@Override
public String sqlDropString(Dialect dialect, String defaultCatalog, String defaultSchema) {
return dialect.getUniqueDelegate().dropUniquesOnAlter(this, defaultCatalog, defaultSchema);
}
public String sqlCreateString(
Dialect dialect, Mapping p, String defaultCatalog, String defaultSchema) {
StringBuilder buf =
new StringBuilder(
hasPrimaryKey()
? dialect.getCreateTableString()
: dialect.getCreateMultisetTableString())
.append(' ')
.append(getQualifiedName(dialect, defaultCatalog, defaultSchema))
.append(" (");
boolean identityColumn =
idValue != null && idValue.isIdentityColumn(p.getIdentifierGeneratorFactory(), dialect);
// Try to find out the name of the primary key to create it as identity if the IdentityGenerator
// is used
String pkname = null;
if (hasPrimaryKey() && identityColumn) {
pkname = ((Column) getPrimaryKey().getColumnIterator().next()).getQuotedName(dialect);
}
Iterator iter = getColumnIterator();
while (iter.hasNext()) {
Column col = (Column) iter.next();
buf.append(col.getQuotedName(dialect)).append(' ');
if (identityColumn && col.getQuotedName(dialect).equals(pkname)) {
// to support dialects that have their own identity data type
if (dialect.getIdentityColumnSupport().hasDataTypeInIdentityColumn()) {
buf.append(col.getSqlType(dialect, p));
}
buf.append(' ')
.append(
dialect.getIdentityColumnSupport().getIdentityColumnString(col.getSqlTypeCode(p)));
} else {
buf.append(col.getSqlType(dialect, p));
String defaultValue = col.getDefaultValue();
if (defaultValue != null) {
buf.append(" default ").append(defaultValue);
}
if (col.isNullable()) {
buf.append(dialect.getNullColumnString());
} else {
buf.append(" not null");
}
}
if (col.isUnique()) {
String keyName = Constraint.generateName("UK_", this, col);
UniqueKey uk = getOrCreateUniqueKey(keyName);
uk.addColumn(col);
buf.append(dialect.getUniqueDelegate().getColumnDefinitionUniquenessFragment(col));
}
if (col.hasCheckConstraint() && dialect.supportsColumnCheck()) {
buf.append(" check (").append(col.getCheckConstraint()).append(")");
}
String columnComment = col.getComment();
if (columnComment != null) {
buf.append(dialect.getColumnComment(columnComment));
}
if (iter.hasNext()) {
buf.append(", ");
}
}
if (hasPrimaryKey()) {
buf.append(", ").append(getPrimaryKey().sqlConstraintString(dialect));
}
buf.append(dialect.getUniqueDelegate().getTableCreationUniqueConstraintsFragment(this));
if (dialect.supportsTableCheck()) {
for (String checkConstraint : checkConstraints) {
buf.append(", check (").append(checkConstraint).append(')');
}
}
buf.append(')');
if (comment != null) {
buf.append(dialect.getTableComment(comment));
}
return buf.append(dialect.getTableTypeString()).toString();
}
@Override
public String sqlCreateString(
Dialect dialect, Mapping p, String defaultCatalog, String defaultSchema) {
return dialect.getUniqueDelegate().applyUniquesOnAlter(this, defaultCatalog, defaultSchema);
}
public Iterator sqlAlterStrings(
Dialect dialect,
Mapping p,
TableInformation tableInfo,
String defaultCatalog,
String defaultSchema)
throws HibernateException {
StringBuilder root =
new StringBuilder("alter table ")
.append(getQualifiedName(dialect, defaultCatalog, defaultSchema))
.append(' ')
.append(dialect.getAddColumnString());
Iterator iter = getColumnIterator();
List results = new ArrayList();
while (iter.hasNext()) {
final Column column = (Column) iter.next();
final ColumnInformation columnInfo =
tableInfo.getColumn(Identifier.toIdentifier(column.getName(), column.isQuoted()));
if (columnInfo == null) {
// the column doesnt exist at all.
StringBuilder alter =
new StringBuilder(root.toString())
.append(' ')
.append(column.getQuotedName(dialect))
.append(' ')
.append(column.getSqlType(dialect, p));
String defaultValue = column.getDefaultValue();
if (defaultValue != null) {
alter.append(" default ").append(defaultValue);
}
if (column.isNullable()) {
alter.append(dialect.getNullColumnString());
} else {
alter.append(" not null");
}
if (column.isUnique()) {
String keyName = Constraint.generateName("UK_", this, column);
UniqueKey uk = getOrCreateUniqueKey(keyName);
uk.addColumn(column);
alter.append(dialect.getUniqueDelegate().getColumnDefinitionUniquenessFragment(column));
}
if (column.hasCheckConstraint() && dialect.supportsColumnCheck()) {
alter.append(" check(").append(column.getCheckConstraint()).append(")");
}
String columnComment = column.getComment();
if (columnComment != null) {
alter.append(dialect.getColumnComment(columnComment));
}
alter.append(dialect.getAddColumnSuffixString());
results.add(alter.toString());
}
}
if (results.isEmpty()) {
Logger.getLogger(SchemaUpdate.class)
.debugf("No alter strings for table : %s", getQuotedName());
}
return results.iterator();
}