Package org.apache.jackrabbit.spi.commons.nodetype

Class PropertyDefinitionImpl

  • All Implemented Interfaces:
    ItemDefinition, PropertyDefinition
    public class PropertyDefinitionImpl
extends java.lang.Object
implements PropertyDefinition
    This class implements the PropertyDefinition interface. All method calls are delegated to the wrapped QPropertyDefinition, performing the translation from Names to JCR names (and vice versa) where necessary.

    • Constructor Detail

      • PropertyDefinitionImpl

        public PropertyDefinitionImpl​(QPropertyDefinition propDef,
                              NamePathResolver resolver,
                              ValueFactory valueFactory)
        Package private constructor
        Parameters:
        propDef - property definition
        resolver - the name-path resolver
        valueFactory - a value factory

    • Method Detail

      • unwrap

        public QPropertyDefinition unwrap()
        Returns the wrapped property definition.
        Returns:
        the wrapped property definition.

      • getDefaultValues

        public Value[] getDefaultValues()
        Gets the default value(s) of the property. These are the values that the property defined by this PropertyDefinition will be assigned if it is automatically created (that is, if ItemDefinition.isAutoCreated() returns true).

        This method returns an array of Value objects. If the property is multi-valued, then this array represents the full set of values that the property will be assigned upon being auto-created. Note that this could be the empty array. If the property is single-valued, then the array returned will be of size 1.

        If null is returned, then the property has no fixed default value. This does not exclude the possibility that the property still assumes some value automatically, but that value may be parametrized (for example, "the current date") and hence not expressible as a single fixed value. In particular, this must be the case if isAutoCreated returns true and this method returns null.

        Note that to indicate a null value for this attribute in a node type definition that is stored in content, the jcr:defaultValues property is simply removed (since null values for properties are not allowed.

        In implementations that support node type registration, if this PropertyDefinition object is actually a newly-created empty PropertyDefinitionTemplate, then this method will return null.

        Specified by:
        getDefaultValues in interface PropertyDefinition
        Returns:
        an array of Value objects.

      • getRequiredType

        public int getRequiredType()
        Gets the required type of the property. One of:
        • PropertyType.STRING
        • PropertyType.DATE
        • PropertyType.BINARY
        • PropertyType.DOUBLE
        • PropertyType.DECIMAL
        • PropertyType.LONG
        • PropertyType.BOOLEAN
        • PropertyType.NAME
        • PropertyType.PATH
        • PropertyType.URI
        • PropertyType.REFERENCE
        • PropertyType.WEAKREFERENCE
        • PropertyType.UNDEFINED
        PropertyType.UNDEFINED is returned if this property may be of any type.

        In implementations that support node type registration, if this PropertyDefinition object is actually a newly-created empty PropertyDefinitionTemplate, then this method will return PropertyType.STRING.

        Specified by:
        getRequiredType in interface PropertyDefinition
        Returns:
        an int constant member of PropertyType.

      • getValueConstraints

        public java.lang.String[] getValueConstraints()
        Gets the array of constraint strings. Each string in the array specifies a constraint on the value of the property. The constraints are OR-ed together, meaning that in order to be valid, the value must meet at least one of the constraints. For example, a constraint array of ["constraint1", "constraint2", "constraint3"] has the interpretation: "the value of this property must meet at least one of constraint1, constraint2 or constraint3".

        Reporting of value constraints is optional. An implementation may return null, indicating that value constraint information is unavailable (though a constraint may still exist).

        Returning an empty array, on the other hand, indicates that value constraint information is available and that no constraints are placed on this value.

        In the case of multi-value properties, the constraint string array returned applies to all the values of the property.

        The constraint strings themselves having differing formats and interpretations depending on the type of the property in question. The following describes the value constraint syntax for each property type:

