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| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You under the Apache License, Version 2.0 |
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| http://www.apache.org/licenses/LICENSE-2.0 |
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| --%> |
| <%@ taglib prefix="my" uri="http://tomcat.apache.org/example-taglib" %> |
| |
| <html> |
| <head> |
| <title>JSP 2.0 Expression Language - Composite Expressions</title> |
| </head> |
| <body> |
| <h1>JSP 2.0 Expression Language - Composite Expressions</h1> |
| <hr> |
| This example illustrates EL composite expressions. Composite expressions |
| are formed by grouping together multiple EL expressions. Each of them is |
| evaluated from left to right, coerced to String, all those strings are |
| concatenated, and the result is coerced to the expected type. |
| |
| <jsp:useBean id="values" class="jsp2.examples.ValuesBean" /> |
| |
| <blockquote> |
| <code> |
| <table border="1"> |
| <thead> |
| <td><b>EL Expression</b></td> |
| <td><b>Type</b></td> |
| <td><b>Result</b></td> |
| </thead> |
| <tr> |
| <td>\${'hello'} wo\${'rld'}</td> |
| <td>String</td> |
| <td><jsp:setProperty name="values" property="stringValue" value="${'hello'} wo${'rld'}"/>${values.stringValue}</td> |
| </tr> |
| <tr> |
| <td>\${'hello'} wo\${'rld'}</td> |
| <td>String</td> |
| <td><my:values string="${'hello'} wo${'rld'}"/></td> |
| </tr> |
| <tr> |
| <td>\${1+2}.\${220}</td> |
| <td>Double</td> |
| <td><jsp:setProperty name="values" property="doubleValue" value="${1+2}.${220}"/>${values.doubleValue}</td> |
| </tr> |
| <tr> |
| <td>\${1+2}.\${220}</td> |
| <td>Double</td> |
| <td><my:values double="${1+2}.${220}"/></td> |
| </tr> |
| <tr> |
| <td>000\${1}\${7}</td> |
| <td>Long</td> |
| <td><jsp:setProperty name="values" property="longValue" value="000${1}${7}"/>${values.longValue}</td> |
| </tr> |
| <tr> |
| <td>000\${1}\${7}</td> |
| <td>Long</td> |
| <td><my:values long="000${1}${7}"/></td> |
| </tr> |
| <!-- |
| Undefined values are to be coerced to String, to be "", |
| https://bz.apache.org/bugzilla/show_bug.cgi?id=47413 |
| --> |
| <tr> |
| <td>\${undefinedFoo}hello world\${undefinedBar}</td> |
| <td>String</td> |
| <td><jsp:setProperty name="values" property="stringValue" value="${undefinedFoo}hello world${undefinedBar}"/>${values.stringValue}</td> |
| </tr> |
| <tr> |
| <td>\${undefinedFoo}hello world\${undefinedBar}</td> |
| <td>String</td> |
| <td><my:values string="${undefinedFoo}hello world${undefinedBar}"/></td> |
| </tr> |
| <tr> |
| <td>\${undefinedFoo}\${undefinedBar}</td> |
| <td>Double</td> |
| <td><jsp:setProperty name="values" property="doubleValue" value="${undefinedFoo}${undefinedBar}"/>${values.doubleValue}</td> |
| </tr> |
| <tr> |
| <td>\${undefinedFoo}\${undefinedBar}</td> |
| <td>Double</td> |
| <td><my:values double="${undefinedFoo}${undefinedBar}"/></td> |
| </tr> |
| <tr> |
| <td>\${undefinedFoo}\${undefinedBar}</td> |
| <td>Long</td> |
| <td><jsp:setProperty name="values" property="longValue" value="${undefinedFoo}${undefinedBar}"/>${values.longValue}</td> |
| </tr> |
| <tr> |
| <td>\${undefinedFoo}\${undefinedBar}</td> |
| <td>Long</td> |
| <td><my:values long="${undefinedFoo}${undefinedBar}"/></td> |
| </tr> |
| </table> |
| </code> |
| </blockquote> |
| </body> |
| </html> |
| |
