com.mybatis.jpa.definition.template.InsertSelectiveSqlTemplate Maven / Gradle / Ivy

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package com.mybatis.jpa.definition.template;

import com.mybatis.jpa.util.ColumnMetaResolver;
import com.mybatis.jpa.util.PersistentUtil;

import java.lang.reflect.Field;

/**
 * @author svili
 **/
public class InsertSelectiveSqlTemplate implements SqlTemplate {

    @Override
    public String parseSQL(Class type) {
        // columns
        StringBuilder columns = new StringBuilder();
        columns.append("  ");
        // values
        StringBuilder values = new StringBuilder();
        values.append("  ");

        for (Field field : PersistentUtil.getPersistentFields(type)) {
            // columns
            columns.append(" ");
            columns.append(PersistentUtil.getColumnName(field) + ", ");
            columns.append(" ");
            // values
            values.append(" ");
            values.append(ColumnMetaResolver.resolveSqlPlaceholder(field) + ", ");
            values.append(" ");
        }

        columns.append(" ");
        values.append(" ");

        return "INSERT INTO " + PersistentUtil.getTableName(type) + columns.toString() + " VALUES "
                + values.toString();
    }

}