Skip to main content
aboutsummaryrefslogtreecommitdiffstats
blob: 79b1f393dd0e23dbfb79954ea02d28dbdef4b596 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
/*******************************************************************************
 * Copyright (c) 2009, 2015 Oracle. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0, which accompanies this distribution
 * and is available at http://www.eclipse.org/legal/epl-v10.html.
 *
 * Contributors:
 *     Oracle - initial API and implementation
 ******************************************************************************/
package org.eclipse.jpt.jpa.core.internal.context.orm;

import java.util.List;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jpt.jpa.core.MappingKeys;
import org.eclipse.jpt.jpa.core.context.AttributeMapping;
import org.eclipse.jpt.jpa.core.context.RelationshipMapping;
import org.eclipse.jpt.jpa.core.context.SpecifiedRelationshipStrategy;
import org.eclipse.jpt.jpa.core.context.orm.OrmJoinColumnRelationship;
import org.eclipse.jpt.jpa.core.context.orm.OrmJoinTableRelationship;
import org.eclipse.jpt.jpa.core.context.orm.OrmMappedByRelationship;
import org.eclipse.jpt.jpa.core.context.orm.OrmMappingRelationship;
import org.eclipse.jpt.jpa.core.context.orm.OrmOneToManyMapping;
import org.eclipse.jpt.jpa.core.context.orm.OrmSpecifiedJoinColumnRelationshipStrategy;
import org.eclipse.jpt.jpa.core.context.orm.OrmSpecifiedJoinTableRelationshipStrategy;
import org.eclipse.jpt.jpa.core.context.orm.OrmSpecifiedMappedByRelationshipStrategy;
import org.eclipse.jpt.jpa.core.internal.jpa1.context.orm.NullOrmJoinColumnRelationshipStrategy;
import org.eclipse.jpt.jpa.core.jpa2.context.orm.OrmOneToManyRelationship2_0;
import org.eclipse.jpt.jpa.core.resource.orm.XmlOneToMany;
import org.eclipse.wst.validation.internal.provisional.core.IMessage;
import org.eclipse.wst.validation.internal.provisional.core.IReporter;

public class GenericOrmOneToManyRelationship
	extends AbstractOrmMappingRelationship<OrmOneToManyMapping>
	implements OrmOneToManyRelationship2_0
{
	protected final OrmSpecifiedMappedByRelationshipStrategy mappedByStrategy;

	protected final OrmSpecifiedJoinTableRelationshipStrategy joinTableStrategy;

	// JPA 2.0 or EclipseLink
	protected final boolean supportsJoinColumnStrategy;
	protected final OrmSpecifiedJoinColumnRelationshipStrategy joinColumnStrategy;


	public GenericOrmOneToManyRelationship(OrmOneToManyMapping parent, boolean supportsJoinColumnStrategy) {
		super(parent);
		this.mappedByStrategy = this.buildMappedByStrategy();
		this.supportsJoinColumnStrategy = supportsJoinColumnStrategy;
		this.joinColumnStrategy = this.buildJoinColumnStrategy();

		// build join table strategy last since it's dependent on the other strategies
		this.joinTableStrategy = this.buildJoinTableStrategy();

		this.strategy = this.buildStrategy();
	}


	// ********** synchronize/update **********

	@Override
	public void synchronizeWithResourceModel() {
		super.synchronizeWithResourceModel();
		this.mappedByStrategy.synchronizeWithResourceModel();
		this.joinColumnStrategy.synchronizeWithResourceModel();
		this.joinTableStrategy.synchronizeWithResourceModel();
	}

	@Override
	public void update(IProgressMonitor monitor) {
		super.update(monitor);
		this.mappedByStrategy.update(monitor);
		this.joinColumnStrategy.update(monitor);
		this.joinTableStrategy.update(monitor);
	}


	// ********** strategy **********

	@Override
	protected SpecifiedRelationshipStrategy buildStrategy() {
		if (this.mappedByStrategy.getMappedByAttribute() != null) {
			return this.mappedByStrategy;
		}
		if (this.supportsJoinColumnStrategy) {
			if (this.joinColumnStrategy.hasSpecifiedJoinColumns()) {
				return this.joinColumnStrategy;
			}
		}
		return this.joinTableStrategy;
	}


	// ********** mapped by strategy **********

	public OrmSpecifiedMappedByRelationshipStrategy getMappedByStrategy() {
		return this.mappedByStrategy;
	}

	public boolean strategyIsMappedBy() {
		return this.strategy == this.mappedByStrategy;
	}

	public final void setStrategyToMappedBy() {
		this.mappedByStrategy.addStrategy();
		this.joinTableStrategy.removeStrategy();
		this.joinColumnStrategy.removeStrategy();
		this.updateStrategy();
	}

	public boolean mayBeMappedBy(AttributeMapping mapping) {
		String key = mapping.getKey();
		if (key == MappingKeys.MANY_TO_ONE_ATTRIBUTE_MAPPING_KEY) {
			return true;
		}
		if (this.supportsJoinColumnStrategy) {
			return key == MappingKeys.ONE_TO_ONE_ATTRIBUTE_MAPPING_KEY;
		}
		return false;
	}

	protected OrmSpecifiedMappedByRelationshipStrategy buildMappedByStrategy() {
		return new GenericOrmMappedByRelationshipStrategy(this);
	}


