---
type: "example"
title: "SearchParameter Example: searchparameter-example-constraint"
resource: "SearchParameter"
example: "searchparameter-example-constraint"
---
# SearchParameter Example: searchparameter-example-constraint

## Example XML



```xml
<?xml version="1.0" encoding="UTF-8"?>

<SearchParameter xmlns="http://hl7.org/fhir">
  <id value="example-constraint"/>
  <url value="http://hl7.org/fhir/SearchParameter/example-constraint"/>
  <name value="Exampleconstraint"/>
  <title value="example-constraint"/>
  <status value="draft"/>
  <experimental value="true"/>
  <publisher value="HL7 International / FHIR Infrastructure"/>
  <description value="Search Composition Bundle"/>
  <code value="example-constraint"/>
  <aliasCode value="constraint-example"/>
  <base value="Bundle"/>
  <type value="reference"/>
  <expression value="Bundle.entry[0].resource"/>
  <processingMode value="normal"/>
  <constraint value="Bundle.type = 'document' and Bundle.entry[0].resource is Composition"/>
  <target value="Composition"/>
</SearchParameter>
```