org.objectstyle.cayenne.dba.firebird.FirebirdAdapter Maven / Gradle / Ivy
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*
* The ObjectStyle Group Software License, version 1.1
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* Copyright (c) 2002-2005, Andrei (Andrus) Adamchik and individual authors
* of the software. All rights reserved.
*
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* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
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* distribution.
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* must include the following acknowlegement:
* "This product includes software developed by independent contributors
* and hosted on ObjectStyle Group web site (http://objectstyle.org/)."
* Alternately, this acknowlegement may appear in the software itself,
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* "andrus at objectstyle dot org".
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* 5. Products derived from this software may not be called "ObjectStyle"
* or "Cayenne", nor may "ObjectStyle" or "Cayenne" appear in their
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* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals and hosted on ObjectStyle Group web site. For more
* information on the ObjectStyle Group, please see
*
* test-firebird.cayenne.adapter = org.objectstyle.cayenne.dba.firebird.FirebirdAdapter
* test-firebird.jdbc.username = sysdba
* test-firebird.jdbc.password = masterkey
* test-firebird.jdbc.url = jdbc:firebirdsql:[host[/port]/]
* test-firebird.jdbc.driver = org.firebirdsql.jdbc.FBDriver
*
*
* @author Heiko Wenzel
*/
public class FirebirdAdapter extends JdbcAdapter {
public FirebirdAdapter() {
super();
}
public String createTable(DbEntity ent) {
if (ent instanceof DerivedDbEntity) {
throw new CayenneRuntimeException(
"Can't create table for derived DbEntity '" + ent.getName() + "'.");
}
StringBuffer buf = new StringBuffer();
buf.append("CREATE TABLE ").append(ent.getFullyQualifiedName()).append(" (");
// columns
Iterator it = ent.getAttributes().iterator();
boolean first = true;
while (it.hasNext()) {
if (first) {
first = false;
}
else {
buf.append(", ");
}
DbAttribute at = (DbAttribute) it.next();
// attribute may not be fully valid, do a simple check
if (at.getType() == TypesMapping.NOT_DEFINED) {
throw new CayenneRuntimeException(
"Undefined type for attribute '"
+ ent.getFullyQualifiedName()
+ "."
+ at.getName()
+ "'.");
}
String[] types = externalTypesForJdbcType(at.getType());
if (types == null || types.length == 0) {
throw new CayenneRuntimeException(
"Undefined type for attribute '"
+ ent.getFullyQualifiedName()
+ "."
+ at.getName()
+ "': "
+ at.getType());
}
String type = types[0];
buf.append(at.getName()).append(' ').append(type);
// append size and precision (if applicable)
if (typeSupportsLength(at.getType())) {
int len = at.getMaxLength();
int prec = TypesMapping.isDecimal(at.getType()) ? at.getPrecision() : -1;
if (type.compareTo("double precision") == 0) // double precision returns with len = 15
len = 0;
// sanity check
if (prec > len) {
prec = -1;
}
if (len > 0) {
buf.append('(').append(len);
if (prec >= 0) {
buf.append(", ").append(prec);
}
buf.append(')');
}
}
if (at.isMandatory()) {
buf.append(" NOT NULL");
}
}
// primary key clause
Iterator pkit = ent.getPrimaryKey().iterator();
if (pkit.hasNext()) {
if (first)
first = false;
else
buf.append(", ");
buf.append("PRIMARY KEY (");
boolean firstPk = true;
while (pkit.hasNext()) {
if (firstPk)
firstPk = false;
else
buf.append(", ");
DbAttribute at = (DbAttribute) pkit.next();
buf.append(at.getName());
}
buf.append(')');
}
buf.append(");"); // added ; and so I can execute the DDL Script at once
return buf.toString();
}
private boolean typeSupportsLength(int type) {
// "bytea" type does not support length
String[] externalTypes = externalTypesForJdbcType(type);
if (externalTypes != null && externalTypes.length > 0) {
for (int i = 0; i < externalTypes.length; i++) {
if ("blob sub_type 0".equalsIgnoreCase(externalTypes[i])) {
return false;
}
}
}
return TypesMapping.supportsLength(type);
}
/**
* Returns a SQL string that can be used to create
* a foreign key constraint for the relationship.
*/
public String createFkConstraint(DbRelationship rel) {
// added ; and so I can execute the DDL Script at once
return super.createFkConstraint(rel) + ";";
}
public String dropTable(DbEntity ent) {
// added ; and so I can execute the DDL Script at once
return super.dropTable(ent) + ";";
}
protected void configureExtendedTypes(ExtendedTypeMap map) {
super.configureExtendedTypes(map);
map.registerType(new CharType(true, false));
}
/**
* @see JdbcAdapter#createPkGenerator()
*/
protected PkGenerator createPkGenerator() {
return new FirebirdPkGenerator();
}
// TODO: Does Firebird support something like RTRIM?... It really needs it.
/* public QualifierTranslator getQualifierTranslator(QueryAssembler queryAssembler) {
return new TrimmingQualifierTranslator(queryAssembler, "");
} */
}
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