From 3f5eace0de56e0514b706a1099acceeeff122d86 Mon Sep 17 00:00:00 2001
From: Brian Vosburgh
Date: Fri, 15 Jul 2016 11:42:42 -0400
Subject: add return value to
 BasePluggablePropertyValueModel.Adapter.engageModel()

---
 .../model/value/BaseCompoundPropertyValueModelAdapter.java  | 13 +++++++------
 .../model/value/BasePluggablePropertyValueModel.java        |  8 ++++----
 .../BasePropertyPluggablePropertyValueModelAdapter.java     |  4 ++--
 .../model/value/BufferedPropertyValueModelAdapter.java      |  8 ++++----
 .../value/CollectionPluggablePropertyValueModelAdapter.java |  4 ++--
 .../model/value/CompositePropertyValueModelAdapter.java     |  4 ++--
 .../model/value/ListCompositePropertyValueModelAdapter.java |  4 ++--
 .../model/value/ListPluggablePropertyValueModelAdapter.java |  4 ++--
 .../value/PluggableModifiablePropertyValueModelAdapter.java |  4 ++--
 .../internal/model/value/PropertyValueModelToolsTests.java  |  4 ++--
 10 files changed, 29 insertions(+), 28 deletions(-)

(limited to 'common')

diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/BaseCompoundPropertyValueModelAdapter.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/BaseCompoundPropertyValueModelAdapter.java
index 8766552312..94487a307e 100644
--- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/BaseCompoundPropertyValueModelAdapter.java
+++ b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/BaseCompoundPropertyValueModelAdapter.java
@@ -111,17 +111,18 @@ public abstract class BaseCompoundPropertyValueModelAdapter<V, IM extends Proper
 		return this.value;
 	}
 
-	public void engageModel() {
+	public V engageModel() {
 		this.outerModel.addPropertyChangeListener(PropertyValueModel.VALUE, this.outerValueListener);
 		this.innerModel = this.outerModel.getValue();
-		this.engageInnerModel();
+		return this.engageInnerModel();
 	}
 
-	private void engageInnerModel() {
-		if (this.innerModel != null) {
-			this.innerModel.addPropertyChangeListener(PropertyValueModel.VALUE, this.innerValueListener);
-			this.value = this.innerModel.getValue();
+	private V engageInnerModel() {
+		if (this.innerModel == null) {
+			return null;
 		}
+		this.innerModel.addPropertyChangeListener(PropertyValueModel.VALUE, this.innerValueListener);
+		return this.value = this.innerModel.getValue();
 	}
 
 	public void disengageModel() {
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/BasePluggablePropertyValueModel.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/BasePluggablePropertyValueModel.java
index 6b94a430d8..180a7d8692 100644
--- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/BasePluggablePropertyValueModel.java
+++ b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/BasePluggablePropertyValueModel.java
@@ -138,10 +138,9 @@ public abstract class BasePluggablePropertyValueModel<V, A extends BasePluggable
 	 * Start listening to the underlying model and build the value.
 	 */
 	protected void engageModel() {
-		this.adapter.engageModel();
 		// sync our value *after* we start listening to the model,
 		// since the model's value might change when a listener is added
-		this.value = this.adapter.getValue();
+		this.value = this.adapter.engageModel();
 	}
 
 	/**
@@ -205,9 +204,10 @@ public abstract class BasePluggablePropertyValueModel<V, A extends BasePluggable
 		AV getValue();
 
 		/**
-		 * Start listening to the adapted model.
+		 * Start listening to the adapted model
+		 * and return its current value.
 		 */
-		void engageModel();
+		AV engageModel();
 
 		/**
 		 * Stop listening to the adapted model.
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/BasePropertyPluggablePropertyValueModelAdapter.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/BasePropertyPluggablePropertyValueModelAdapter.java
index 32a36fb358..955c987aad 100644
--- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/BasePropertyPluggablePropertyValueModelAdapter.java
+++ b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/BasePropertyPluggablePropertyValueModelAdapter.java
@@ -74,10 +74,10 @@ public abstract class BasePropertyPluggablePropertyValueModelAdapter<V1, V2, M e
 		return this.value;
 	}
 
-	public void engageModel() {
+	public V2 engageModel() {
 		this.propertyModel.addPropertyChangeListener(PropertyValueModel.VALUE, this);
 		this.propertyModelValue = this.propertyModel.getValue();
-		this.value = this.buildValue();
+		return this.value = this.buildValue();
 	}
 
 	public void disengageModel() {
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/BufferedPropertyValueModelAdapter.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/BufferedPropertyValueModelAdapter.java
index 8ac19c8530..f8f5baa5a6 100644
--- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/BufferedPropertyValueModelAdapter.java
+++ b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/BufferedPropertyValueModelAdapter.java
@@ -149,16 +149,16 @@ public class BufferedPropertyValueModelAdapter<V>
 		}
 	}
 
