src/org/objectweb/cjdbc/common/sql/schema/DatabaseSchema.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 org.objectweb.cjdbc.common.xml.DatabasesXmlTags;

public class DatabaseSchema implements Serializable
{
  private ArrayList tables;
  private ArrayList procedures;

  public DatabaseSchema()
  {
    tables = new ArrayList();
    procedures = new ArrayList();
  }

  public DatabaseSchema(int nbOfTables)
  {
    tables = new ArrayList(nbOfTables);
    procedures = new ArrayList();
  }

  public DatabaseSchema(DatabaseSchema schema)
  {
    if (schema == null)
      throw new IllegalArgumentException("Illegal null database schema in DatabaseSchema(DatabaseSchema) constructor");

    tables = new ArrayList(schema.getTables());
    procedures = new ArrayList(schema.getProcedures());
  }

  public void addTable(DatabaseTable table)
  {
    if (table == null)
      throw new IllegalArgumentException("Illegal null database table in addTable(DatabaseTable) method");
    tables.add(table);
  }

  public void addProcedure(DatabaseProcedure procedure)
  {
    if (procedure == null)
      throw new IllegalArgumentException("Illegal null database table in addTable(DatabaseTable) method");
    procedures.add(procedure);
  }

  public void removeTable(DatabaseTable table)
  {
    if (table == null)
      throw new IllegalArgumentException("Illegal null database table in removeTable(DatabaseTable) method");
    tables.remove(table);
  }

  public void removeProcedure(DatabaseProcedure procedure)
  {
    if (procedure == null)
      throw new IllegalArgumentException("Illegal null database procedure in removeProcedure(DatabaseProcedure) method");
    procedures.remove(procedure);
  }

  public void mergeSchema(DatabaseSchema databaseSchema) throws SQLException
  {
    if (databaseSchema == null)
      throw new IllegalArgumentException("Illegal null database schema in mergeSchema(DatabaseSchema) method");

    ArrayList otherTables = databaseSchema.getTables();
    if (otherTables.size() == 0)
      return;

    DatabaseTable table, originalTable;
    int size = otherTables.size();
    for (int i = 0; i < size; i++)
    {
      table = (DatabaseTable) otherTables.get(i);
      originalTable = getTable(table.getName());
      if (originalTable == null)
        addTable(table);
      else
        originalTable.mergeColumns(table);
    }

    ArrayList otherProcedures = databaseSchema.getProcedures();
    if (otherProcedures.size() == 0)
      return;

    DatabaseProcedure procedure, originalProcedure;
    int sizep = otherProcedures.size();
    for (int i = 0; i < sizep; i++)
    {
      procedure = (DatabaseProcedure) otherProcedures.get(i);
      originalProcedure = getProcedure(procedure.getName());
      if (originalProcedure == null)
        addProcedure(procedure);
      else
        originalProcedure.mergeParameters(procedure);
    }
  }

  public ArrayList getTables()
  {
    return tables;
  }

  public ArrayList getProcedures()
  {
    return procedures;
  }

  public DatabaseTable getTable(String tableName)
  {
    if (tableName == null)
      return null;

    DatabaseTable t;
    int size = tables.size();
    for (int i = 0; i < size; i++)
    {
      t = (DatabaseTable) tables.get(i);
      if (tableName.compareTo(t.getName()) == 0)
        return t;
    }
    return null;
  }

  public DatabaseProcedure getProcedure(String procedureName)
  {
    if (procedureName == null)
      return null;

    DatabaseProcedure t;
    int size = procedures.size();
    for (int i = 0; i < size; i++)
    {
      t = (DatabaseProcedure) procedures.get(i);
      if (procedureName.compareTo(t.getName()) == 0)
        return t;
    }
    return null;
  }

  public DatabaseTable getTable(String tableName, boolean isCaseSensitive)
  {
    if (isCaseSensitive)
      return getTable(tableName);

    if (tableName == null)
      return null;

