Axis.java 文件源码

public ObjectProperty<LocalDateTime> startProperty() {
    if (null == start) {
        start = new ObjectPropertyBase<LocalDateTime>(_start) {
            @Override protected void invalidated() {
                if (AxisType.DATE != getType()) { throw new IllegalArgumentException("Axis type has to be DATE"); }
                setMinValue(get().toEpochSecond(Helper.getZoneOffset()));
            }
            @Override public Object getBean() { return Axis.this; }
            @Override public String getName() { return "start"; }
        };
        _start = null;
    }
    return start;
}