Apache Ant Core 1.10.14 · org.apache.tools.ant.PropertyHelper

Modifier and Type	Class and Description
public static interface	PropertyHelper.Delegate Marker interface for a PropertyHelper delegate.
public static interface	PropertyHelper.PropertyEnumerator Obtains the names of all known properties.
public static interface	PropertyHelper.PropertyEvaluator Looks up a property's value based on its name.
public static interface	PropertyHelper.PropertySetter Sets or overrides a property.

Modifier and Type	Field and Description
private static final PropertyExpander	DEFAULT_EXPANDER
private final Hashtable<Class<? extends PropertyHelper.Delegate>, List<PropertyHelper.Delegate>>	delegates
private static final PropertyHelper.PropertyEvaluator	FROM_REF
private final Hashtable<String, Object>	inheritedProperties Map of inherited "user" properties - that are those "user" properties that have been created by tasks and not been set from the command line or a GUI tool.
private PropertyHelper	next
private Project	project
private final Hashtable<String, Object>	properties Project properties map (usually String to String).
private static final PropertyExpander	SKIP_DOUBLE_DOLLAR dummy
private static final PropertyHelper.PropertyEvaluator	TO_STRING
private final Hashtable<String, Object>	userProperties Map of "user" properties (as created in the Ant task, for example).

Access	Constructor and Description
protected	PropertyHelper() Default constructor.

