4.6.2.2. StringBridge
Use the
org.infinispan.query.bridge.StringBridge interface to provide the Lucene-based Query API with an implementation of the expected Object to String bridge, or StringBridge. All implementations are used concurrently, and therefore must be thread-safe.
Example 4.14. Custom StringBridge implementation
/** * Padding Integer bridge. * All numbers will be padded with 0 to match 5 digits * * @author Emmanuel Bernard */ public class PaddedIntegerBridge implements StringBridge { private int PADDING = 5; public String objectToString(Object object) { String rawInteger = ( (Integer) object ).toString(); if (rawInteger.length() > PADDING) throw new IllegalArgumentException( "Try to pad on a number too big" ); StringBuilder paddedInteger = new StringBuilder( ); for ( int padIndex = rawInteger.length() ; padIndex < PADDING ; padIndex++ ) { paddedInteger.append('0'); } return paddedInteger.append( rawInteger ).toString(); } }
The
@FieldBridge annotation allows any property or field in the provided example to use the bridge:
@FieldBridge(impl = PaddedIntegerBridge.class)
private Integer length;