/**
* Returns the columns list which is not nullable
*
* @param table
* @return
*/
public static List getNotNullableColumns(BaseTable table) {
if (table == null || table.getColumns() == null) {
return new ArrayList(0);
}
List notNullableColumns = new ArrayList();
Iterator iter = table.getColumns().iterator();
while (iter.hasNext()) {
Column col = (Column) iter.next();
if (!col.isNullable()) {
notNullableColumns.add(col);
}
}
return notNullableColumns;
}
public static void removeColumnFromRefConstraints(BaseTable table, Column column) {
Iterator iter = table.getConstraints().iterator();
while (iter.hasNext()) {
Constraint constraint = (Constraint) iter.next();
if (constraint instanceof ReferenceConstraint) {
ReferenceConstraint refConstraint = (ReferenceConstraint) constraint;
if (refConstraint.getMembers().contains(column)) {
refConstraint.getMembers().remove(column);
}
}
}
}
/**
* Returns all the foreign keys which reference the given column
*
* @param table
* @param column
* @return
*/
public static List getMatchedColumnForeignKeys(BaseTable table, Column column) {
List constraints = new ArrayList();
Iterator iter = table.getForeignKeys().iterator();
while (iter.hasNext()) {
ForeignKey fk = (ForeignKey) iter.next();
List members = fk.getMembers();
if (members.size() < 1) {
continue;
}
if (members.contains(column)) {
constraints.add(fk);
}
}
return constraints;
}
public static List getMatchedColumnCheckConstraint(BaseTable table, Column column) {
List constraints = new ArrayList();
Iterator iter = table.getConstraints().iterator();
while (iter.hasNext()) {
Constraint obj = (Constraint) iter.next();
if (obj instanceof SybaseASABaseColumnCheckConstraint) {
SybaseASABaseColumnCheckConstraint columnCk = (SybaseASABaseColumnCheckConstraint) obj;
if (columnCk.getColumn() == column) {
constraints.add(obj);
}
}
}
return constraints;
}
/**
* Returns all the unique constraints of the given table which only reference the given column
*
* @param table the base table
* @param column the referencing column
* @return
*/
public static List getMatchedColumnUniqueConstraint(BaseTable table, Column column) {
List constraints = new ArrayList();
Iterator iter = table.getUniqueConstraints().iterator();
while (iter.hasNext()) {
UniqueConstraint unique = (UniqueConstraint) iter.next();
List members = unique.getMembers();
if (members.size() != 1) {
continue;
}
if (members.get(0).equals(column)) {
constraints.add(unique);
}
}
return constraints;
}
/**
* Checks if the given column is referenced in one of the reference constraints of the given table
*
* @param table
* @param column
* @return
*/
public static boolean isReferencedColumn(BaseTable table, Column column) {
Iterator iter = table.getConstraints().iterator();
while (iter.hasNext()) {
Constraint constraint = (Constraint) iter.next();
if (constraint instanceof ReferenceConstraint) {
ReferenceConstraint refConstraint = (ReferenceConstraint) constraint;
if (refConstraint.getMembers().contains(column)) {
return true;
}
}
if (constraint instanceof SybaseASABaseColumnCheckConstraint) {
SybaseASABaseColumnCheckConstraint columnCk =
(SybaseASABaseColumnCheckConstraint) constraint;
if (columnCk.getColumn() == column) {
return true;
}
}
}
return false;
}
public String createTable(BaseTable table, boolean quoteIdentifiers, boolean qualifyNames) {
StringBuffer statement = new StringBuffer();
boolean isTemp = table instanceof TemporaryTable;
statement.append(CREATE).append(SPACE);
if (isTemp) {
if (((TemporaryTable) table).isLocal()) {
statement.append(LOCAL).append(SPACE);
} else {
statement.append(GLOBAL).append(SPACE);
}
statement.append(TEMPORARY).append(SPACE);
}
statement
.append(TABLE)
.append(SPACE)
.append(getName(table, quoteIdentifiers, qualifyNames))
.append(SPACE);
statement.append(LEFT_PARENTHESIS).append(NEWLINE);
List items = new ArrayList();
items.addAll(table.getColumns());
items.addAll(getTableConstraints(table));
Iterator it = items.iterator();
boolean first = true;
while (it.hasNext()) {
Object item = it.next();
String clause;
if (item instanceof Column) {
clause = getColumnString((Column) item, quoteIdentifiers);
} else if (item instanceof CheckConstraint) {
clause = getCheckConstraintClause((CheckConstraint) item, quoteIdentifiers);
} else if (item instanceof UniqueConstraint) {
clause = getUniqueConstraintClause((UniqueConstraint) item, quoteIdentifiers);
} else {
continue;
}
if (!first) {
statement.append(COMMA);
statement.append(NEWLINE);
} else {
first = false;
}
statement.append(TAB).append(clause);
}
statement.append(NEWLINE).append(RIGHT_PARENTHESIS);
if (isTemp) {
statement.append(NEWLINE).append(TAB).append(ON_COMMIT).append(SPACE);
if (((TemporaryTable) table).isDeleteOnCommit()) {
statement.append(DELETE).append(SPACE);
} else {
statement.append(PRESERVE).append(SPACE);
}
statement.append(ROWS);
}
return statement.append(NEWLINE).toString();
}
