jaxx.compiler.binding
Class DataBinding

java.lang.Object
  jaxx.compiler.binding.DataBinding

public class DataBinding
extends java.lang.Object

Represents a data binding in a JAXX file. DataBinding uses DataSource to track changes to a source expression and update the destination.

Field Summary

protected static org.apache.commons.logging.Log

log Logger

Constructor Summary

DataBinding(java.lang.String source, java.lang.String id, java.lang.String assignment)
Creates a new data binding.

Method Summary

boolean	compile(JAXXCompiler compiler, boolean quickNoDependencies) Compiles the data binding expression.
java.lang.String	getId()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

log

protected static final org.apache.commons.logging.Log log

Logger

Constructor Detail

DataBinding

public DataBinding(java.lang.String source,
                   java.lang.String id,
                   java.lang.String assignment)

Creates a new data binding.

Parameters:

source - the Java source code for the data binding expression

id - the data binding destination in the form id.propertyName

assignment - Java snippet which will cause the destination property to be updated with the current value of the binding

Method Detail

getId

public java.lang.String getId()

compile

public boolean compile(JAXXCompiler compiler,
                       boolean quickNoDependencies)
                throws CompilerException

Compiles the data binding expression. This method calls methods in JAXXCompiler to add the Java code that performs the data binding setup.

Parameters:

compiler - compiler which includes the data binding

quickNoDependencies - true to optimize bindings with no dependencies by simply running them at startup time

Returns:

true if the expression has dependencies, false otherwise

Throws:

CompilerException - if a compilation error occurs