-	public void engageModel() {
-		this.wrappedValueModel.addPropertyChangeListener(PropertyValueModel.VALUE, this);
-		this.wrappedValue = this.wrappedValueModel.getValue();
+	public V engageModel() {
 		this.trigger.addListener(this.triggerListener);
+		this.wrappedValueModel.addPropertyChangeListener(PropertyValueModel.VALUE, this);
+		return this.wrappedValue = this.wrappedValueModel.getValue();
 	}
 
 	public void disengageModel() {
+		this.trigger.removeListener(this.triggerListener);
 		this.setBuffering(false);
 		this.bufferedValue = null;
-		this.trigger.removeListener(this.triggerListener);
 		this.wrappedValue = null;
 		this.wrappedValueModel.removePropertyChangeListener(PropertyValueModel.VALUE, this);
 	}
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/CollectionPluggablePropertyValueModelAdapter.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/CollectionPluggablePropertyValueModelAdapter.java
index 71e2870afb..ab84fbcf44 100644
--- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/CollectionPluggablePropertyValueModelAdapter.java
+++ b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/CollectionPluggablePropertyValueModelAdapter.java
@@ -85,10 +85,10 @@ public final class CollectionPluggablePropertyValueModelAdapter<E, V>
 		return this.value;
 	}
 
-	public void engageModel() {
+	public V engageModel() {
 		this.collectionModel.addCollectionChangeListener(CollectionValueModel.VALUES, this);
 		CollectionTools.addAll(this.collection, this.collectionModel);
-		this.value = this.buildValue();
+		return this.value = this.buildValue();
 	}
 
 	public void disengageModel() {
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/CompositePropertyValueModelAdapter.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/CompositePropertyValueModelAdapter.java
index d37ce05cbc..e54aabccea 100644
--- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/CompositePropertyValueModelAdapter.java
+++ b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/CompositePropertyValueModelAdapter.java
@@ -112,10 +112,10 @@ public final class CompositePropertyValueModelAdapter<E, V>
 		return this.value;
 	}
 
-	public void engageModel() {
+	public V engageModel() {
 		this.collectionModel.addCollectionChangeListener(CollectionValueModel.VALUES, this);
 		this.addComponentPVMs(this.collectionModel);
-		this.value = this.buildValue();
+		return this.value = this.buildValue();
 	}
 
 	public void disengageModel() {
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/ListCompositePropertyValueModelAdapter.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/ListCompositePropertyValueModelAdapter.java
index f73480694f..7f17c43d79 100644
--- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/ListCompositePropertyValueModelAdapter.java
+++ b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/ListCompositePropertyValueModelAdapter.java
@@ -108,10 +108,10 @@ public final class ListCompositePropertyValueModelAdapter<E, V>
 		return this.value;
 	}
 
-	public void engageModel() {
+	public V engageModel() {
 		this.listModel.addListChangeListener(ListValueModel.LIST_VALUES, this);
 		this.addComponentPVMs(0, this.listModel);
-		this.value = this.buildValue();
+		return this.value = this.buildValue();
 	}
 
 	public void disengageModel() {
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/ListPluggablePropertyValueModelAdapter.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/ListPluggablePropertyValueModelAdapter.java
index 5cc917eb2f..5aded2744b 100644
--- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/ListPluggablePropertyValueModelAdapter.java
+++ b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/ListPluggablePropertyValueModelAdapter.java
@@ -89,10 +89,10 @@ public final class ListPluggablePropertyValueModelAdapter<E, V>
 		return this.value;
 	}
 
-	public void engageModel() {
+	public V engageModel() {
 		this.listModel.addListChangeListener(ListValueModel.LIST_VALUES, this);
 		ListTools.addAll(this.list, 0, this.listModel);
-		this.value = this.buildValue();
+		return this.value = this.buildValue();
 	}
 
 	public void disengageModel() {
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/PluggableModifiablePropertyValueModelAdapter.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/PluggableModifiablePropertyValueModelAdapter.java
index 98436a995a..eac83e2bf9 100644
--- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/PluggableModifiablePropertyValueModelAdapter.java
+++ b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/PluggableModifiablePropertyValueModelAdapter.java
@@ -52,8 +52,8 @@ public class PluggableModifiablePropertyValueModelAdapter<V>
 		this.closure.execute(value);
 	}
 
-	public void engageModel() {
-		this.adapter.engageModel();
+	public V engageModel() {
+		return this.adapter.engageModel();
 	}
 
 	public void disengageModel() {
diff --git a/common/tests/org.eclipse.jpt.common.utility.tests/src/org/eclipse/jpt/common/utility/tests/internal/model/value/PropertyValueModelToolsTests.java b/common/tests/org.eclipse.jpt.common.utility.tests/src/org/eclipse/jpt/common/utility/tests/internal/model/value/PropertyValueModelToolsTests.java
index ce91c5575e..57db49690c 100644
--- a/common/tests/org.eclipse.jpt.common.utility.tests/src/org/eclipse/jpt/common/utility/tests/internal/model/value/PropertyValueModelToolsTests.java
+++ b/common/tests/org.eclipse.jpt.common.utility.tests/src/org/eclipse/jpt/common/utility/tests/internal/model/value/PropertyValueModelToolsTests.java
@@ -1168,10 +1168,10 @@ public class PropertyValueModelToolsTests
 			this.value = null;
 		}
 
-		public void engageModel() {
+		public String engageModel() {
 			this.stringModel.addPropertyChangeListener(PropertyValueModel.VALUE, this.stringListener);
 			String v = this.stringModel.getValue();
-			this.value = v.substring(v.length() / 2);
+			return this.value = v.substring(v.length() / 2);
 		}
 
 		public String getValue() {
-- 
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