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 * All rights reserved.
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 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * Neither the name of the HSQL Development Group nor the names of its
 * contributors may be used to endorse or promote products derived from this
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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package org.hsqldb;

import org.hsqldb.HsqlNameManager.HsqlName;
import org.hsqldb.types.Type;

import java.util.Locale;

/**
 * Base implementation of variables, columns of result or table.<p>
 *
 * @author Fred Toussi (fredt@users dot sourceforge.net)
 * @version 2.6.1
 * @since 1.9.0
 */
public class ColumnBase {

    private String    name;
    private String    table;
    private String    schema;
    private String    catalog;
    boolean           isWriteable;
    private boolean   isSearchable;
    protected byte    parameterMode;
    protected boolean isIdentity;
    protected byte    nullability;
    protected Type    dataType;

    ColumnBase() {
        this.nullability = SchemaObject.Nullability.NULLABLE;
    }

    public ColumnBase(String catalog, String schema, String table,
                      String name) {

        this.catalog     = catalog;
        this.schema      = schema;
        this.table       = table;
        this.name        = name;
        this.nullability = SchemaObject.Nullability.NULLABLE;
    }

    public ColumnBase(HsqlName catalog, ColumnSchema other, boolean toLower) {

        this.catalog = catalog.name;
        this.schema  = other.getSchemaNameString();
        this.table   = other.getTableNameString();
        this.name    = other.getNameString();

        if (toLower) {
            if (!catalog.isNameQuoted) {
                this.catalog = catalog.name.toLowerCase(Locale.ENGLISH);
            }

            HsqlName name = other.getName();

            if (!name.isNameQuoted) {
                this.name = name.name.toLowerCase(Locale.ENGLISH);
            }

            name = name.parent;

            if (name != null && !name.isNameQuoted) {
                this.table = name.name.toLowerCase(Locale.ENGLISH);
            }

            name = name.schema;

            if (name != null && !name.isNameQuoted) {
                this.schema = name.name.toLowerCase(Locale.ENGLISH);
            }
        }

        this.nullability  = other.getNullability();
        this.isIdentity   = other.isIdentity();
        this.isSearchable = other.isSearchable();
        this.isWriteable  = other.isWriteable();
    }

    public String getNameString() {
        return name;
    }

    public String getTableNameString() {
        return table;
    }

    public String getSchemaNameString() {
        return schema;
    }

    public String getCatalogNameString() {
        return catalog;
    }

    public void setIdentity(boolean value) {
        isIdentity = value;
    }

    public boolean isIdentity() {
        return isIdentity;
    }

    protected void setType(ColumnBase other) {
        nullability = other.nullability;
        dataType    = other.dataType;
    }

    public void setType(Type type) {
        this.dataType = type;
    }

    public boolean isNullable() {
        return !isIdentity && nullability == SchemaObject.Nullability.NULLABLE;
    }

    protected void setNullable(boolean value) {
        nullability = value ? SchemaObject.Nullability.NULLABLE
                            : SchemaObject.Nullability.NO_NULLS;
    }

    public byte getNullability() {
        return isIdentity ? SchemaObject.Nullability.NO_NULLS
                          : nullability;
    }

    public void setNullability(byte value) {
        nullability = value;
    }

    public boolean isWriteable() {
        return isWriteable;
    }

    public void setWriteable(boolean value) {
        isWriteable = value;
    }

    public boolean isSearchable() {
        return isSearchable;
    }

    public void setSearchable(boolean value) {
        isSearchable = value;
    }

    public Type getDataType() {
        return dataType;
    }

    public byte getParameterMode() {
        return parameterMode;
    }

    public void setParameterMode(byte mode) {
        this.parameterMode = mode;
    }
}