        • STRING and URI: The constraint string is a regular expression pattern. For example the regular expression ".*" means "any string, including the empty string". Whereas a simple literal string (without any RE-specific meta-characters) like "banana" matches only the string "banana".
        • PATH: The constraint string is a JCR path with an optional "*" character after the last "/" character. For example, possible constraint strings for a property of type PATH include:
          1. "/myapp:products/myapp:televisions"
          2. "/myapp:products/myapp:televisions/"
          3. "/myapp:products/*"
          4. "myapp:products/myapp:televisions"
          5. "../myapp:televisions"
          6. "../myapp:televisions/*"
          The following principles apply:
          • The "*" means "matches descendants" not "matches any subsequent path". For example, /a/* does not match /a/../c. The constraint must match the normalized path.
          • Relative path constraint only match relative path values and absolute path constraints only match absolute path values.
          • A trailing "/" has no effect (hence, 1 and 2, above, are equivalent).
          • The trailing "*" character means that the value of the PATH property is restricted to the indicated subgraph (in other words any additional relative path can replace the "*"). For example, 3, above would allow /myapp:products/myapp:radios, /myapp:products/myapp:microwaves/X900, and so forth.
          • A constraint without a "*" means that the PATH property is restricted to that precise path. For example, 1, above, would allow only the value /myapp:products/myapp:televisions.
          • The constraint can indicate either a relative path or an absolute path depending on whether it includes a leading "/" character. 1 and 4, above for example, are distinct.
          • The string returned must reflect the namespace mapping in the current Session (i.e., the current state of the namespace registry overlaid with any session-specific mappings). Constraint strings for PATH properties should be stored in fully-qualified form (using the actual URI instead of the prefix) and then be converted to prefix form according to the current mapping upon the PropertyDefinition.getValueConstraints call.
        • NAME: The constraint string is a JCR name in prefix form. For example "myapp:products". No wildcards or other pattern matching are supported. As with PATH properties, the string returned must reflect the namespace mapping in the current Session. Constraint strings for NAME properties should be stored in fully-qualified form (using the actual URI instead of the prefix) and then be converted to prefix form according to the current mapping.
        • REFERENCE and WEAKREFERENCE: The constraint string is a JCR name in prefix form. This name is interpreted as a node type name and the REFERENCE or WEAKREFERENCE property is restricted to referring only to nodes that have at least the indicated node type. For example, a constraint of "mytype:document" would indicate that the property in question can only refer to nodes that have at least the node type mytype:document (assuming this was the only constraint returned in the array, recall that the array of constraints are to be ORed together). No wildcards or other pattern matching are supported. As with PATH properties, the string returned must reflect the namespace mapping in the current Session. Constraint strings for REFERENCE and WEAKREFERENCE properties should be stored by the implementation in fully-qualified form (using the actual URI instead of the prefix) and then be converted to prefix form according to the current mapping.
        • BOOLEAN: A constraint string can be either "true" or "false". In most cases getValueConstraints will return an empty array since placing a constraint on a BOOLEAN value does not usually make sense.
        The remaining types all have value constraints in the form of inclusive or exclusive ranges: i.e., "[min, max]", "(min, max)", "(min, max]" or "[min, max)". Where "[" and "]" indicate "inclusive", while "(" and ")" indicate "exclusive". A missing min or max value indicates no bound in that direction. For example [,5] means no minimum but a maximum of 5 (inclusive) while [,] means simply that any value will suffice, The meaning of the min and max values themselves differ between types as follows:
        • BINARY: min and max specify the allowed size range of the binary value in bytes.
        • DATE: min and max are dates specifying the allowed date range. The date strings must be in the ISO8601-compliant format: YYYY-MM-DDThh:mm:ss.sssTZD.
        • LONG, DOUBLE: min and max are numbers.
        In implementations that support node type registration, when specifying that a DATE, LONG or DOUBLE is constrained to be equal to some disjunctive set of constants, a string consisting of just the constant itself, "c" may be used as a shorthand for the standard constraint notation of "[c, c]", where c is the constant. For example, to indicate that particular LONG property is constrained to be one of the values 2, 4, or 8, the constraint string array {"2", "4", "8"} can be used instead of the standard notation, {"[2,2]", "[4,4]", "[8,8]"}. However, even if this shorthand is used on registration, the value returned by PropertyDefinition.getValueConstraints() will always use the standard notation.

        Because constraints are returned as an array of disjunctive constraints, in many cases the elements of the array can serve directly as a "choice list". This may, for example, be used by an application to display options to the end user indicating the set of permitted values.

        In implementations that support node type registration, if this PropertyDefinition object is actually a newly-created empty PropertyDefinitionTemplate, then this method will return null.

        Specified by:
        getValueConstraints in interface PropertyDefinition
        Returns:
        a String array.

      • isMultiple

        public boolean isMultiple()
        Reports whether this property can have multiple values. Note that the isMultiple flag is special in that a given node type may have two property definitions that are identical in every respect except for the their isMultiple status. For example, a node type can specify two string properties both called X, one of which is multi-valued and the other not. An example of such a node type is nt:unstructured.

        In implementations that support node type registration, if this PropertyDefinition object is actually a newly-created empty PropertyDefinitionTemplate, then this method will return false.

        Specified by:
        isMultiple in interface PropertyDefinition
        Returns:
        a boolean

      • isFullTextSearchable

        public boolean isFullTextSearchable()
        Description copied from interface: PropertyDefinition
        Returns true if this property is full-text searchable, meaning that its value is accessible through the full-text search function within a query.

        This attribute only takes effect if the node type holding the property definition has a queryable setting of true.

        In implementations that support node type registration, if this NodeTypeDefinition object is actually a newly-created empty NodeTypeTemplate, then this method will return an impementation- determined default value.

