Author: hlship
Date: Sun Feb 11 10:26:08 2007
New Revision: 506084
URL: http://svn.apache.org/viewvc?view=rev&rev=506084
Log:
Add improved documentation about TypeCoercer
Added:
tapestry/tapestry5/tapestry-ioc/trunk/src/images/
tapestry/tapestry5/tapestry-ioc/trunk/src/images/type-coercer.graffle
tapestry/tapestry5/tapestry-ioc/trunk/src/site/apt/coerce.apt
tapestry/tapestry5/tapestry-ioc/trunk/src/site/resources/images/type-coercer.png
(with props)
Modified:
tapestry/tapestry5/tapestry-ioc/trunk/src/site/site.xml
Added: tapestry/tapestry5/tapestry-ioc/trunk/src/images/type-coercer.graffle
URL:
http://svn.apache.org/viewvc/tapestry/tapestry5/tapestry-ioc/trunk/src/images/type-coercer.graffle?view=auto&rev=506084
==============================================================================
--- tapestry/tapestry5/tapestry-ioc/trunk/src/images/type-coercer.graffle
(added)
+++ tapestry/tapestry5/tapestry-ioc/trunk/src/images/type-coercer.graffle Sun
Feb 11 10:26:08 2007
@@ -0,0 +1,1221 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN"
"http://www.apple.com/DTDs/PropertyList-1.0.dtd";>
+<plist version="1.0">
+<dict>
+ <key>ActiveLayerIndex</key>
+ <integer>0</integer>
+ <key>AutoAdjust</key>
+ <true/>
+ <key>CanvasColor</key>
+ <dict>
+ <key>w</key>
+ <string>1</string>
+ </dict>
+ <key>CanvasOrigin</key>
+ <string>{0, 0}</string>
+ <key>CanvasScale</key>
+ <real>1</real>
+ <key>ColumnAlign</key>
+ <integer>1</integer>
+ <key>ColumnSpacing</key>
+ <real>36</real>
+ <key>CreationDate</key>
+ <string>2007-02-11 09:26:40 -0800</string>
+ <key>Creator</key>
+ <string>Howard Lewis Ship</string>
+ <key>DisplayScale</key>
+ <string>1 in = 1 in</string>
+ <key>GraphDocumentVersion</key>
+ <integer>5</integer>
+ <key>GraphicsList</key>
+ <array>
+ <dict>
+ <key>Class</key>
+ <string>LineGraphic</string>
+ <key>Head</key>
+ <dict>
+ <key>ID</key>
+ <integer>30</integer>
+ </dict>
+ <key>ID</key>
+ <integer>51</integer>
+ <key>Points</key>
+ <array>
+ <string>{341, 426.5}</string>
+ <string>{341, 385.5}</string>
+ </array>
+ <key>Style</key>
+ <dict>
+ <key>stroke</key>
+ <dict>
+ <key>HeadArrow</key>
+ <string>FilledArrow</string>
+ <key>LineType</key>
+ <integer>1</integer>
+ <key>TailArrow</key>
+ <string>0</string>
+ <key>Width</key>
+ <real>4</real>
+ </dict>
+ </dict>
+ <key>Tail</key>
+ <dict>
+ <key>ID</key>
+ <integer>50</integer>
+ </dict>
+ </dict>
+ <dict>
+ <key>Bounds</key>
+ <string>{{307, 427}, {68, 36}}</string>
+ <key>Class</key>
+ <string>ShapedGraphic</string>
+ <key>ID</key>
+ <integer>50</integer>
+ <key>Shape</key>
+ <string>RoundRect</string>
+ <key>Style</key>
+ <dict>
+ <key>fill</key>
+ <dict>
+ <key>Color</key>
+ <dict>
+ <key>b</key>
+ <string>0.0941176</string>
+ <key>g</key>
+ <string>0.917647</string>
+ <key>r</key>
+ <string>1</string>
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+ </dict>
+ </dict>
+ <key>Text</key>
+ <dict>
+ <key>Text</key>
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+ <string>LineGraphic</string>
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+ <key>Points</key>
+ <array>
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+ <string>{191.5, 508.8}</string>
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+ <key>Style</key>
+ <dict>
+ <key>stroke</key>
+ <dict>
+ <key>HeadArrow</key>
+ <string>FilledArrow</string>
+ <key>LineType</key>
+ <integer>1</integer>
+ <key>TailArrow</key>
+ <string>0</string>
