org.apache.jackrabbit.oak.plugins.tree

Class TreeUtil

java.lang.Object

org.apache.jackrabbit.oak.plugins.tree.TreeUtil

public final class TreeUtil
extends java.lang.Object

Utility providing common operations for the Tree that are not provided by the API.

Method Summary

Modifier and Type	Method and Description
static @NotNull Tree	addChild(@NotNull Tree tree, @NotNull java.lang.String childName, @NotNull java.lang.String primaryTypeName) Adds a new child tree with the given name and primary type name.
static Tree	addChild(@NotNull Tree parent, @NotNull java.lang.String name, @Nullable java.lang.String typeName, @NotNull Tree typeRoot, @Nullable java.lang.String userID)
static void	addMixin(@NotNull Tree tree, @NotNull java.lang.String mixinName, @NotNull Tree typeRoot, @Nullable java.lang.String userID)
static void	autoCreateItems(@NotNull Tree tree, @NotNull Tree type, @NotNull Tree typeRoot, @Nullable java.lang.String userID)
static PropertyState	autoCreateProperty(@NotNull java.lang.String name, @NotNull Tree definition, @Nullable java.lang.String userID)
static java.lang.String	findDefaultPrimaryType(Tree definitions, boolean sns)
static boolean	getBoolean(@NotNull Tree tree, @NotNull java.lang.String propertyName) Returns the boolean representation of the property with the specified propertyName.
static java.lang.String	getDefaultChildType(Tree typeRoot, Tree parent, java.lang.String childName) Finds the default primary type for a new child node with the given name.
static java.util.List<Tree>	getEffectiveType(Tree tree, Tree typeRoot) Returns the effective node types of the given node.
static long	getLong(@NotNull Tree tree, @NotNull java.lang.String name, long defaultValue)
static @NotNull java.lang.Iterable<java.lang.String>	getMixinTypeNames(@NotNull Tree tree)
static @NotNull java.lang.Iterable<java.lang.String>	getMixinTypeNames(@NotNull Tree tree, @NotNull LazyValue<Tree> readOnlyTree)
static @Nullable java.lang.String	getName(@NotNull Tree tree, @NotNull java.lang.String name)
static @NotNull java.lang.Iterable<java.lang.String>	getNames(@NotNull Tree tree, @NotNull java.lang.String name)
static @NotNull Tree	getOrAddChild(@NotNull Tree tree, @NotNull java.lang.String childName, @NotNull java.lang.String primaryTypeName) Combination of Tree.getChild(String) and adding a child including its jcr:primaryType property (i.e.
static @Nullable java.lang.String	getPrimaryTypeName(@NotNull Tree tree)
static @Nullable java.lang.String	getPrimaryTypeName(@NotNull Tree tree, @NotNull LazyValue<Tree> readOnlyTree)
static @Nullable java.lang.String	getString(@NotNull Tree tree, @NotNull java.lang.String propertyName)
static @Nullable java.lang.String	getString(@NotNull Tree tree, @NotNull java.lang.String name, @Nullable java.lang.String defaultValue)
static @Nullable java.lang.Iterable<java.lang.String>	getStrings(@NotNull Tree tree, @NotNull java.lang.String propertyName)
static @Nullable Tree	getTree(@NotNull Tree tree, @NotNull java.lang.String path) Return the possibly non existing tree located at the passed path from the location of the start tree or null if path results in a parent of the root.
static boolean	isNodeType(Tree tree, java.lang.String typeName, Tree typeRoot)
static boolean	isReadOnlyTree(@NotNull Tree tree) Returns true if the specified tree is a read-only tree..

Methods inherited from class java.lang.Object

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

Method Detail

getPrimaryTypeName

@Nullable
public static @Nullable java.lang.String getPrimaryTypeName(@NotNull
                                                                      @NotNull Tree tree)

getPrimaryTypeName

@Nullable
public static @Nullable java.lang.String getPrimaryTypeName(@NotNull
                                                                      @NotNull Tree tree,
                                                                      @NotNull
                                                                      @NotNull LazyValue<Tree> readOnlyTree)

getMixinTypeNames

@NotNull
public static @NotNull java.lang.Iterable<java.lang.String> getMixinTypeNames(@NotNull
                                                                                       @NotNull Tree tree)

getMixinTypeNames

@NotNull
public static @NotNull java.lang.Iterable<java.lang.String> getMixinTypeNames(@NotNull
                                                                                       @NotNull Tree tree,
                                                                                       @NotNull
                                                                                       @NotNull LazyValue<Tree> readOnlyTree)

getStrings

@Nullable
public static @Nullable java.lang.Iterable<java.lang.String> getStrings(@NotNull
                                                                                  @NotNull Tree tree,
                                                                                  @NotNull
                                                                                  @NotNull java.lang.String propertyName)

getString

@Nullable
public static @Nullable java.lang.String getString(@NotNull
                                                             @NotNull Tree tree,
                                                             @NotNull
                                                             @NotNull java.lang.String propertyName)

getString

@Nullable
public static @Nullable java.lang.String getString(@NotNull
                                                             @NotNull Tree tree,
                                                             @NotNull
                                                             @NotNull java.lang.String name,
                                                             @Nullable
                                                             @Nullable java.lang.String defaultValue)

getBoolean

public static boolean getBoolean(@NotNull
                                 @NotNull Tree tree,
                                 @NotNull
                                 @NotNull java.lang.String propertyName)

Returns the boolean representation of the property with the specified propertyName. If the property does not exist or is an array this method returns false.

