public ValueExpression createValueExpression(
ELContext context, String expression, Class expectedType) {
if (expectedType == null) {
throw new NullPointerException(MessageFactory.get("error.value.expectedType"));
}
ExpressionBuilder builder = new ExpressionBuilder(expression, context);
return builder.createValueExpression(expectedType);
}
public MethodExpression createMethodExpression(
ELContext context, String expression, Class expectedReturnType, Class[] expectedParamTypes) {
ExpressionBuilder builder = new ExpressionBuilder(expression, context);
MethodExpression me = builder.createMethodExpression(expectedReturnType, expectedParamTypes);
if (expectedParamTypes == null && !me.isParmetersProvided()) {
throw new NullPointerException(MessageFactory.get("error.method.nullParms"));
}
return me;
}
/**
* @return
* @throws ELException
*/
private Node getNode() throws ELException {
if (this.node == null) {
this.node = ExpressionBuilder.createNode(this.expr);
}
return this.node;
}