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+ <real>4</real>
+ </dict>
+ </dict>
+ <key>Tail</key>
+ <dict>
+ <key>ID</key>
+ <integer>48</integer>
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+ <string>{{161.5, 558}, {61, 36}}</string>
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+ <key>Shape</key>
+ <string>RoundRect</string>
+ <key>Style</key>
+ <dict>
+ <key>fill</key>
+ <dict>
+ <key>Color</key>
+ <dict>
+ <key>b</key>
+ <string>0.0941176</string>
+ <key>g</key>
+ <string>0.917647</string>
+ <key>r</key>
+ <string>1</string>
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+ </dict>
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+ <key>Text</key>
+ <dict>
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+ </dict>
+ <dict>
+ <key>Class</key>
+ <string>LineGraphic</string>
+ <key>Head</key>
+ <dict>
+ <key>ID</key>
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+ <key>Points</key>
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+ </array>
+ <key>Style</key>
+ <dict>
+ <key>stroke</key>
+ <dict>
+ <key>HeadArrow</key>
+ <string>FilledArrow</string>
+ <key>LineType</key>
+ <integer>1</integer>
+ <key>TailArrow</key>
+ <string>0</string>
+ <key>Width</key>
+ <real>4</real>
+ </dict>
+ </dict>
+ <key>Tail</key>
+ <dict>
+ <key>ID</key>
+ <integer>30</integer>
+ </dict>
+ </dict>
+ <dict>
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+ <key>Shape</key>
+ <string>RoundRect</string>
+ <key>Style</key>
+ <dict>
+ <key>fill</key>
+ <dict>
+ <key>Color</key>
+ <dict>
+ <key>b</key>
+ <string>0.0941176</string>
+ <key>g</key>
+ <string>0.917647</string>
+ <key>r</key>
+ <string>1</string>
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+ </dict>
+ </dict>
+ <key>Text</key>
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+
+\f0\fs24 \cf0 Boolean}</string>
+ </dict>
+ </dict>
+ <dict>
+ <key>Bounds</key>
+ <string>{{446, 333.5}, {61, 36}}</string>
+ <key>Class</key>
+ <string>ShapedGraphic</string>
+ <key>FontInfo</key>
+ <dict>
+ <key>Color</key>
+ <dict>
+ <key>w</key>
+ <string>0</string>
+ </dict>
+ <key>Font</key>
+ <string>Helvetica</string>
+ <key>NSKern</key>
+ <real>0.0</real>
+ <key>Size</key>
+ <real>12</real>
+ </dict>
+ <key>ID</key>
+ <integer>40</integer>
+ <key>Shape</key>
+ <string>RoundRect</string>
+ <key>Style</key>
+ <dict>
+ <key>fill</key>
+ <dict>
+ <key>Color</key>
+ <dict>
+ <key>b</key>
+ <string>0.0941176</string>
+ <key>g</key>
+ <string>0.917647</string>
+ <key>r</key>
+ <string>1</string>
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+ <key>GradientColor</key>
+ <dict>
+ <key>w</key>
+ <string>0.666667</string>
+ </dict>
+ </dict>
+ </dict>
+ <key>Text</key>
+ <dict>
+ <key>Text</key>
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+ <dict>
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+ <key>Class</key>
+ <string>ShapedGraphic</string>
+ <key>ID</key>
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+ <key>Shape</key>
+ <string>RoundRect</string>
+ <key>Style</key>
+ <dict>
+ <key>fill</key>
+ <dict>
+ <key>Color</key>
+ <dict>
+ <key>b</key>
+ <string>0.0941176</string>
+ <key>g</key>
+ <string>0.917647</string>
+ <key>r</key>
+ <string>1</string>
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+ </dict>
+ </dict>
+ <key>Text</key>
+ <dict>
+ <key>Text</key>
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+ <dict>
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+ <key>Class</key>
