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/*
* Copyright (C) 2012 The Android Open Source Project
*
* 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.motorola.studio.android.db.wizards.model;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import com.motorola.studio.android.codeutils.i18n.CodeUtilsNLS;
/**
* An abstraction of a database table.
* */
public class Table
{
private String tableName = null;
private final List<Field> fields = new ArrayList<Field>();
@Override
public String toString()
{
String query = "("; //$NON-NLS-1$
String primaryKey = " , PRIMARY KEY ("; //$NON-NLS-1$
boolean hasPrimary = false;
Iterator<Field> it = fields.iterator();
Field fie;
while (it.hasNext())
{
fie = it.next();
query +=
fie.getName()
+ " " //$NON-NLS-1$
+ fie.getType()
+ " " //$NON-NLS-1$
+ ((!(fie.getDefaultValue().equals("") || fie.isPrimary())) //$NON-NLS-1$
? " default \'" : "") //$NON-NLS-1$ //$NON-NLS-2$
+ fie.getDefaultValue()
+ ((!(fie.getDefaultValue().equals("") || fie.isPrimary())) ? "\' " //$NON-NLS-1$ //$NON-NLS-2$
: ""); //$NON-NLS-1$
if (fie.isPrimary())
{
hasPrimary = true;
primaryKey += fie.getName() + fie.getKeyBehaviourQuery() + " )"; //$NON-NLS-1$
}
if (it.hasNext())
{
query += " , "; //$NON-NLS-1$
}
}
query += (hasPrimary ? primaryKey : "") + " )"; //$NON-NLS-1$ //$NON-NLS-2$
return query;
}
public List<Field> getFields()
{
return fields;
}
public void setFields(List<Field> fields)
{
this.fields.clear();
if (fields != null)
{
for (Field field : fields)
{
this.fields.add(field);
}
}
}
/**
* Add {@code field} to the table.
* */
public void addField(Field field)
{
fields.add(field);
}
/**
* Remove {@code field} from the table.
* */
public void removeField(Field obj)
{
fields.remove(obj);
}
/**
* @return If this table has some error in its fields, like unnamed columns, a string describing the error is returned.
* */
public String getErrorMessage()
{
Iterator<Field> it = fields.iterator();
String msg = null;
while (it.hasNext() && (msg == null))
{
Field field = it.next();
msg = field.getErrorMessage();
if ((msg == null) && field.getName().trim().contains(" ")) //$NON-NLS-1$
{
msg = CodeUtilsNLS.Table_ErrorUnamedColumns;
}
else if (msg == null)
{
Iterator<Field> iterator = fields.iterator();
while (iterator.hasNext() && (msg == null))
{
Field testField = iterator.next();
if (field != testField)
{
if (field.getName().equalsIgnoreCase(testField.getName()))
{
msg = CodeUtilsNLS.Table_ErrorConflictingNames + field.getName() + ", " //$NON-NLS-2$
+ testField.getName();
}
else if (field.isPrimary() && testField.isPrimary())
{
msg =
CodeUtilsNLS.Table_ErrorMoreThanOnePrimaryKey + field.getName()
+ ", " + testField.getName(); //$NON-NLS-1$
}
}
}
}
}
return msg;
}
/**
* Validates the name to be different from SQLite keywords.
* Reference: http://www.sqlite.org/lang_keywords.html
*
* @param name
* The table name
* @return True is a valid table name, false otherwise
*/
public static boolean validateName(String name)
{
boolean isValid = true;
String[] keywords =
{
"ABORT", "ACTION", "ADD", "AFTER", "ALL", "ALTER", "ANALYZE", "AND", "AS",
"ASC", "ATTACH", "AUTOINCREMENT", "BEFORE", "BEGIN", "BETWEEN", "BY",
"CASCADE", "CASE", "CAST", "CHECK", "COLLATE", "COLUMN", "COMMIT",
"CONFLICT", "CONSTRAINT", "CREATE", "CROSS", "CURRENT_DATE",
"CURRENT_TIME", "CURRENT_TIMESTAMP", "DATABASE", "DEFAULT", "DEFERRABLE",
"DEFERRED", "DELETE", "DESC", "DETACH", "DISTINCT", "DROP", "EACH", "ELSE",
"END", "ESCAPE", "EXCEPT", "EXCLUSIVE", "EXISTS", "EXPLAIN", "FAIL", "FOR",
"FOREIGN", "FROM", "FULL", "GLOB", "GROUP", "HAVING", "IF", "IGNORE",
"IMMEDIATE", "IN", "INDEX", "INDEXED", "INITIALLY", "INNER", "INSERT",
"INSTEAD", "INTERSECT", "INTO", "IS", "ISNULL", "JOIN", "KEY", "LEFT",
"LIKE", "LIMIT", "MATCH", "NATURAL", "NO", "NOT", "NOTNULL", "NULL", "OF",
"OFFSET", "ON", "OR", "ORDER", "OUTER", "PLAN", "PRAGMA", "PRIMARY",
"QUERY", "RAISE", "REFERENCES", "REGEXP", "REINDEX", "RELEASE", "RENAME",
"REPLACE", "RESTRICT", "RIGHT", "ROLLBACK", "ROW", "SAVEPOINT", "SELECT",
"SET", "TABLE", "TEMP", "TEMPORARY", "THEN", "TO", "TRANSACTION",
"TRIGGER", "UNION", "UNIQUE", "UPDATE", "USING", "VACUUM", "VALUES",
"VIEW", "VIRTUAL", "WHEN", "WHERE"
};
for (String keyword : keywords)
{
// Found. It is a keyword
if (keyword.toLowerCase().compareTo(name.toLowerCase()) == 0)
{
isValid = false;
}
}
return isValid;
}
/**
* @return the tableName
*/
public String getTableName()
{
return tableName;
}
/**
* @param tableName the tableName to set
*/
public void setTableName(String tableName)
{
this.tableName = tableName == null ? null : tableName.trim();
}
}
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