001: /*--
002:
003: Copyright (C) 2002-2005 Adrian Price.
004: All rights reserved.
005:
006: Redistribution and use in source and binary forms, with or without
007: modification, are permitted provided that the following conditions
008: are met:
009:
010: 1. Redistributions of source code must retain the above copyright
011: notice, this list of conditions, and the following disclaimer.
012:
013: 2. Redistributions in binary form must reproduce the above copyright
014: notice, this list of conditions, and the disclaimer that follows
015: these conditions in the documentation and/or other materials
016: provided with the distribution.
017:
018: 3. The names "OBE" and "Open Business Engine" must not be used to
019: endorse or promote products derived from this software without prior
020: written permission. For written permission, please contact
021: adrianprice@sourceforge.net.
022:
023: 4. Products derived from this software may not be called "OBE" or
024: "Open Business Engine", nor may "OBE" or "Open Business Engine"
025: appear in their name, without prior written permission from
026: Adrian Price (adrianprice@users.sourceforge.net).
027:
028: THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
029: WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
030: OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
031: DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT,
032: INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
033: (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
034: SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
035: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
036: STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
037: IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
038: POSSIBILITY OF SUCH DAMAGE.
039:
040: For more information on OBE, please see
041: <http://obe.sourceforge.net/>.
042:
043: */
044:
045: package org.obe.engine.persistence.memory;
046:
047: import org.obe.client.api.repository.ObjectAlreadyExistsException;
048: import org.obe.client.api.repository.ObjectNotFoundException;
049: import org.obe.client.api.repository.RepositoryException;
050: import org.obe.spi.model.AbstractSystemAttribute;
051: import org.obe.spi.model.AttributeInstance;
052: import org.obe.spi.model.AttributedEntity;
053:
054: import java.beans.PropertyDescriptor;
055: import java.io.Serializable;
056: import java.util.HashMap;
057: import java.util.Map;
058:
059: /**
060: * An abstract base for entities that have an associated attribute collection.
061: *
062: * @author Adrian Price
063: */
064: public abstract class BasicAttributedEntity implements
065: AttributedEntity, Serializable {
066:
067: private static final long serialVersionUID = 1013877479192851431L;
068: private final Map _attrs = new HashMap();
069: protected final String _processDefinitionId;
070: protected final String _processInstanceId;
071: protected final String _entityId;
072:
073: private class SystemAttribute extends AbstractSystemAttribute {
074: SystemAttribute(PropertyDescriptor propDesc) {
075: super (propDesc);
076: }
077:
078: public AttributedEntity getOwner() {
079: return BasicAttributedEntity.this ;
080: }
081: }
082:
083: protected BasicAttributedEntity(PropertyDescriptor[] propDescs,
084: String processDefinitionId, String processInstanceId,
085: String entityId) {
086:
087: for (int i = 0; i < propDescs.length; i++) {
088: PropertyDescriptor propDesc = propDescs[i];
089: _attrs.put(propDesc.getName(),
090: new SystemAttribute(propDesc));
091: }
092: _processDefinitionId = processDefinitionId;
093: _processInstanceId = processInstanceId;
094: _entityId = entityId;
095: }
096:
097: public final String getEntityId() {
098: return _entityId;
099: }
100:
101: public final String getProcessDefinitionId() {
102: return _processDefinitionId;
103: }
104:
105: protected abstract int getType();
106:
107: public final String getProcessInstanceId() {
108: return _processInstanceId;
109: }
110:
111: public AttributeInstance getAttributeInstance(String attributeName)
112: throws RepositoryException {
113:
114: AttributeInstance attr = (AttributeInstance) _attrs
115: .get(attributeName);
116: if (attr == null)
117: throw new ObjectNotFoundException(attributeName);
118: return attr;
119: }
120:
121: public Map getAttributeInstances() throws RepositoryException {
122: return _attrs;
123: }
124:
125: public void addAttributeInstance(AttributeInstance attr)
126: throws RepositoryException {
127:
128: String attrName = attr.getName();
129: if (_attrs.containsKey(attrName))
130: throw new ObjectAlreadyExistsException(attrName);
131:
132: _attrs.put(attrName, attr);
133: }
134:
135: public int hashCode() {
136: return Integer.parseInt(_entityId);
137: }
138:
139: public boolean equals(Object obj) {
140: return this == obj
141: || obj != null
142: && getClass() == obj.getClass()
143: && _entityId.equals(((AttributedEntity) obj)
144: .getEntityId());
145: }
146: }
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