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+ <key>Shape</key>
+ <string>RoundRect</string>
+ <key>Style</key>
+ <dict>
+ <key>fill</key>
+ <dict>
+ <key>Color</key>
+ <dict>
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+ <key>g</key>
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+ <string>RoundRect</string>
+ <key>Style</key>
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+ <key>fill</key>
+ <dict>
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+ <dict>
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+ <dict>
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+ <key>Style</key>
+ <dict>
+ <key>fill</key>
+ <dict>
+ <key>Color</key>
+ <dict>
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+ <key>r</key>
+ <string>1</string>
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+ <key>Text</key>
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+ <string>{{442.5, 472.8}, {61, 36}}</string>
+ <key>Class</key>
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+ <key>FontInfo</key>
+ <dict>
+ <key>Color</key>
+ <dict>
+ <key>w</key>
+ <string>0</string>
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+ <key>Font</key>
+ <string>Helvetica</string>
+ <key>NSKern</key>
+ <real>0.0</real>
+ <key>Size</key>
+ <real>12</real>
+ </dict>
+ <key>ID</key>
+ <integer>5</integer>
+ <key>Shape</key>
+ <string>RoundRect</string>
+ <key>Style</key>
+ <dict>
+ <key>fill</key>
+ <dict>
+ <key>Color</key>
+ <dict>
+ <key>b</key>
+ <string>0.0941176</string>
+ <key>g</key>
+ <string>0.917647</string>
+ <key>r</key>
+ <string>1</string>
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+ <key>GradientColor</key>
+ <dict>
+ <key>w</key>
+ <string>0.666667</string>
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+ </dict>
+ </dict>
+ <key>Text</key>
+ <dict>
+ <key>Text</key>
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+ <dict>
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+ <dict>
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+ <string>0</string>
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+ <dict>
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+ <integer>4</integer>
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+ <dict>
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+ <string>LineGraphic</string>
+ <key>Head</key>
+ <dict>
+ <key>ID</key>
+ <integer>40</integer>
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+ <key>Style</key>
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+ <key>LineType</key>
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+ <key>TailArrow</key>
+ <string>0</string>
+ <key>Width</key>
+ <real>4</real>
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+ <key>Tail</key>
+ <dict>
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+ </dict>
+ <dict>
+ <key>Class</key>
+ <string>LineGraphic</string>
+ <key>Head</key>
+ <dict>
+ <key>ID</key>
+ <integer>30</integer>
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+ <key>Points</key>
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+ <string>{360.546, 385.331}</string>
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+ <dict>
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+ <dict>
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+ <string>FilledArrow</string>
+ <key>LineType</key>
+ <integer>1</integer>
+ <key>TailArrow</key>
+ <string>FilledArrow</string>
+ <key>Width</key>
+ <real>4</real>
+ </dict>
+ </dict>
+ <key>Tail</key>
+ <dict>
