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Merge "Fixes Issue 7907 in the public bugs database (http://code.google.com/p/android/issues/detail?id=7907)."

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This commit is contained in:
Jean-Baptiste Queru
2010-11-01 10:29:22 -07:00
committed by Android Code Review
parent cee8d1d345 0a675fd8fe
commit b1fa549a49
1 changed files with 32 additions and 32 deletions
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64
core/java/android/content/UriMatcher.java
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@@ -25,8 +25,8 @@ import java.util.regex.Pattern;
/**
Utility class to aid in matching URIs in content providers.
<p>To use this class, build up a tree of UriMatcher objects.
Typically, it looks something like this:
<p>To use this class, build up a tree of <code>UriMatcher</code> objects.
For example:
<pre>
private static final int PEOPLE = 1;
private static final int PEOPLE_ID = 2;
@@ -48,36 +48,35 @@ Typically, it looks something like this:
private static final int CALLS_ID = 12;
private static final int CALLS_FILTER = 15;
private static final UriMatcher sURIMatcher = new UriMatcher();
private static final UriMatcher sURIMatcher = new UriMatcher(UriMatcher.NO_MATCH);
static
{
sURIMatcher.addURI("contacts", "/people", PEOPLE);
sURIMatcher.addURI("contacts", "/people/#", PEOPLE_ID);
sURIMatcher.addURI("contacts", "/people/#/phones", PEOPLE_PHONES);
sURIMatcher.addURI("contacts", "/people/#/phones/#", PEOPLE_PHONES_ID);
sURIMatcher.addURI("contacts", "/people/#/contact_methods", PEOPLE_CONTACTMETHODS);
sURIMatcher.addURI("contacts", "/people/#/contact_methods/#", PEOPLE_CONTACTMETHODS_ID);
sURIMatcher.addURI("contacts", "/deleted_people", DELETED_PEOPLE);
sURIMatcher.addURI("contacts", "/phones", PHONES);
sURIMatcher.addURI("contacts", "/phones/filter/*", PHONES_FILTER);
sURIMatcher.addURI("contacts", "/phones/#", PHONES_ID);
sURIMatcher.addURI("contacts", "/contact_methods", CONTACTMETHODS);
sURIMatcher.addURI("contacts", "/contact_methods/#", CONTACTMETHODS_ID);
sURIMatcher.addURI("call_log", "/calls", CALLS);
sURIMatcher.addURI("call_log", "/calls/filter/*", CALLS_FILTER);
sURIMatcher.addURI("call_log", "/calls/#", CALLS_ID);
sURIMatcher.addURI("contacts", "people", PEOPLE);
sURIMatcher.addURI("contacts", "people/#", PEOPLE_ID);
sURIMatcher.addURI("contacts", "people/#/phones", PEOPLE_PHONES);
sURIMatcher.addURI("contacts", "people/#/phones/#", PEOPLE_PHONES_ID);
sURIMatcher.addURI("contacts", "people/#/contact_methods", PEOPLE_CONTACTMETHODS);
sURIMatcher.addURI("contacts", "people/#/contact_methods/#", PEOPLE_CONTACTMETHODS_ID);
sURIMatcher.addURI("contacts", "deleted_people", DELETED_PEOPLE);
sURIMatcher.addURI("contacts", "phones", PHONES);
sURIMatcher.addURI("contacts", "phones/filter/*", PHONES_FILTER);
sURIMatcher.addURI("contacts", "phones/#", PHONES_ID);
sURIMatcher.addURI("contacts", "contact_methods", CONTACTMETHODS);
sURIMatcher.addURI("contacts", "contact_methods/#", CONTACTMETHODS_ID);
sURIMatcher.addURI("call_log", "calls", CALLS);
sURIMatcher.addURI("call_log", "calls/filter/*", CALLS_FILTER);
sURIMatcher.addURI("call_log", "calls/#", CALLS_ID);
}
</pre>
<p>Then when you need to match match against a URI, call {@link #match}, providing
the tokenized url you've been given, and the value you want if there isn't
a match. You can use the result to build a query, return a type, insert or
delete a row, or whatever you need, without duplicating all of the if-else
logic you'd otherwise need. Like this:
<p>Then when you need to match against a URI, call {@link #match}, providing
the URL that you have been given. You can use the result to build a query,
return a type, insert or delete a row, or whatever you need, without duplicating
all of the if-else logic that you would otherwise need. For example:
<pre>
public String getType(String[] url)
public String getType(Uri url)
{
int match = sURIMatcher.match(url, NO_MATCH);
int match = sURIMatcher.match(url);
switch (match)
{
case PEOPLE:
@@ -93,19 +92,20 @@ logic you'd otherwise need. Like this:
}
}
</pre>
instead of
instead of:
<pre>
public String getType(String[] url)
public String getType(Uri url)
{
if (url.length >= 2) {
if (url[1].equals("people")) {
if (url.length == 2) {
List<String> pathSegments = url.getPathSegments();
if (pathSegments.size() >= 2) {
if ("people".equals(pathSegments.get(1))) {
if (pathSegments.size() == 2) {
return "vnd.android.cursor.dir/person";
} else if (url.length == 3) {
} else if (pathSegments.size() == 3) {
return "vnd.android.cursor.item/person";
... snip ...
return "vnd.android.cursor.dir/snail-mail";
} else if (url.length == 3) {
} else if (pathSegments.size() == 3) {
return "vnd.android.cursor.item/snail-mail";
}
}