FileDocCategorySizeDatePackage
DateValueTag.javaAPI DocExample3607Thu Jun 28 16:14:16 BST 2001com.ora.jsp.tags.sql.value

DateValueTag

public class DateValueTag extends ValueTag
This class is a custom action intended to be used in the body of a sqlQuery or an sqlUpdate action element. It adds the specified value to its parent's value list.
author
Hans Bergsten, Gefion software
version
1.0

Fields Summary
private Date
value
Constructors Summary
Methods Summary
public intdoEndTag()
Gets the value, specified by the value attribute, the stringValue attribute, the param attribute, or the name and property attributes, and adds it to the parent's value list. If the value is a String and a pattern attribute is specified, the String is converted into the appropriate type before being added to the parent's value list.

        if (stringValue != null) {
            value = toDate(stringValue, pattern);
        }
        else if (param != null) {
            String paramValue = getParameter(param);
            value = toDate(paramValue, pattern);
        }
        else if (name != null) {
            value = getDate(name, property, pattern);
        }
        ValueTagParent parent = 
            (ValueTagParent) findAncestorWithClass(this, ValueTagParent.class);
        if (parent == null) {
            throw new JspException("The sqlDateValue action is not " +
                "enclosed by a supported action type");
        }
        parent.addValue(new DateValue(value));
        return EVAL_PAGE;
private java.sql.DategetDate(java.lang.String beanName, java.lang.String propertyName, java.lang.String pattern)

        Date dateValue = null;
        Object bean = getBean(beanName);
        Method readMethod = getPropertyReadMethod(bean, propertyName);
        Class returnType = readMethod.getReturnType();
        Object value = getValue(bean, readMethod, propertyName);
        
        if (Date.class.isAssignableFrom(returnType)) {
            dateValue = (Date) value;
        }
        else if (String.class.isAssignableFrom(returnType)) {
            dateValue = toDate((String) value, pattern);
        }
        else {
            throw new JspException("Read method for the " + propertyName +
                " property in the bean named " + beanName + " is not of type " +
                " String or Date");
        }
        return dateValue;
public voidrelease()
Releases all instance variables.

        value = null;
        super.release();
public voidsetValue(java.util.Date value)
Sets the value property.

        // Convert the java.util.Date to a java.sql.Date
        this.value = new Date(value.getTime());
private java.sql.DatetoDate(java.lang.String stringValue, java.lang.String pattern)

        Date dateValue = null;
        try {
            java.util.Date date = StringFormat.toDate(stringValue, pattern);
            dateValue = new Date(date.getTime());
        }
        catch (ParseException e) {
            throw new JspException(stringValue + " can not be converted to " +
                " a Date using pattern: " + pattern + ". Message: " +
                e.getMessage());
        }
        return dateValue;