Spring/spring-ws
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

SWS-640 - evaluateAsBoolean returns true for node with text content "false"

Browse Source
This commit is contained in:
Arjen Poutsma
2010-09-01 11:25:21 +00:00
parent 034ea83766
commit 86ce86f353
2 changed files with 33 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
xml/src/main/java/org/springframework/xml/xpath/XPathExpression.java
View File

@@ -35,11 +35,18 @@ public interface XPathExpression {
/**
* Evaluates the given expression as a <code>boolean</code>. Returns the boolean evaluation of the expression, or
* <code>false</code> if it is invalid.
* <p/>
* The return value is determined per the {@code boolean()} function defined in the XPath specification.
* This means that an expression that selects zero nodes will return {@code false}, while an expression that
* selects one or more nodes will return {@code true}.
* An expression that returns a string returns {@code false} for empty strings and {@code true} for all other
* strings.
* An expression that returns a number returns {@code false} for zero and {@code true} for non-zero numbers.
*
* @param node the starting point
* @return the result of the evaluation
* @throws XPathException in case of XPath errors
* @see <a href="http://www.w3.org/TR/xpath#booleans">XPath specification</a>
* @see <a href="http://www.w3.org/TR/xpath/#function-boolean">XPath specification - boolean() function</a>
*/
boolean evaluateAsBoolean(Node node) throws XPathException;
@@ -68,21 +75,27 @@ public interface XPathExpression {
/**
* Evaluates the given expression as a number (<code>double</code>). Returns the numeric evaluation of the
* expression, or {@link Double#NaN} if it is invalid.
* <p/>
* The return value is determined per the {@code number()} function as defined in the XPath specification.
* This means that if the expression selects multiple nodes, it will return the number value of the first node.
*
* @param node the starting point
* @return the result of the evaluation
* @throws XPathException in case of XPath errors
* @see <a href="http://www.w3.org/TR/xpath#numbers">XPath specification</a>
* @see <a href="http://www.w3.org/TR/xpath/#function-number">XPath specification - number() function</a>
*/
double evaluateAsNumber(Node node) throws XPathException;
/**
* Evaluates the given expression as a String. Returns <code>null</code> if no result could be found.
* <p/>
* The return value is determined per the {@code string()} function as defined in the XPath specification.
* This means that if the expression selects multiple nodes, it will return the string value of the first node.
*
* @param node the starting point
* @return the result of the evaluation
* @throws XPathException in case of XPath errors
* @see <a href="http://www.w3.org/TR/xpath#strings">XPath specification</a>
* @see <a href="http://www.w3.org/TR/xpath/#function-string">XPath specification - string() function</a>
*/
String evaluateAsString(Node node) throws XPathException;

21
xml/src/main/java/org/springframework/xml/xpath/XPathOperations.java
View File

@@ -38,12 +38,19 @@ public interface XPathOperations {
/**
* Evaluates the given expression as a <code>boolean</code>. Returns the boolean evaluation of the expression, or
* <code>false</code> if it is invalid.
* <p/>
* The return value is determined per the {@code boolean()} function defined in the XPath specification.
* This means that an expression that selects zero nodes will return {@code false}, while an expression that
* selects one or more nodes will return {@code true}.
* An expression that returns a string returns {@code false} for empty strings and {@code true} for all other
* strings.
* An expression that returns a number returns {@code false} for zero and {@code true} for non-zero numbers.
*
* @param expression the XPath expression
* @param context the context starting point
* @return the result of the evaluation
* @throws XPathException in case of XPath errors
* @see <a href="http://www.w3.org/TR/xpath#booleans">XPath specification</a>
* @see <a href="http://www.w3.org/TR/xpath/#function-boolean">XPath specification - boolean() function</a>
*/
boolean evaluateAsBoolean(String expression, Source context) throws XPathException;
@@ -74,24 +81,30 @@ public interface XPathOperations {
/**
* Evaluates the given expression as a <code>double</code>. Returns the evaluation of the expression, or {@link
* Double#NaN} if it is invalid.
*
* <p/>
* The return value is determined per the {@code number()} function as defined in the XPath specification.
* This means that if the expression selects multiple nodes, it will return the number value of the first node.
*
* @param expression the XPath expression
* @param context the context starting point
* @return the result of the evaluation
* @throws XPathException in case of XPath errors
* @see <a href="http://www.w3.org/TR/xpath#numbers">XPath specification</a>
* @see <a href="http://www.w3.org/TR/xpath/#function-number">XPath specification - number() function</a>
*/
double evaluateAsDouble(String expression, Source context) throws XPathException;
/**
* Evaluates the given expression as a {@link String}. Returns the evaluation of the expression, or
* <code>null</code> if it is invalid.
* <p/>
* The return value is determined per the {@code string()} function as defined in the XPath specification.
* This means that if the expression selects multiple nodes, it will return the string value of the first node.
*
* @param expression the XPath expression
* @param context the context starting point
* @return the result of the evaluation
* @throws XPathException in case of XPath errors
* @see <a href="http://www.w3.org/TR/xpath#strings">XPath specification</a>
* @see <a href="http://www.w3.org/TR/xpath/#function-string">XPath specification - string() function</a>
*/
String evaluateAsString(String expression, Source context) throws XPathException;