+ <key>ID</key>
+ <integer>5</integer>
+ </dict>
+ </dict>
+ <dict>
+ <key>Class</key>
+ <string>LineGraphic</string>
+ <key>Head</key>
+ <dict>
+ <key>ID</key>
+ <integer>37</integer>
+ </dict>
+ <key>ID</key>
+ <integer>38</integer>
+ <key>Points</key>
+ <array>
+ <string>{321.94, 348.653}</string>
+ <string>{266.56, 295.347}</string>
+ </array>
+ <key>Style</key>
+ <dict>
+ <key>stroke</key>
+ <dict>
+ <key>HeadArrow</key>
+ <string>FilledArrow</string>
+ <key>LineType</key>
+ <integer>1</integer>
+ <key>TailArrow</key>
+ <string>0</string>
+ <key>Width</key>
+ <real>4</real>
+ </dict>
+ </dict>
+ <key>Tail</key>
+ <dict>
+ <key>ID</key>
+ <integer>30</integer>
+ </dict>
+ </dict>
+ <dict>
+ <key>Class</key>
+ <string>LineGraphic</string>
+ <key>Head</key>
+ <dict>
+ <key>ID</key>
+ <integer>35</integer>
+ </dict>
+ <key>ID</key>
+ <integer>36</integer>
+ <key>Points</key>
+ <array>
+ <string>{364.541, 351.364}</string>
+ <string>{452.96, 292.636}</string>
+ </array>
+ <key>Style</key>
+ <dict>
+ <key>stroke</key>
+ <dict>
+ <key>HeadArrow</key>
+ <string>FilledArrow</string>
+ <key>LineType</key>
+ <integer>1</integer>
+ <key>TailArrow</key>
+ <string>0</string>
+ <key>Width</key>
+ <real>4</real>
+ </dict>
+ </dict>
+ <key>Tail</key>
+ <dict>
+ <key>ID</key>
+ <integer>30</integer>
+ </dict>
+ </dict>
+ <dict>
+ <key>Class</key>
+ <string>LineGraphic</string>
+ <key>Head</key>
+ <dict>
+ <key>ID</key>
+ <integer>33</integer>
+ </dict>
+ <key>ID</key>
+ <integer>34</integer>
+ <key>Points</key>
+ <array>
+ <string>{340.692, 348.5}</string>
+ <string>{339.808, 295.5}</string>
+ </array>
+ <key>Style</key>
+ <dict>
+ <key>stroke</key>
+ <dict>
+ <key>HeadArrow</key>
+ <string>FilledArrow</string>
+ <key>LineType</key>
+ <integer>1</integer>
+ <key>TailArrow</key>
+ <string>0</string>
+ <key>Width</key>
+ <real>4</real>
+ </dict>
+ </dict>
+ <key>Tail</key>
+ <dict>
+ <key>ID</key>
+ <integer>30</integer>
+ </dict>
+ </dict>
+ <dict>
+ <key>Class</key>
+ <string>LineGraphic</string>
+ <key>Head</key>
+ <dict>
+ <key>ID</key>
+ <integer>30</integer>
+ </dict>
+ <key>ID</key>
+ <integer>32</integer>
+ <key>Points</key>
+ <array>
+ <string>{213.342, 473.067}</string>
+ <string>{319.658, 384.733}</string>
+ </array>
+ <key>Style</key>
+ <dict>
+ <key>stroke</key>
+ <dict>
+ <key>HeadArrow</key>
+ <string>FilledArrow</string>
+ <key>LineType</key>
+ <integer>1</integer>
+ <key>TailArrow</key>
+ <string>0</string>
+ <key>Width</key>
+ <real>4</real>
+ </dict>
+ </dict>
+ <key>Tail</key>
+ <dict>
+ <key>ID</key>
+ <integer>4</integer>
+ </dict>
+ </dict>
+ <dict>
+ <key>Class</key>
+ <string>LineGraphic</string>
+ <key>Head</key>
+ <dict>
+ <key>ID</key>
+ <integer>30</integer>
+ </dict>
+ <key>ID</key>
+ <integer>31</integer>
+ <key>Points</key>
+ <array>
+ <string>{128.297, 291.335}</string>
+ <string>{314.667, 357.632}</string>
+ </array>
+ <key>Style</key>
+ <dict>
+ <key>stroke</key>
+ <dict>
+ <key>HeadArrow</key>
+ <string>FilledArrow</string>
+ <key>LineType</key>
+ <integer>1</integer>
+ <key>TailArrow</key>
+ <string>0</string>
+ <key>Width</key>
+ <real>4</real>
+ </dict>
+ </dict>
+ <key>Tail</key>
+ <dict>
+ <key>ID</key>
+ <integer>28</integer>
+ </dict>
+ </dict>
+ <dict>
+ <key>Class</key>
+ <string>LineGraphic</string>
+ <key>Head</key>
+ <dict>
+ <key>ID</key>
+ <integer>28</integer>
+ </dict>
+ <key>ID</key>
+ <integer>29</integer>
+ <key>Points</key>
+ <array>
+ <string>{183.025, 472.35}</string>
