Class LambdaUtil

java.lang.Object

com.openhtmltopdf.util.LambdaUtil

public class LambdaUtil
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	LambdaUtil.DescendantContent

Constructor Summary

Constructors

Modifier	Constructor	Description
private	LambdaUtil()

Method Summary

Modifier and Type	Method	Description
static <T> Predicate<T>	alwaysFalse()
static <T> Predicate<T>	alwaysTrue()
static String	ancestorDump(Box bx)	Ancestor dump to string including starting box and referenced layers.
static Stream<Box>	ancestors(Box bx)	Null-safe way to look up the ancestor tree as a stream.
static String	boxDescription(Box box)	Null-safe box description including object id, layer, containing layer and impl class.
static String	descendantDump(Box root)	Creates an indented dump of the box tree.
private static void	descendantDump(Box parent, int indent, List<LambdaUtil.DescendantContent> out)
static Stream<Box>	descendants(Box parent)	A stream of all descendant boxes not including InlineText or InlineBox objects.
static List<Box>	descendantsList(Box parent)	See descendants(Box)
static String	layerDescription(Layer layer)	Null-safe layer description including object id, toString and master box description.
static String	objectId(Object obj)	Null-safe identity hash code.

Methods inherited from class Object

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

Constructor Details

LambdaUtil

private LambdaUtil()

Method Details

ancestors

public static Stream<Box> ancestors(Box bx)

Null-safe way to look up the ancestor tree as a stream. Does not include starting box. Will return a empty stream if either bx or bx.getParent() is null.

descendants

public static Stream<Box> descendants(Box parent)

A stream of all descendant boxes not including InlineText or InlineBox objects. This would usually only be called after layout is concluded as InlineBox objects are converted to one or more InlineLayoutBox during layout. Should be in breadth first order.

descendantsList

public static List<Box> descendantsList(Box parent)

See descendants(Box)

objectId

public static String objectId(Object obj)

Null-safe identity hash code. Debug only.

boxDescription

public static String boxDescription(Box box)

Null-safe box description including object id, layer, containing layer and impl class. Debug only.

layerDescription

public static String layerDescription(Layer layer)

Null-safe layer description including object id, toString and master box description. Debug only.

ancestorDump

public static String ancestorDump(Box bx)

Ancestor dump to string including starting box and referenced layers. Debug only.

descendantDump

private static void descendantDump(Box parent,
 int indent,
 List<LambdaUtil.DescendantContent> out)

descendantDump

public static String descendantDump(Box root)

Creates an indented dump of the box tree. Includes both the pre-layout inline-content and if layout has been run, the after layout structure. Debug only.

alwaysTrue

public static <T> Predicate<T> alwaysTrue()

alwaysFalse

public static <T> Predicate<T> alwaysFalse()