jmcastagnetto Sun Aug 4 00:14:49 2002 EDT
Modified files:
/phpdoc/en/reference/objaggregation reference.xml
Log:
More typos and some emphasis added
Index: phpdoc/en/reference/objaggregation/reference.xml
diff -u phpdoc/en/reference/objaggregation/reference.xml:1.3
phpdoc/en/reference/objaggregation/reference.xml:1.4
--- phpdoc/en/reference/objaggregation/reference.xml:1.3 Sun Aug 4 00:09:47
2002
+++ phpdoc/en/reference/objaggregation/reference.xml Sun Aug 4 00:14:48 2002
@@ -1,5 +1,5 @@
<?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.3 $ -->
+<!-- $Revision: 1.4 $ -->
<reference id="ref.objaggregation">
<title>Object Aggregation/Composition Functions</title>
<titleabbrev>Object Aggregation</titleabbrev>
@@ -15,10 +15,11 @@
hierachies and can function as a dynamic alternative to multiple
inheritance. There are two ways to perform class (and/or object)
composition depending on the relationship between the composed
- elements: Association and Aggregation.
+ elements: <emphasis>Association</emphasis> and
+ <emphasis>Aggregation</emphasis>.
</para>
<para>
- An Association is a composition of independently constructed and
+ An <emphasis>Association</emphasis> is a composition of independently
+constructed and
externally visible parts. When we associate classes or objects, each
one keeps a reference to the ones it is associated with. When we
associate classes statically, one class will contain a reference to an
@@ -58,7 +59,7 @@
]]>
</programlisting>
</example>
- We call also associate instances at runtime by passing a reference in a
+ We can also associate instances at runtime by passing a reference in a
constructor (or any othe method), which allow us to dynamically change
the association relationship between objects. We will modify the example
above to illustrate this point:
@@ -122,7 +123,8 @@
</example>
</para>
<para>
- Aggregation, on the other hand, implies encapsulation (hidding) of the
+ <emphasis>Aggregation</emphasis>, on the other hand, implies
+ encapsulation (hidding) of the
parts of the composition. We can aggregate classes by using a (static)
inner class (PHP does not yet support inner classes), in this case the
aggregated class definition is not accessible, except through the class
@@ -401,7 +403,7 @@
</informalexample>
</para>
<para>
- One point that we have not mention above, is that the process of
+ One point that we have not mentioned above, is that the process of
aggregation will not override existing properties or methods in the
objects. For example, the class <classname>FileStorage</classname> defines a
<varname>$data</varname> property, and the class
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