+ <string>{96.9745, 295.45}</string>
+ </array>
+ <key>Style</key>
+ <dict>
+ <key>stroke</key>
+ <dict>
+ <key>HeadArrow</key>
+ <string>FilledArrow</string>
+ <key>LineType</key>
+ <integer>1</integer>
+ <key>TailArrow</key>
+ <string>0</string>
+ <key>Width</key>
+ <real>4</real>
+ </dict>
+ </dict>
+ <key>Tail</key>
+ <dict>
+ <key>ID</key>
+ <integer>4</integer>
+ </dict>
+ </dict>
+ <dict>
+ <key>Class</key>
+ <string>LineGraphic</string>
+ <key>Head</key>
+ <dict>
+ <key>ID</key>
+ <integer>5</integer>
+ </dict>
+ <key>ID</key>
+ <integer>27</integer>
+ <key>Points</key>
+ <array>
+ <string>{386.196, 539.154}</string>
+ <string>{435, 535}</string>
+ <string>{457.199, 509.179}</string>
+ </array>
+ <key>Style</key>
+ <dict>
+ <key>stroke</key>
+ <dict>
+ <key>HeadArrow</key>
+ <string>FilledArrow</string>
+ <key>LineType</key>
+ <integer>1</integer>
+ <key>TailArrow</key>
+ <string>FilledArrow</string>
+ <key>Width</key>
+ <real>4</real>
+ </dict>
+ </dict>
+ <key>Tail</key>
+ <dict>
+ <key>ID</key>
+ <integer>25</integer>
+ </dict>
+ </dict>
+ <dict>
+ <key>Class</key>
+ <string>LineGraphic</string>
+ <key>Head</key>
+ <dict>
+ <key>ID</key>
+ <integer>25</integer>
+ </dict>
+ <key>ID</key>
+ <integer>26</integer>
+ <key>Points</key>
+ <array>
+ <string>{218.368, 500.038}</string>
+ <string>{300.55, 528.829}</string>
+ </array>
+ <key>Style</key>
+ <dict>
+ <key>stroke</key>
+ <dict>
+ <key>HeadArrow</key>
+ <string>FilledArrow</string>
+ <key>LineType</key>
+ <integer>1</integer>
+ <key>TailArrow</key>
+ <string>0</string>
+ <key>Width</key>
+ <real>4</real>
+ </dict>
+ </dict>
+ <key>Tail</key>
+ <dict>
+ <key>ID</key>
+ <integer>4</integer>
+ </dict>
+ </dict>
+ <dict>
+ <key>Class</key>
+ <string>LineGraphic</string>
+ <key>Head</key>
+ <dict>
+ <key>ID</key>
+ <integer>5</integer>
+ </dict>
+ <key>ID</key>
+ <integer>24</integer>
+ <key>Points</key>
+ <array>
+ <string>{219.5, 490.827}</string>
+ <string>{393, 491}</string>
+ <string>{442, 490.878}</string>
+ </array>
+ <key>Style</key>
+ <dict>
+ <key>stroke</key>
+ <dict>
+ <key>HeadArrow</key>
+ <string>FilledArrow</string>
+ <key>LineType</key>
+ <integer>1</integer>
+ <key>TailArrow</key>
+ <string>0</string>
+ <key>Width</key>
+ <real>4</real>
+ </dict>
+ </dict>
+ <key>Tail</key>
+ <dict>
+ <key>ID</key>
+ <integer>4</integer>
+ </dict>
+ </dict>
+ </array>
+ <key>GridInfo</key>
+ <dict/>
+ <key>GuidesLocked</key>
+ <string>NO</string>
+ <key>GuidesVisible</key>
+ <string>YES</string>
+ <key>HPages</key>
+ <integer>1</integer>
+ <key>ImageCounter</key>
+ <integer>1</integer>
+ <key>IsPalette</key>
+ <string>NO</string>
+ <key>KeepToScale</key>
+ <false/>
+ <key>Layers</key>
+ <array>
+ <dict>
+ <key>Lock</key>
+ <string>NO</string>
+ <key>Name</key>
+ <string>Layer 1</string>
+ <key>Print</key>
+ <string>YES</string>
+ <key>View</key>
+ <string>YES</string>
+ </dict>
+ </array>
+ <key>LayoutInfo</key>
+ <dict/>
+ <key>LinksVisible</key>
+ <string>NO</string>
+ <key>MagnetsVisible</key>
+ <string>NO</string>
+ <key>MasterSheet</key>
+ <string>Master 1</string>
+ <key>MasterSheets</key>
+ <array>
+ <dict>
+ <key>ActiveLayerIndex</key>
+ <integer>0</integer>
+ <key>AutoAdjust</key>
+ <true/>
+ <key>CanvasColor</key>
+ <dict>
+ <key>w</key>
+ <string>1</string>
+ </dict>
+ <key>CanvasOrigin</key>
+ <string>{0, 0}</string>
+ <key>CanvasScale</key>
+ <real>1</real>
+ <key>ColumnAlign</key>
+ <integer>1</integer>
+ <key>ColumnSpacing</key>
