/* Copyright 2004 The Apache Software Foundation
*
* 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 org.apache.xmlbeans.impl.schema;
import org.apache.xmlbeans.SchemaIdentityConstraint;
import org.apache.xmlbeans.SchemaTypeSystem;
import org.apache.xmlbeans.SchemaComponent;
import org.apache.xmlbeans.XmlObject;
import org.apache.xmlbeans.impl.common.XPath;
import javax.xml.namespace.QName;
import java.util.Map;
import java.util.Collections;
public class SchemaIdentityConstraintImpl implements SchemaIdentityConstraint
{
private SchemaTypeSystem _typeSystem;
private String _selector;
private String[] _fields;
private SchemaIdentityConstraint.Ref _key;
private QName _name;
private int _type;
private XmlObject _parse;
private Map _nsMap = Collections.EMPTY_MAP;
private String _parseTNS;
private boolean _chameleon;
// Lazily computed paths
private volatile XPath _selectorPath;
private volatile XPath[] _fieldPaths;
public SchemaIdentityConstraintImpl(SchemaTypeSystem sys) {
_typeSystem = sys;
}
public String getSelector() {
return _selector;
}
public Object getSelectorPath() {
XPath p = _selectorPath;
if (p == null) {
try {
buildPaths();
p = _selectorPath;
}
catch (XPath.XPathCompileException e) {
assert false: "Failed to compile xpath. Should be caught by compiler " + e;
return null;
}
}
return p;
}
public void setNSMap(Map nsMap) {
_nsMap = nsMap;
}
public Map getNSMap() {
return Collections.unmodifiableMap(_nsMap);
}
public void setSelector(String selector) {
assert selector != null;
_selector = selector;
}
public void setFields(String[] fields) {
assert fields != null && fields.length > 0;
_fields = fields;
}
public String[] getFields() {
String[] fields = new String[_fields.length];
System.arraycopy(_fields, 0, fields, 0, fields.length);
return fields;
}
public Object getFieldPath(int index) {
XPath[] p = _fieldPaths;
if (p == null) {
try {
buildPaths();
p = _fieldPaths;
}
catch (XPath.XPathCompileException e) {
assert false: "Failed to compile xpath. Should be caught by compiler " + e;
return null;
}
}
return p[index];
}
public void buildPaths() throws XPath.XPathCompileException {
// TODO: Need the namespace map - requires store support
_selectorPath = XPath.compileXPath(_selector, _nsMap);
_fieldPaths = new XPath[_fields.length];
for (int i = 0 ; i < _fieldPaths.length ; i++)
_fieldPaths[i] = XPath.compileXPath(_fields[i], _nsMap);
}
public void setReferencedKey(SchemaIdentityConstraint.Ref key) {
_key = key;
}
public SchemaIdentityConstraint getReferencedKey() {
return _key.get();
}
public void setConstraintCategory(int type) {
assert type >= CC_KEY && type <= CC_UNIQUE;
_type = type;
}
public int getConstraintCategory() {
return _type;
}
public void setName(QName name) {
assert name != null;
_name = name;
}
public QName getName() {
return _name;
}
public int getComponentType() {
return IDENTITY_CONSTRAINT;
}
public SchemaTypeSystem getTypeSystem() {
return _typeSystem;
}
public void setParseContext(XmlObject o, String targetNamespace, boolean chameleon) {
_parse = o;
_parseTNS = targetNamespace;
_chameleon = chameleon;
}
public XmlObject getParseObject() {
return _parse;
}
public String getTargetNamespace() {
return _parseTNS;
}
public String getChameleonNamespace() {
return _chameleon ? _parseTNS : null;
}
/**
* Only applicable to keyrefs. Other types are implicitly resolved.
*/
public boolean isResolved() {
return getConstraintCategory() != CC_KEYREF || _key != null;
}
private SchemaIdentityConstraint.Ref _selfref = new SchemaIdentityConstraint.Ref(this);
public SchemaIdentityConstraint.Ref getRef()
{ return _selfref; }
public SchemaComponent.Ref getComponentRef()
{ return getRef(); }
}