	// ********** join table strategy **********

	public OrmSpecifiedJoinTableRelationshipStrategy getJoinTableStrategy() {
		return this.joinTableStrategy;
	}

	public boolean strategyIsJoinTable() {
		return this.strategy == this.joinTableStrategy;
	}

	public final void setStrategyToJoinTable() {
		// join table is default, so no need to add to resource
		this.mappedByStrategy.removeStrategy();
		this.joinColumnStrategy.removeStrategy();
		this.updateStrategy();
	}

	public boolean mayHaveDefaultJoinTable() {
		return (this.mappedByStrategy.getMappedByAttribute() == null) &&
				! this.joinColumnStrategy.hasSpecifiedJoinColumns();
	}

	protected OrmSpecifiedJoinTableRelationshipStrategy buildJoinTableStrategy() {
		return new GenericOrmMappingJoinTableRelationshipStrategy(this);
	}


	// ********** join column strategy **********

	public OrmSpecifiedJoinColumnRelationshipStrategy getJoinColumnStrategy() {
		return this.joinColumnStrategy;
	}

	public boolean strategyIsJoinColumn() {
		return this.strategy == this.joinColumnStrategy;
	}

	public void setStrategyToJoinColumn() {
		this.joinColumnStrategy.addStrategy();
		this.mappedByStrategy.removeStrategy();
		this.joinTableStrategy.removeStrategy();
		this.updateStrategy();
	}

	public boolean mayHaveDefaultJoinColumn() {
		return false;
	}

	protected OrmSpecifiedJoinColumnRelationshipStrategy buildJoinColumnStrategy() {
		return this.supportsJoinColumnStrategy ?
				new GenericOrmMappingJoinColumnRelationshipStrategy(this, true) :  // true = target foreign key
				new NullOrmJoinColumnRelationshipStrategy(this);
	}


	// ********** conversions **********

	public void initializeOn(OrmMappingRelationship newRelationship) {
		newRelationship.initializeFromMappedByRelationship(this);
		newRelationship.initializeFromJoinTableRelationship(this);
		newRelationship.initializeFromJoinColumnRelationship(this);
	}

	@Override
	public void initializeFromMappedByRelationship(OrmMappedByRelationship oldRelationship) {
		super.initializeFromMappedByRelationship(oldRelationship);
		this.mappedByStrategy.initializeFrom(oldRelationship.getMappedByStrategy());
	}

	@Override
	public void initializeFromJoinTableRelationship(OrmJoinTableRelationship oldRelationship) {
		super.initializeFromJoinTableRelationship(oldRelationship);
		this.joinTableStrategy.initializeFrom(oldRelationship.getJoinTableStrategy());
	}

	@Override
	public void initializeFromJoinColumnRelationship(OrmJoinColumnRelationship oldRelationship) {
		super.initializeFromJoinColumnRelationship(oldRelationship);
		this.joinColumnStrategy.initializeFrom(oldRelationship.getJoinColumnStrategy());
	}


	// ********** misc **********

	@Override
	protected XmlOneToMany getXmlMapping() {
		return (XmlOneToMany) super.getXmlMapping();
	}

	public XmlOneToMany getXmlContainer() {
		return this.getXmlMapping();
	}

	public boolean isOwner() {
		return this.mappedByStrategy.getMappedByAttribute() == null;
	}

	public boolean isOwnedBy(RelationshipMapping mapping) {
		return this.mappedByStrategy.relationshipIsOwnedBy(mapping);
	}

	@Override
	public boolean isTargetForeignKey() {
		return this.joinColumnStrategy.isTargetForeignKey();
	}


	// ********** validation **********

	@Override
	public void validate(List<IMessage> messages, IReporter reporter) {
		super.validate(messages, reporter);
		this.mappedByStrategy.validate(messages, reporter);
		this.joinTableStrategy.validate(messages, reporter);
		this.joinColumnStrategy.validate(messages, reporter);
	}

	// ********** completion proposals **********

	@Override
	public Iterable<String> getCompletionProposals(int pos) {
		Iterable<String> result = super.getCompletionProposals(pos);
		if (result != null) {
			return result;
		}
		result = this.mappedByStrategy.getCompletionProposals(pos);
		if (result != null) {
			return result;
		}
		result = this.joinTableStrategy.getCompletionProposals(pos);
		if (result != null) {
			return result;
		}
		result = this.joinColumnStrategy.getCompletionProposals(pos);
		if (result != null) {
			return result;
		}
		return null;
	}
}

Back to the top