<%@ page import="org.apache.aries.samples.ariestrader.util.*,org.apache.aries.samples.ariestrader.api.*,org.apache.aries.samples.ariestrader.api.persistence.*" session="false" %> <%! int hitCount = 0; String initTime = new java.util.Date().toString(); TradeServicesManager tradeServicesManager = null; %> <% // setup some variables to work with later int someint1 = TradeConfig.rndInt(100) + 1; pageContext.setAttribute("someint1", new Integer(someint1)); int someint2 = TradeConfig.rndInt(100) + 1; pageContext.setAttribute("someint2", new Integer(someint2)); float somefloat1 = TradeConfig.rndFloat(100) + 1.0f; pageContext.setAttribute("somefloat1", new Float(somefloat1)); float somefloat2 = TradeConfig.rndFloat(100) + 1.0f; pageContext.setAttribute("somefloat2", new Float(somefloat2)); if (tradeServicesManager == null) { tradeServicesManager = TradeServiceUtilities.getTradeServicesManager(); } TradeServices tradeServices = tradeServicesManager.getTradeServices(); QuoteDataBean quoteData0=null, quoteData1=null, quoteData2=null, quoteData3=null; try { quoteData0 = tradeServices.getQuote(TradeConfig.rndSymbol()); quoteData1 = tradeServices.getQuote(TradeConfig.rndSymbol()); quoteData2 = tradeServices.getQuote(TradeConfig.rndSymbol()); quoteData3 = tradeServices.getQuote(TradeConfig.rndSymbol()); } catch (Exception e) { Log.error("PingJspEL.jsp exception", e); } pageContext.setAttribute("quoteData0", quoteData0); pageContext.setAttribute("quoteData1", quoteData1); pageContext.setAttribute("quoteData2", quoteData2); pageContext.setAttribute("quoteData3", quoteData3); QuoteDataBean quoteData[] = new QuoteDataBean[4]; quoteData[0] = quoteData0; quoteData[1] = quoteData1; quoteData[2] = quoteData2; quoteData[3] = quoteData3; pageContext.setAttribute("quoteData", quoteData); %>

PING JSP EL:
Init time: <%= initTime %>

Hit Count: <%= hitCount++ %>

someint1 = <%= someint1 %>
someint2 = <%= someint2 %>
somefloat1 = <%= somefloat1 %>
somefloat2 = <%= somefloat2 %>

EL Type EL Expressions Result
Integer Arithmetic \${someint1 + someint2 - someint1 * someint2 mod someint1} ${someint1 + someint2 - someint1 * someint2 mod someint1}
Floating Point Arithmetic \${somefloat1 + somefloat2 - somefloat1 * somefloat2 / somefloat1} ${somefloat1 + somefloat2 - somefloat1 * somefloat2 / somefloat1}
Logical Operations \${(someint1 < someint2) && (someint1 <= someint2) || (someint1 == someint2) && !Boolean.FALSE} ${(someint1 < someint2) && (someint1 <= someint2) || (someint1 == someint2) && !Boolean.FALSE}
Indexing Operations \${quoteData1.symbol}
\${quoteData[2].symbol}
\${quoteData3["symbol"]}
\${header["host"]}
\${header.host}
 ${quoteData1.symbol}
${quoteData[2].symbol}
${quoteData3["symbol"]}
${header["host"]}
${header.host}
Variable Scope Tests \${(quoteData0 == null) ? "null" : quoteData0}
\${(noSuchVariableAtAnyScope == null) ? "null" : noSuchVariableAtAnyScope} 		${(quoteData0 == null) ? "null" : quoteData0}
${(noSuchVariableAtAnyScope == null) ? "null" : noSuchVariableAtAnyScope}