Class) Map.Entry.class;
        }
    };

    private final MapAttribute attribute;

    public MapEntryAttribute(MapAttribute attribute) {
        this.attribute = attribute;
    }

    @Override
    public PluralAttribute getPluralAttribute() {
        return attribute;
    }

    @Override
    public String getQualificationExpression() {
        return "ENTRY";
    }

    @Override
    public String getName() {
        return attribute.getName() + "_entry";
    }

    @Override
    public PersistentAttributeType getPersistentAttributeType() {
        return PersistentAttributeType.BASIC;
    }

    @Override
    public ManagedType getDeclaringType() {
        return null;
    }

    @Override
    public Class> getJavaType() {
        return (Class>) (Class) Map.Entry.class;
    }

    @Override
    public Member getJavaMember() {
        return null;
    }

    @Override
    public boolean isAssociation() {
        return false;
    }

    @Override
    public boolean isCollection() {
        return false;
    }

    @Override
    public boolean isId() {
        return false;
    }

    @Override
    public boolean isVersion() {
        return false;
    }

    @Override
    public boolean isOptional() {
        return false;
    }

    @Override
    public Type> getType() {
        return ENTRY_TYPE;
    }

    @Override
    public BindableType getBindableType() {
        return BindableType.SINGULAR_ATTRIBUTE;
    }

    @Override
    public Class> getBindableJavaType() {
        return (Class>) (Class) Map.Entry.class;
    }
}