+ <real>36</real>
+ <key>DisplayScale</key>
+ <string>1 in = 1 in</string>
+ <key>GraphicsList</key>
+ <array/>
+ <key>GridInfo</key>
+ <dict/>
+ <key>HPages</key>
+ <integer>1</integer>
+ <key>IsPalette</key>
+ <string>NO</string>
+ <key>KeepToScale</key>
+ <false/>
+ <key>Layers</key>
+ <array>
+ <dict>
+ <key>Lock</key>
+ <string>NO</string>
+ <key>Name</key>
+ <string>Layer 1</string>
+ <key>Print</key>
+ <string>YES</string>
+ <key>View</key>
+ <string>YES</string>
+ </dict>
+ </array>
+ <key>LayoutInfo</key>
+ <dict/>
+ <key>Orientation</key>
+ <integer>2</integer>
+ <key>OutlineStyle</key>
+ <string>Basic</string>
+ <key>RowAlign</key>
+ <integer>1</integer>
+ <key>RowSpacing</key>
+ <real>36</real>
+ <key>SheetTitle</key>
+ <string>Master 1</string>
+ <key>UniqueID</key>
+ <integer>1</integer>
+ <key>VPages</key>
+ <integer>1</integer>
+ </dict>
+ </array>
+ <key>ModificationDate</key>
+ <string>2007-02-11 10:11:41 -0800</string>
+ <key>Modifier</key>
+ <string>Howard Lewis Ship</string>
+ <key>NotesVisible</key>
+ <string>NO</string>
+ <key>Orientation</key>
+ <integer>2</integer>
+ <key>OriginVisible</key>
+ <string>NO</string>
+ <key>OutlineStyle</key>
+ <string>Basic</string>
+ <key>PageBreaks</key>
+ <string>YES</string>
+ <key>PrintInfo</key>
+ <dict>
+ <key>NSBottomMargin</key>
+ <array>
+ <string>float</string>
+ <string>0</string>
+ </array>
+ <key>NSLeftMargin</key>
+ <array>
+ <string>float</string>
+ <string>0</string>
+ </array>
+ <key>NSPaperSize</key>
+ <array>
+ <string>size</string>
+ <string>{612, 792}</string>
+ </array>
+ <key>NSRightMargin</key>
+ <array>
+ <string>float</string>
+ <string>0</string>
+ </array>
+ <key>NSTopMargin</key>
+ <array>
+ <string>float</string>
+ <string>0</string>
+ </array>
+ </dict>
+ <key>ReadOnly</key>
+ <string>NO</string>
+ <key>RowAlign</key>
+ <integer>1</integer>
+ <key>RowSpacing</key>
+ <real>36</real>
+ <key>SheetTitle</key>
+ <string>Canvas 1</string>
+ <key>SmartAlignmentGuidesActive</key>
+ <string>YES</string>
+ <key>SmartDistanceGuidesActive</key>
+ <string>YES</string>
+ <key>UniqueID</key>
+ <integer>1</integer>
+ <key>UseEntirePage</key>
+ <true/>
+ <key>VPages</key>
+ <integer>1</integer>
+ <key>WindowInfo</key>
+ <dict>
+ <key>CurrentSheet</key>
+ <string>0</string>
+ <key>DrawerOpen</key>
+ <true/>
+ <key>DrawerTab</key>
+ <string>Outline</string>
+ <key>DrawerWidth</key>
+ <real>209</real>
+ <key>FitInWindow</key>
+ <false/>
+ <key>Frame</key>
+ <string>{{512, 388}, {594, 870}}</string>
+ <key>ShowRuler</key>
+ <false/>
+ <key>ShowStatusBar</key>
+ <true/>
+ <key>VisibleRegion</key>
+ <string>{{0, 0}, {579, 756}}</string>
+ <key>Zoom</key>
+ <string>1</string>
+ </dict>
+</dict>
+</plist>
Added: tapestry/tapestry5/tapestry-ioc/trunk/src/site/apt/coerce.apt
URL:
http://svn.apache.org/viewvc/tapestry/tapestry5/tapestry-ioc/trunk/src/site/apt/coerce.apt?view=auto&rev=506084
==============================================================================
--- tapestry/tapestry5/tapestry-ioc/trunk/src/site/apt/coerce.apt (added)
+++ tapestry/tapestry5/tapestry-ioc/trunk/src/site/apt/coerce.apt Sun Feb 11
10:26:08 2007
@@ -0,0 +1,61 @@
+ ----
+ Type Coercion
+ ----
+
+Type Coercion
+
+ Tapestry frequently must coerce objects from one type to another. By
coercion, we mean to convert an object of some type into a new object
+ of a different type with similar content: a common example is coercing a
string into an integer or a double.
