src/org/objectweb/cjdbc/common/sql/schema/DatabaseTable.java

説明を見る。

package org.objectweb.cjdbc.common.sql.schema;

import java.io.Serializable;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Iterator;

import org.objectweb.cjdbc.common.xml.DatabasesXmlTags;

public class DatabaseTable implements Serializable
{
  private String name;

  private ArrayList columns;

  public DatabaseTable(String name)
  {
    this(name, new ArrayList());
  }

  public DatabaseTable(String name, int nbOfColumns)
  {
    this(name, new ArrayList(nbOfColumns));
  }

  private DatabaseTable(String name, ArrayList columns)
  {
    if (name == null)
      throw new IllegalArgumentException("Illegal null database table name in DatabaseTable constructor");

    this.name = name;
    this.columns = columns;
  }

  public String getName()
  {
    return name;
  }

  public void addColumn(DatabaseColumn column)
  {
    columns.add(column);
  }
  
  public void remove(String columnName)
  {
    columns.remove(getColumn(columnName));
  }
  
  public void remove(DatabaseColumn column)
  {
    columns.remove(column);
  }

  public void mergeColumns(DatabaseTable table) throws SQLException
  {
    if (table == null)
      return;

    ArrayList otherColumns = table.getColumns();
    if (otherColumns == null)
      return;

    DatabaseColumn c, original;
    int size = otherColumns.size();
    for (int i = 0; i < size; i++)
    {
      c = (DatabaseColumn) otherColumns.get(i);
      original = getColumn(c.getName());
      if (original == null)
        addColumn(c);
      else
      {
        if (!original.equalsIgnoreType(c))
          throw new SQLException(
            "Unable to merge tables: column '"
              + c.getName()
              + "' definition mismatch");
      }
    }
  }

  public ArrayList getColumns()
  {
    return columns;
  }

  public ArrayList getUniqueColumns()
  {
    ArrayList cols = new ArrayList();
    Iterator i;
    DatabaseColumn c;

    for (i = columns.iterator(); i.hasNext();)
    {
      c = (DatabaseColumn) i.next();
      if (c.isUnique())
        cols.add(c);
    }
    return cols;
  }

  public DatabaseColumn getColumn(String columnName)
  {
    DatabaseColumn c;
    for (Iterator i = columns.iterator(); i.hasNext();)
    {
      c = (DatabaseColumn) i.next();
      if (columnName.equalsIgnoreCase(c.getName()))
        return c;

    }
    return null;
  }

  public DatabaseColumn getColumn(String columnName, boolean isCaseSensitive)
  {
    if (!isCaseSensitive)
      return getColumn(columnName);

    DatabaseColumn c;
    for (Iterator i = columns.iterator(); i.hasNext();)
    {
      c = (DatabaseColumn) i.next();
      if (columnName.equals(c.getName()))
        return c;

    }
    return null;
  }

  public boolean equals(Object other)
  {
    if ((other == null) || !(other instanceof DatabaseTable))
      return false;

    DatabaseTable t = (DatabaseTable) other;
    return (t.getName().equals(name)) && (t.getColumns().equals(columns));
  }

  public boolean equalsIgnoreType(Object other)
  {
    if ((other == null) || !(other instanceof DatabaseTable))
      return false;

    DatabaseTable t = (DatabaseTable) other;
    if (!t.getName().equals(name))
      return false;

    DatabaseColumn c1, c2;
    Iterator iter = columns.iterator();
    while (iter.hasNext())
    {
      c1 = (DatabaseColumn) iter.next();
      c2 = t.getColumn(c1.getName());

      if (!c1.equalsIgnoreType(c2))
        return false; // Not compatible
    }
    return true;
  }

  public String getXml()
  {
    StringBuffer info = new StringBuffer();
    info.append(
      "<"
        + DatabasesXmlTags.ELT_DatabaseTable
        + " "
        + DatabasesXmlTags.ATT_tableName
        + "=\""
        + name
        + "\" "
        + DatabasesXmlTags.ATT_nbOfColumns
        + "=\""
        + columns.size()
        + "\">");
    for (int i = 0; i < columns.size(); i++)
      info.append(((DatabaseColumn) columns.get(i)).getXml());
    info.append("</" + DatabasesXmlTags.ELT_DatabaseTable + ">");
    return info.toString();
  }
}

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