[XERCESJ-1091] xml validation performance bad when maxOccurs is big

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 2.0.0 [beta 4]
• Component/s: SAX
• Environment: Solaris 9
• Assignee: Unassigned
• Reporter: yiguang hu
• Created: 01/Aug/05 23:50
• Updated: 11/Aug/05 11:18
• Resolved: 11/Aug/05 11:18

Description

For the following schema, the validation of a XML file (with only one record) against this schema took several minutes. But if the maxOccurs="9999" change to maxOccurs="999", the validation takes 2 second. I was able to get around it by using "unbounded". Don't understand why 9999 could cause such a big differnce for validation.

....
<complexType name="MatListType">^M
<sequence>^M
<element name="MatItem" minOccurs="0" maxOccurs="9999">^M
<complexType>^M
<sequence>^M
<element name="SequenceNumber" type="wvd:A082_LIN_ITM_NO"/>^M
<element name="Material" type="sg:Material"/>^M
<element name="PONumber" type="sg:ReferenceNumber" minOccurs="0"/>^M
<element name="POItemNumber" type="wvd:A154_REF_NO" minOccurs="0"/>^M
<element name="Quantity" type="sg:QuantityC" minOccurs="0"/>^M
<element name="PackingQuantity" type="sg:QuantityC" minOccurs="0"/>^M
<element name="ContainerNumber" type="sg:ContainerInfo" minOccurs="0"/>^M
<element name="InvoiceNumber" type="sg:ReferenceNumber" minOccurs="0"/>^M
</sequence>^M
</complexType>^M
</element>^M
</sequence>^M
</complexType>^M
.....