+
+ Although these types of coercions happens more inside
+ tapestry-core (inlcuding coercions of
{{{http://tapestry.apache.org/tapestry5/tapestry-core/guide/coercion.html}parameters}}),
this
+ may also happen inside tapestry-ioc, such as when injecting a value, rather
than a service, into a builder method.
+
+ Like everything else in Tapestry, type coercions are extensible. At the
root is the
+
{{{apidocs/org/apache/tapestry/ioc/services/TypeCoercer.html}tapestry.ioc.TypeCoercer}}
service. Its configuration consists
+ of a number of
+
{{{apidocs/org/apache/tapestry/ioc/services/CoercionTuple.html}CoercionTuple}}s.
Each tuple defines how to coerce from one type to another.
+
+ There's a large number of built-in coercions, the most common are shown in
the following diagram:
+
+[images/type-coercer.png] Basic Type Coercions
+
+ This diagram omits a number of coercions related to nulls and collection
types.
+
+ Tapestry can <interpolate> necessary coercions. For example, say it is
necessary to coerce a StringBuffer to an Integer; the
+ TypeCoercer will chain together a series of coercions:
+
+ * Object --\> String
+
+ * String --> Long
+
+ * Long --> Integer
+
+ []
+
+Contributing new Coercions
+
+ TypeCoercer is extensible, you may add new coercions as desired. For
example, let's say you have a Money type that represents
+ an amount of some currency, and you want to be able to convert between
BigDecimal and Money. Further, let's assume that
+ Money has a constructor that accepts a BigDecimal as its parameter. We'll
use a little Tapestry IOC configuration jujitsu to
+ inform the TypeCoercer about this coercion.
+
++---+
+ @Contribute("tapestry.ioc.TypeCoercer")
+ public void contributeMoneyCoercion(Configuration<CoercionTuple>
configuration)
+ {
+ Coercion<BigDecimal, Money> coercion = new Coercion<BigDecimal, Money>()
+ {
+ public Money coerce(BigDecimal input)
+ {
+ return new Money(input);
+ }
+ };
+
+ configuration.add(new CoercionTuple<BigDecimal, Money>(BigDecimal.class,
Money.class, coercion));
+ }
++---+
+
+ Further, since TypeCoercer knows how to convert Double to BigDecimal, or
even Integer (to Long to Double) to BigDecimal, all of those coercions would
+ work as well.
+
\ No newline at end of file
Added:
tapestry/tapestry5/tapestry-ioc/trunk/src/site/resources/images/type-coercer.png
URL:
http://svn.apache.org/viewvc/tapestry/tapestry5/tapestry-ioc/trunk/src/site/resources/images/type-coercer.png?view=auto&rev=506084
==============================================================================
Binary file - no diff available.
Propchange:
tapestry/tapestry5/tapestry-ioc/trunk/src/site/resources/images/type-coercer.png
------------------------------------------------------------------------------
svn:mime-type = application/octet-stream
Modified: tapestry/tapestry5/tapestry-ioc/trunk/src/site/site.xml
URL:
http://svn.apache.org/viewvc/tapestry/tapestry5/tapestry-ioc/trunk/src/site/site.xml?view=diff&rev=506084&r1=506083&r2=506084
==============================================================================
--- tapestry/tapestry5/tapestry-ioc/trunk/src/site/site.xml (original)
+++ tapestry/tapestry5/tapestry-ioc/trunk/src/site/site.xml Sun Feb 11 10:26:08
2007
@@ -54,6 +54,7 @@
<item name="Services" href="service.html"/>
<item name="Decorators" href="decorator.html"/>
<item name="Configuration" href="configuration.html"/>
+ <item name="Type Coercion" href="coerce.html"/>
<item name="Case Insensitivity" href="case.html"/>
<item name="Symbols" href="symbols.html"/>
<item name="Starting the Registry" href="run.html"/>
