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org.apache.tools.ant

Class Target

  • java.lang.Object
    • org.apache.tools.ant.Target
  • All Implemented Interfaces:
    TaskContainer
    Direct Known Subclasses:
    ExtensionPoint

    public class Target
extends java.lang.Object
implements TaskContainer
    Class to implement a target object with required parameters.

    If you are creating Targets programmatically, make sure you set the Location to a useful value. In particular all targets should have different location values.

    • Constructor Summary

      Constructors 
      Constructor and Description
      Target()
      Default constructor.
      Target(Target other)
      Cloning constructor.

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method and Description
      void addDataType(RuntimeConfigurable r)
      Adds the wrapper for a data type element to this target.
      void addDependency(java.lang.String dependency)
      Adds a dependency to this target.
      void addTask(Task task)
      Adds a task to this target.
      boolean dependsOn(java.lang.String other)
      Does this target depend on the named target?
      void execute()
      Executes the target if the "if" and "unless" conditions are satisfied.
      java.util.Enumeration<java.lang.String> getDependencies()
      Returns an enumeration of the dependencies of this target.
      java.lang.String getDescription()
      Returns the description of this target.
      java.lang.String getIf()
      Returns the "if" property condition of this target.
      Location getLocation()
      Get the location of this target's definition.
      java.lang.String getName()
      Returns the name of this target.
      Project getProject()
      Returns the project this target belongs to.
      Task[] getTasks()
      Returns the current set of tasks to be executed by this target.
      java.lang.String getUnless()
      Returns the "unless" property condition of this target.
      static java.util.List<java.lang.String> parseDepends(java.lang.String depends, java.lang.String targetName, java.lang.String attributeName) 
      void performTasks()
      Performs the tasks within this target (if the conditions are met), firing target started/target finished messages around a call to execute.
      void setDepends(java.lang.String depS)
      Sets the list of targets this target is dependent on.
      void setDescription(java.lang.String description)
      Sets the description of this target.
      void setIf(Condition condition)
      Same as setIf(String) but requires a Condition instance
      void setIf(java.lang.String property)
      Sets the "if" condition to test on execution.
      void setLocation(Location location)
      Sets the location of this target's definition.
      void setName(java.lang.String name)
      Sets the name of this target.
      void setProject(Project project)
      Sets the project this target belongs to.
      void setUnless(Condition condition)
      Same as setUnless(String) but requires a Condition instance
      void setUnless(java.lang.String property)
      Sets the "unless" condition to test on execution.
      java.lang.String toString()
      Returns the name of this target.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • Target

        public Target()
        Default constructor.

      • Target

        public Target(Target other)
        Cloning constructor.
        Parameters:
        other - the Target to clone.

    • Method Detail

      • setProject

        public void setProject(Project project)
        Sets the project this target belongs to.
        Parameters:
        project - The project this target belongs to. Must not be null.

      • getProject

        public Project getProject()
        Returns the project this target belongs to.
        Returns:
        The project this target belongs to, or null if the project has not been set yet.

      • setLocation

        public void setLocation(Location location)
        Sets the location of this target's definition.
        Parameters:
        location - Location
        Since:
        1.6.2

      • getLocation

        public Location getLocation()
        Get the location of this target's definition.
        Returns:
        Location
        Since:
        1.6.2

      • setDepends

        public void setDepends(java.lang.String depS)
        Sets the list of targets this target is dependent on. The targets themselves are not resolved at this time.
        Parameters:
        depS - A comma-separated list of targets this target depends on. Must not be null.

      • parseDepends

        public static java.util.List<java.lang.String> parseDepends(java.lang.String depends,
                                                            java.lang.String targetName,
                                                            java.lang.String attributeName)

      • setName

        public void setName(java.lang.String name)
        Sets the name of this target.
        Parameters:
        name - The name of this target. Should not be null.

      • getName

        public java.lang.String getName()
        Returns the name of this target.
        Returns:
        the name of this target, or null if the name has not been set yet.

      • addTask

        public void addTask(Task task)
        Adds a task to this target.
        Specified by:
        addTask in interface TaskContainer
        Parameters:
        task - The task to be added. Must not be null.

      • addDataType

        public void addDataType(RuntimeConfigurable r)
        Adds the wrapper for a data type element to this target.
        Parameters:
        r - The wrapper for the data type element to be added. Must not be null.

      • getTasks

        public Task[] getTasks()
        Returns the current set of tasks to be executed by this target.
        Returns:
        an array of the tasks currently within this target

      • addDependency

        public void addDependency(java.lang.String dependency)
        Adds a dependency to this target.
        Parameters:
        dependency - The name of a target this target is dependent on. Must not be null.

      • getDependencies

        public java.util.Enumeration<java.lang.String> getDependencies()
        Returns an enumeration of the dependencies of this target.
        Returns:
        an enumeration of the dependencies of this target (enumeration of String)

      • dependsOn

        public boolean dependsOn(java.lang.String other)
        Does this target depend on the named target?
        Parameters:
        other - the other named target.
        Returns:
        true if the target does depend on the named target
        Since:
        Ant 1.6

      • setIf

        public void setIf(java.lang.String property)
        Sets the "if" condition to test on execution. This is the name of a property to test for existence - if the property is not set, the task will not execute. The property goes through property substitution once before testing, so if property foo has value bar, setting the "if" condition to ${foo}_x will mean that the task will only execute if property bar_x is set.
        Parameters:
        property - The property condition to test on execution. May be null, in which case no "if" test is performed.

      • getIf

        public java.lang.String getIf()
        Returns the "if" property condition of this target.
        Returns:
        the "if" property condition or null if no "if" condition had been defined.
        Since:
        1.6.2

      • setUnless

        public void setUnless(java.lang.String property)
        Sets the "unless" condition to test on execution. This is the name of a property to test for existence - if the property is set, the task will not execute. The property goes through property substitution once before testing, so if property foo has value bar, setting the "unless" condition to ${foo}_x will mean that the task will only execute if property bar_x isn't set.
        Parameters:
        property - The property condition to test on execution. May be null, in which case no "unless" test is performed.

      • getUnless

        public java.lang.String getUnless()
        Returns the "unless" property condition of this target.
        Returns:
        the "unless" property condition or null if no "unless" condition had been defined.
        Since:
        1.6.2

      • setDescription

        public void setDescription(java.lang.String description)
        Sets the description of this target.
        Parameters:
        description - The description for this target. May be null, indicating that no description is available.

      • getDescription

        public java.lang.String getDescription()
        Returns the description of this target.
        Returns:
        the description of this target, or null if no description is available.

      • toString

        public java.lang.String toString()
        Returns the name of this target.
        Overrides:
        toString in class java.lang.Object
        Returns:
        the name of this target, or null if the name has not been set yet.

      • execute

        public void execute()
             throws BuildException
        Executes the target if the "if" and "unless" conditions are satisfied. Dependency checking should be done before calling this method, as it does no checking of its own. If either the "if" or "unless" test prevents this target from being executed, a verbose message is logged giving the reason. It is recommended that clients of this class call performTasks rather than this method so that appropriate build events are fired.
        Throws:
        BuildException - if any of the tasks fail or if a data type configuration fails.
        See Also:
        performTasks(), setIf(String), setUnless(String)

      • performTasks

        public final void performTasks()
        Performs the tasks within this target (if the conditions are met), firing target started/target finished messages around a call to execute.
        See Also:
        execute()
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