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Java Source Code / Java Documentation » ERP CRM Financial » SourceTap CRM » org.ofbiz.rules.parse 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.ofbiz.rules.parse.Assembly

All known Subclasses:   org.ofbiz.rules.parse.tokens.TokenAssembly,  org.ofbiz.rules.parse.chars.CharacterAssembly,
Assembly
abstract public class Assembly implements Enumeration,PubliclyCloneable(Code)

Title: Assembly

Description: None

Copyright (c) 1999 Steven J. Metsker.

Copyright (c) 2001 The Open For Business Project - www.ofbiz.org

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

An assembly maintains a stream of language elements along with stack and target objects. Parsers use assemblers to record progress at recognizing language elements from assembly's string.
author:
   Steven J. Metsker
version:
   1.0



Field Summary
protected  intindex
    
protected  Stackstack
    
protected  PubliclyCloneabletarget
     Another place to record progress; this is just an object. If a parser were recognizing an HTML page, for example, it might create a Page object early, and store it as an assembly's "target".


Method Summary
public  Objectclone()
     Return a copy of this object.
abstract public  Stringconsumed(String delimiter)
     Returns the elements of the assembly that have been consumed, separated by the specified delimiter.
abstract public  StringdefaultDelimiter()
     Returns the default string to show between elements.
public  intelementsConsumed()
     Returns the number of elements that have been consumed.
public  intelementsRemaining()
     Returns the number of elements that have not been consumed.
public  StackgetStack()
     Removes this assembly's stack.
public  ObjectgetTarget()
     Returns the object identified as this assembly's "target". Clients can set and retrieve a target, which can be a convenient supplement as a place to work, in addition to the assembly's stack.
public  booleanhasMoreElements()
     Returns true if this assembly has unconsumed elements.
abstract public  intlength()
     Returns the number of elements in this assembly.
abstract public  Objectpeek()
    
public  Objectpop()
     Removes the object at the top of this assembly's stack and returns it.
public  voidpush(Object o)
     Pushes an object onto the top of this assembly's stack.
abstract public  Stringremainder(String delimiter)
     Returns the elements of the assembly that remain to be consumed, separated by the specified delimiter.
public  voidsetTarget(PubliclyCloneable target)
     Sets the target for this assembly.
public  booleanstackIsEmpty()
     Returns true if this assembly's stack is empty.
public  StringtoString()
     Returns a textual description of this assembly.
public  voidunget(int n)
    

Field Detail
index
protected int index(Code)
which element is next



stack
protected Stack stack(Code)
a place to keep track of consumption progress



target
protected PubliclyCloneable target(Code)
Another place to record progress; this is just an object. If a parser were recognizing an HTML page, for example, it might create a Page object early, and store it as an assembly's "target". As its recognition of the HTML progresses, it could use the stack to build intermediate results, like a heading, and then apply them to the target object.





Method Detail
clone
public Object clone()(Code)
Return a copy of this object. a copy of this object



consumed
abstract public String consumed(String delimiter)(Code)
Returns the elements of the assembly that have been consumed, separated by the specified delimiter.
Parameters:
  String - the mark to show between consumedelements the elements of the assembly that have beenconsumed



defaultDelimiter
abstract public String defaultDelimiter()(Code)
Returns the default string to show between elements. the default string to show between elements



elementsConsumed
public int elementsConsumed()(Code)
Returns the number of elements that have been consumed. the number of elements that have been consumed



elementsRemaining
public int elementsRemaining()(Code)
Returns the number of elements that have not been consumed. the number of elements that have not beenconsumed



getStack
public Stack getStack()(Code)
Removes this assembly's stack. this assembly's stack



getTarget
public Object getTarget()(Code)
Returns the object identified as this assembly's "target". Clients can set and retrieve a target, which can be a convenient supplement as a place to work, in addition to the assembly's stack. For example, a parser for an HTML file might use a web page object as its "target". As the parser recognizes markup commands like , it could apply its findings to the target. the target of this assembly



hasMoreElements
public boolean hasMoreElements()(Code)
Returns true if this assembly has unconsumed elements. true, if this assembly has unconsumed elements



length
abstract public int length()(Code)
Returns the number of elements in this assembly. the number of elements in this assembly



peek
abstract public Object peek()(Code)
Shows the next object in the assembly, without removing it the next object



pop
public Object pop()(Code)
Removes the object at the top of this assembly's stack and returns it. the object at the top of this assembly's stack
exception:
  EmptyStackException - if this stack is empty



push
public void push(Object o)(Code)
Pushes an object onto the top of this assembly's stack.
Parameters:
  object - the object to be pushed



remainder
abstract public String remainder(String delimiter)(Code)
Returns the elements of the assembly that remain to be consumed, separated by the specified delimiter.
Parameters:
  String - the mark to show between unconsumedelements the elements of the assembly that remain to beconsumed



setTarget
public void setTarget(PubliclyCloneable target)(Code)
Sets the target for this assembly. Targets must implement clone() as a public method.
Parameters:
  target - a publicly cloneable object



stackIsEmpty
public boolean stackIsEmpty()(Code)
Returns true if this assembly's stack is empty. true, if this assembly's stack is empty



toString
public String toString()(Code)
Returns a textual description of this assembly. a textual description of this assembly



unget
public void unget(int n)(Code)
Put back n objects



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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