Method Summary

Modifier and Type	Method and Description
public void	add(PropertyHelper.Delegate the delegate to add. delegate) Add the specified delegate object to this PropertyHelper.
public boolean	Returns: `true` if `value` contains property notation. containsProperties(String the String to check. value) Learn whether a String contains replaceable properties.
public void	copyInheritedProperties(Project the project to copy the properties to. Must not be null. other) Copies all user properties that have not been set on the command line or a GUI tool from this instance to the Project instance given as the argument.
public void	copyUserProperties(Project the project to copy the properties to. Must not be null. other) Copies all user properties that have been set on the command line or a GUI tool from this instance to the Project instance given as the argument.
private boolean	Returns: boolean evalAsBooleanOrPropertyName(Object Object value) Returns true if the value can be interpreted as a true value or cannot be interpreted as a false value and a property of the value's name exists.
protected static Set<Class<? extends PropertyHelper.Delegate>>	Returns: Set<Class> getDelegateInterfaces(PropertyHelper.Delegate the Delegate to inspect. d) Get all Delegate interfaces (excluding Delegate itself) from the specified Delegate.
protected < desired type. D extends PropertyHelper.Delegate> List<D>	Returns: Collection. getDelegates(Class<D> delegate type. type) Get the Collection of delegates of the specified type.
public Collection<PropertyExpander>	Returns: the expanders. getExpanders() Get the `expanders`.
public Hashtable<String, Object>	Returns: a hashtable containing just the inherited properties getInheritedProperties() Returns a copy of the inherited property hashtable Does not contain properties held by implementations of delegates (like local properties).
protected Hashtable<String, Object>	Returns: the live hashtable inherited properties getInternalInheritedProperties() special back door for subclasses, internal access to the hashtables
protected Hashtable<String, Object>	Returns: the live hashtable of all properties getInternalProperties() special back door for subclasses, internal access to the hashtables
protected Hashtable<String, Object>	Returns: the live hashtable of user properties getInternalUserProperties() special back door for subclasses, internal access to the hashtables
public PropertyHelper	Returns: the next property helper. getNext() Deprecated use the delegate mechanism instead Get the next property helper in the chain.
public Project	Returns: Project getProject() Get this PropertyHelper's Project.
public Hashtable<String, Object>	Returns: a hashtable containing all properties (including user properties). getProperties() Returns a copy of the properties table.
public static Object	Returns: the value of the property if present, null otherwise. getProperty(Project the project in question. project, String the property name name) A helper static method to get a property from a particular project.
public Object	Returns: the property value, or `null` for no match or if a `null` name is provided. getProperty(String The namespace for the property (currently not used). ns, String The name of the property. May be `null`, in which case the return value is also `null`. name) Deprecated namespaces are unnecessary. Returns the value of a property, if it is set.
public Object	Returns: the property value, or `null` for no match or if a `null` name is provided. getProperty(String The name of the property. May be `null`, in which case the return value is also `null`. name) Implements org.apache.tools.ant.property.GetProperty.getProperty. Returns the value of a property, if it is set.
public static synchronized PropertyHelper	Returns: the project's property helper. getPropertyHelper(Project the project for which the property helper is required. project) Factory method to create a property processor.
public Object	Returns: The property, if returned by a hook, or null if none. getPropertyHook(String namespace of the sought property. ns, String name of the sought property. name, boolean True if this is a user property. user) Deprecated PropertyHelper chaining is deprecated. Get a property.
public Set<String>	Returns: the names of all known properties. getPropertyNames() Returns the names of all known properties.
public Hashtable<String, Object>	Returns: a hashtable containing just the user properties getUserProperties() Returns a copy of the user property hashtable Does not contain properties held by implementations of delegates (like local properties).
public Object	Returns: the property value, or `null` for no match or if a `null` name is provided. getUserProperty(String The namespace for the property (currently not used). ns, String The name of the property. May be `null`, in which case the return value is also `null`. name) Deprecated namespaces are unnecessary. Returns the value of a user property, if it is set.
public Object	Returns: the property value, or `null` for no match or if a `null` name is provided. getUserProperty(String The name of the property. May be `null`, in which case the return value is also `null`. name) Returns the value of a user property, if it is set.
private static boolean	Returns: boolean nullOrEmpty(Object Object value) Returns true if the object is null or an empty string.
public Object	Returns: the original string with the properties replaced, or `null` if the original string is `null`. parseProperties(String The string to be scanned for property references. May be `null`, in which case this method returns immediately with no effect. value) Decode properties from a String representation.
public void	parsePropertyString(String Text to parse. Must not be `null`. value, Vector<String> List to add text fragments to. Must not be `null`. fragments, Vector<String> List to add property names to. Must not be `null`. propertyRefs) Deprecated use the other mechanisms of this class instead Parses a string containing `${xxx}` style property references into two lists.
pack-priv static void	parsePropertyStringDefault(String value, Vector<String> fragments, Vector<String> propertyRefs) Default parsing method.
public String	Returns: the original string with the properties replaced, or `null` if the original string is `null`. replaceProperties(String The namespace for the property. ns, String The string to be scanned for property references. May be `null`, in which case this method returns immediately with no effect. value, Hashtable<String, Object> Mapping (String to Object) of property names to their values. If `null`, only project properties will be used. keys) Replaces `${xxx}` style constructions in the given value with the string value of the corresponding data types.
public String	Returns: the original string with the properties replaced, or `null` if the original string is `null`. replaceProperties(String The string to be scanned for property references. May be `null`, in which case this method returns immediately with no effect. value) Replaces `${xxx}` style constructions in the given value with the string value of the corresponding data types.
public void	setInheritedProperty(String The namespace for the property (currently not used). ns, String The name of property to set. Must not be `null`. name, Object The new value of the property. Must not be `null`. value) Deprecated namespaces are unnecessary. Sets an inherited user property, which cannot be overwritten by set/unset property calls.
public void	setInheritedProperty(String The name of property to set. Must not be `null`. name, Object The new value of the property. Must not be `null`. value) Sets an inherited user property, which cannot be overwritten by set/unset property calls.
public static void	setNewProperty(Project the project in question. project, String the property name name, Object the value to use. value) A helper static method to set a new property from a particular project.
public void	setNewProperty(String The namespace for the property (currently not used). ns, String The name of property to set. Must not be `null`. name, Object The new value of the property. Must not be `null`. value) Deprecated namespaces are unnecessary. Sets a property if no value currently exists.
public void	setNewProperty(String The name of property to set. Must not be `null`. name, Object The new value of the property. Must not be `null`. value) Sets a property if no value currently exists.
public void	setNext(PropertyHelper the next property helper in the chain. next) Deprecated use the delegate mechanism instead Prior to Ant 1.8.0 there have been 2 ways to hook into property handling: - you can replace the main PropertyHelper.
public void	setProject(Project the project instance. p) Set the project for which this helper is performing property resolution.
public static void	setProperty(Project the project in question. project, String the property name name, Object the value to use. value) A helper static method to set a property from a particular project.
public boolean	Returns: true if the property is set. setProperty(String The namespace for the property (currently not used). ns, String The name of the property. name, Object The value to set the property to. value, boolean If this is true output extra log messages. verbose) Deprecated namespaces are unnecessary. Default implementation of setProperty.
public boolean	Returns: true if the property is set. setProperty(String The name of the property. name, Object The value to set the property to. value, boolean If this is true output extra log messages. verbose) Default implementation of setProperty.
public boolean	Returns: true if this helper has stored the property, false if it couldn't. Each helper should delegate to the next one (unless it has a good reason not to). setPropertyHook(String The namespace that the property is in (currently not used. ns, String The name of property to set. Must not be `null`. name, Object The new value of the property. Must not be `null`. value, boolean True if this property is inherited (an [sub]ant[call] property). inherited, boolean True if this property is a user property. user, boolean True is this is a new property. isNew) Deprecated PropertyHelper chaining is deprecated. Sets a property.
public void	setUserProperty(String The namespace for the property (currently not used). ns, String The name of property to set. Must not be `null`. name, Object The new value of the property. Must not be `null`. value) Deprecated namespaces are unnecessary. Sets a user property, which cannot be overwritten by set/unset property calls.
public void	setUserProperty(String The name of property to set. Must not be `null`. name, Object The new value of the property. Must not be `null`. value) Sets a user property, which cannot be overwritten by set/unset property calls.
public boolean	Returns: boolean testIfCondition(Object Object value) Returns true if the value is null or an empty string, can be interpreted as a true value or cannot be interpreted as a false value and a property of the value's name exists.
public boolean	Returns: boolean testUnlessCondition(Object Object value) Returns true if the value is null or an empty string, can be interpreted as a false value or cannot be interpreted as a true value and a property of the value's name doesn't exist.
public static Boolean	Returns: Boolean toBoolean(Object Object value) If the given object can be interpreted as a true/false value, turn it into a matching Boolean - otherwise return null.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

public Class PropertyHelper

Nested and Inner Type Summary

Field Summary

Constructor Summary

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