        Specified by:
        isFullTextSearchable in interface PropertyDefinition
        Returns:
        a boolean
        See Also:
        PropertyDefinition.isFullTextSearchable()

      • isQueryOrderable

        public boolean isQueryOrderable()
        Description copied from interface: PropertyDefinition
        Returns true if this property is query-orderable, meaning that query results may be ordered by this property using the order-by clause of a query.

        This attribute only takes effect if the node type holding the property definition has a queryable setting of true.

        In implementations that support node type registration, if this NodeTypeDefinition object is actually a newly-created empty NodeTypeTemplate, then this method will return an impementation- determined default value.

        Specified by:
        isQueryOrderable in interface PropertyDefinition
        Returns:
        a boolean
        See Also:
        PropertyDefinition.isQueryOrderable()

      • getDeclaringNodeType

        public NodeType getDeclaringNodeType()
        Gets the node type that contains the declaration of this ItemDefinition.

        In implementations that support node type registration an ItemDefinition object may be acquired (in the form of a NodeDefinitionTemplate or PropertyDefinitionTemplate) that is not attached to a live NodeType. In such cases this method returns null.

        Specified by:
        getDeclaringNodeType in interface ItemDefinition
        Returns:
        a NodeType object.

      • getName

        public java.lang.String getName()
        Gets the name of the child item. If "*", this ItemDefinition defines a residual set of child items. That is, it defines the characteristics of all those child items with names apart from the names explicitly used in other child item definitions.

        In implementations that support node type registration, if this ItemDefinition object is actually a newly-created empty PropertyDefinitionTemplate or NodeDefinitionTemplate, then this method will return null.

        Specified by:
        getName in interface ItemDefinition
        Returns:
        a String denoting the name or "*".

      • getOnParentVersion

        public int getOnParentVersion()
        Gets the OnParentVersion status of the child item. This governs what occurs (in implementations that support versioning) when the parent node of this item is checked-in. One of:
        • OnParentVersionAction.COPY
        • OnParentVersionAction.VERSION
        • OnParentVersionAction.IGNORE
        • OnParentVersionAction.INITIALIZE
        • OnParentVersionAction.COMPUTE
        • OnParentVersionAction.ABORT

        In implementations that support node type registration, if this ItemDefinition object is actually a newly-created empty PropertyDefinitionTemplate or NodeDefinitionTemplate, then this method will return OnParentVersionAction.COPY.

        Specified by:
        getOnParentVersion in interface ItemDefinition
        Returns:
        a int constant member of OnParentVersionAction.

      • isAutoCreated

        public boolean isAutoCreated()
        Reports whether the item is to be automatically created when its parent node is created. If true, then this ItemDefinition will necessarily not be a residual set definition but will specify an actual item name (in other words getName() will not return "*").

        An autocreated non-protected item must be created immediately when its parent node is created in the transient session space. Creation of autocreated non-protected items is never delayed until save.

        An autocreated protected item should be created immediately when its parent node is created in the transient session space. Creation of autocreated protected items should not be delayed until save, though doing so does not violate JCR compliance.

        In implementations that support node type registration, if this ItemDefinition object is actually a newly-created empty PropertyDefinitionTemplate or NodeDefinitionTemplate, then this method will return false.

        Specified by:
        isAutoCreated in interface ItemDefinition
        Returns:
        a boolean.

      • isMandatory

        public boolean isMandatory()
        Reports whether the item is mandatory. A mandatory item is one that, if its parent node exists, must also exist.

        This means that a mandatory single-value property must have a value (since there is no such thing a null value). In the case of multi-value properties this means that the property must exist, though it can have zero or more values.

        An attempt to save a node that has a mandatory child item without first creating that child item will throw a ConstraintViolationException on save.

        In implementations that support node type registration, if this ItemDefinition object is actually a newly-created empty PropertyDefinitionTemplate or NodeDefinitionTemplate, then this method will return false.

        An item definition cannot be both residual and mandatory.

        Specified by:
        isMandatory in interface ItemDefinition
        Returns:
        a boolean

      • isProtected

        public boolean isProtected()
        Reports whether the child item is protected. In level 2 implementations, a protected item is one that cannot be removed (except by removing its parent) or modified through the the standard write methods of this API (that is, Item.remove, Node.addNode, Node.setProperty and Property.setValue).

        A protected node may be removed or modified (in a level 2 implementation), however, through some mechanism not defined by this specification or as a side-effect of operations other than the standard write methods of the API.

        In implementations that support node type registration, if this ItemDefinition object is actually a newly-created empty PropertyDefinitionTemplate or NodeDefinitionTemplate, then this method will return false.

        Specified by:
        isProtected in interface ItemDefinition
        Returns:
        a boolean.

      • equals

        public boolean equals​(java.lang.Object o)
        Overrides:
        equals in class java.lang.Object

      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class java.lang.Object