    DatabaseTable t;
    int size = tables.size();
    for (int i = 0; i < size; i++)
    {
      t = (DatabaseTable) tables.get(i);
      if (tableName.equalsIgnoreCase(t.getName()))
        return t;
    }
    return null;
  }

  public boolean hasTable(String tableName)
  {
    if (tableName == null)
      return false;

    DatabaseTable t;
    int size = tables.size();
    for (int i = 0; i < size; i++)
    {
      t = (DatabaseTable) tables.get(i);
      if (tableName.equals(t.getName()))
        return true;
    }
    return false;
  }

  public boolean hasProcedure(String procedureName)
  {
    if (procedureName == null)
      return false;

    DatabaseProcedure t;
    int size = procedures.size();
    for (int i = 0; i < size; i++)
    {
      t = (DatabaseProcedure) procedures.get(i);
      if (procedureName.equals(t.getName()))
        return true;
    }
    return false;
  }

  public boolean isCompatibleSubset(DatabaseSchema other)
  {
    DatabaseTable table, otherTable;
    int size = tables.size();
    for (int i = 0; i < size; i++)
    {
      // Parse all tables
      table = (DatabaseTable) tables.get(i);
      otherTable = other.getTable(table.getName());
      if (otherTable == null)
        return false; // Not present
      else if (!table.equalsIgnoreType(otherTable))
        return false; // Not compatible
    }
    DatabaseProcedure procedure, otherProcedure;
    int sizep = procedures.size();
    for (int i = 0; i < sizep; i++)
    {
      // Parse all procedures
      procedure = (DatabaseProcedure) procedures.get(i);
      otherProcedure = other.getProcedure(procedure.getName());
      if (otherProcedure == null)
        return false; // Not present
      else if (!procedure.equals(otherProcedure))
        return false; // Not compatible
    }
    return true; // Ok, all tables passed the test
  }

  public boolean isCompatibleWith(DatabaseSchema other)
  {
    DatabaseTable table, otherTable;
    int size = tables.size();
    for (int i = 0; i < size; i++)
    { // Parse all tables
      table = (DatabaseTable) tables.get(i);
      otherTable = other.getTable(table.getName());
      if (otherTable == null)
        continue; // Not present in other schema
      else if (!table.equalsIgnoreType(otherTable))
        return false; // Not compatible
    }
    DatabaseProcedure procedure, otherProcedure;
    int sizep = procedures.size();
    for (int i = 0; i < sizep; i++)
    { // Parse all procedures
      procedure = (DatabaseProcedure) procedures.get(i);
      otherProcedure = other.getProcedure(procedure.getName());
      if (otherProcedure == null)
        continue; // Not present
      else if (!procedure.equals(otherProcedure))
        return false; // Not compatible
    }
    return true; // Ok, all tables passed the test
  }

  public boolean equals(Object other)
  {
    boolean equal = true;
    if ((other == null) || !(other instanceof DatabaseSchema))
      return false;
    if (tables == null)
      equal &= ((DatabaseSchema) other).getTables() == null;
    else
      equal &= tables.equals(((DatabaseSchema) other).getTables());
    if (procedures == null)
      equal &= ((DatabaseSchema) other).getProcedures() == null;
    else
      equal &= procedures.equals(((DatabaseSchema) other).getProcedures());
    return equal;
  }

  public String getXml()
  {
    StringBuffer info = new StringBuffer();
    info.append("<"+DatabasesXmlTags.ELT_DatabaseStaticSchema+">");
    for(int i = 0; i < procedures.size();i++)
      info.append(((DatabaseProcedure) procedures.get(i)).getXml());
    for (int i = 0; i < tables.size(); i++)
      info.append(((DatabaseTable) tables.get(i)).getXml());
    info.append("</"+DatabasesXmlTags.ELT_DatabaseStaticSchema+">");
    return info.toString();
  }

}

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