Parameters:

tree - The target tree.

propertyName - The name of the property.

Returns:

the boolean representation of the property state with the given name. This utility returns false if the property does not exist or is an multivalued property.

getName

@Nullable
public static @Nullable java.lang.String getName(@NotNull
                                                           @NotNull Tree tree,
                                                           @NotNull
                                                           @NotNull java.lang.String name)

getNames

@NotNull
public static @NotNull java.lang.Iterable<java.lang.String> getNames(@NotNull
                                                                              @NotNull Tree tree,
                                                                              @NotNull
                                                                              @NotNull java.lang.String name)

getLong

public static long getLong(@NotNull
                           @NotNull Tree tree,
                           @NotNull
                           @NotNull java.lang.String name,
                           long defaultValue)

getTree

@Nullable
public static @Nullable Tree getTree(@NotNull
                                               @NotNull Tree tree,
                                               @NotNull
                                               @NotNull java.lang.String path)

Return the possibly non existing tree located at the passed path from the location of the start tree or null if path results in a parent of the root.

Parameters:

tree - start tree

path - path from the start tree

Returns:

tree located at path from start or null

addChild

public static Tree addChild(@NotNull
                            @NotNull Tree parent,
                            @NotNull
                            @NotNull java.lang.String name,
                            @Nullable
                            @Nullable java.lang.String typeName,
                            @NotNull
                            @NotNull Tree typeRoot,
                            @Nullable
                            @Nullable java.lang.String userID)
                     throws RepositoryException

Throws:

RepositoryException

addChild

@NotNull
public static @NotNull Tree addChild(@NotNull
                                              @NotNull Tree tree,
                                              @NotNull
                                              @NotNull java.lang.String childName,
                                              @NotNull
                                              @NotNull java.lang.String primaryTypeName)
                                       throws AccessDeniedException

Adds a new child tree with the given name and primary type name. This method is a shortcut for calling Tree.addChild(String) and Tree.setProperty(String, Object, org.apache.jackrabbit.oak.api.Type) where the property name is JcrConstants.JCR_PRIMARYTYPE. Note, that this method in addition verifies if the created tree exists and is accessible in order to avoid IllegalStateException upon subsequent modification of the new child.

Parameters:

childName - The Oak name of the child item.

primaryTypeName - The Oak name of the primary node type.

Returns:

The new child tree with the specified name and primary type.

Throws:

AccessDeniedException - If the child does not exist after creation.

getOrAddChild

@NotNull
public static @NotNull Tree getOrAddChild(@NotNull
                                                   @NotNull Tree tree,
                                                   @NotNull
                                                   @NotNull java.lang.String childName,
                                                   @NotNull
                                                   @NotNull java.lang.String primaryTypeName)
                                            throws AccessDeniedException

Combination of Tree.getChild(String) and adding a child including its jcr:primaryType property (i.e. Tree.addChild(String) and Tree.setProperty(PropertyState)) in case no tree exists with the specified name.

Parameters:

childName - The Oak name of the child item.

primaryTypeName - The Oak name of the primary node type.

Returns:

The new child node with the specified name and primary type.

Throws:

AccessDeniedException - If the child does not exist after creation.

addMixin

public static void addMixin(@NotNull
                            @NotNull Tree tree,
                            @NotNull
                            @NotNull java.lang.String mixinName,
                            @NotNull
                            @NotNull Tree typeRoot,
                            @Nullable
                            @Nullable java.lang.String userID)
                     throws RepositoryException

Throws:

RepositoryException

autoCreateItems

public static void autoCreateItems(@NotNull
                                   @NotNull Tree tree,
                                   @NotNull
                                   @NotNull Tree type,
                                   @NotNull
                                   @NotNull Tree typeRoot,
                                   @Nullable
                                   @Nullable java.lang.String userID)
                            throws RepositoryException

Throws:

RepositoryException

autoCreateProperty

public static PropertyState autoCreateProperty(@NotNull
                                               @NotNull java.lang.String name,
                                               @NotNull
                                               @NotNull Tree definition,
                                               @Nullable
                                               @Nullable java.lang.String userID)

getDefaultChildType

public static java.lang.String getDefaultChildType(Tree typeRoot,
                                                   Tree parent,
                                                   java.lang.String childName)

Finds the default primary type for a new child node with the given name.

Parameters:

typeRoot - root of the /jcr:system/jcr:nodeTypes tree

parent - parent node

childName - name of the new child node

Returns:

name of the default type, or null if not available

getEffectiveType

public static java.util.List<Tree> getEffectiveType(Tree tree,
                                                    Tree typeRoot)

Returns the effective node types of the given node.

findDefaultPrimaryType

public static java.lang.String findDefaultPrimaryType(Tree definitions,
                                                      boolean sns)

isNodeType

public static boolean isNodeType(Tree tree,
                                 java.lang.String typeName,
                                 Tree typeRoot)

isReadOnlyTree

public static boolean isReadOnlyTree(@NotNull
                                     @NotNull Tree tree)

Returns true if the specified tree is a read-only tree..

Parameters:

tree - The tree object to be tested.

Returns:

true if the specified tree is an immutable read-only tree.

See Also:

ReadOnly