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Java Source Code / Java Documentation » Report » pentaho report » org.jfree.report.function

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.jfree.report.function .ExpressionCollection

ExpressionCollection
public class ExpressionCollection implements Cloneable,Serializable(Code)
	Collects all expressions used in the report. There exist 2 states of the ExpressionCollection. In the first, modifiable state, expressions can be added to the collection. During the adding the expressions get initialized. An ExpressionCollection in this state is not able to connect to an DataRow. The second state is an immutable state of this collection, no expressions can be added or removed. This ReadOnlyExpressionCollection can be created by calling getCopy() on the first-state expression collection. The ReadOnlyExpressionCollection is able to connect to a DataRow. author: Thomas Morgner

Constructor Summary
public	ExpressionCollection() Creates a new expression collection (initially empty).
public	ExpressionCollection(Collection expressions) Creates a new expression collection, populated with the supplied expressions.

Method Summary
public void	add(Expression e) Adds an expression to the collection.
public void	addAll(Collection expressions) Adds all expressions contained in the given collection to this expression collection.
public Object	clone() Clones this expression collection and all expressions contained in the collection.
public Expression	get(String name) Returns the Expression with the specified name (or `null`). Parameters: name - the expression name (`null` not permitted).
public Expression	getExpression(int pos) Returns the expression on the given position in the list. Parameters: pos - the position in the list.
public List	getExpressionList() Returns the expressions contained in this collection as unmodifiable list.
public Expression[]	getExpressions() Return all expressions contained in this collection as array.
protected void	privateAdd(Expression e) Adds an expression to the collection.
public void	removeExpression(Expression e) Removes an expression from the collection.
public int	size() Returns the number of active expressions in this collection.

Constructor Detail

ExpressionCollection
public ExpressionCollection()(Code)
	Creates a new expression collection (initially empty).

ExpressionCollection
public ExpressionCollection(Collection expressions)(Code)
	Creates a new expression collection, populated with the supplied expressions. Parameters: expressions - a collection of expressions. throws: ClassCastException - if the collection does not contain Expressions

Method Detail

add
public void add(Expression e)(Code)
	Adds an expression to the collection. The expression is initialized before it is added to this collection. Parameters: e - the expression.

addAll
public void addAll(Collection expressions)(Code)
	Adds all expressions contained in the given collection to this expression collection. The expressions get initialized during the adding process. Parameters: expressions - the expressions to be added. throws: ClassCastException - if the collection does not contain expressions

clone
public Object clone() throws CloneNotSupportedException(Code)
	Clones this expression collection and all expressions contained in the collection. The clone. throws: CloneNotSupportedException - should never happen.

get
public Expression get(String name)(Code)
	Returns the Expression with the specified name (or `null`). Parameters: name - the expression name (`null` not permitted). The expression. throws: NullPointerException - if the name given is `null`.

getExpression
public Expression getExpression(int pos)(Code)
	Returns the expression on the given position in the list. Parameters: pos - the position in the list. the expression. throws: IndexOutOfBoundsException - if the given position is invalid

getExpressionList
public List getExpressionList()(Code)
	Returns the expressions contained in this collection as unmodifiable list. the expressions as list.

getExpressions
public Expression[] getExpressions()(Code)
	Return all expressions contained in this collection as array. the expressions as array.

privateAdd
protected void privateAdd(Expression e)(Code)
	Adds an expression to the collection. Parameters: e - the expression. throws: NullPointerException - if the given Expression is null.

removeExpression
public void removeExpression(Expression e)(Code)
	Removes an expression from the collection. Parameters: e - the expression. throws: NullPointerException - if the given Expression is null.

size
public int size()(Code)
	Returns the number of active expressions in this collection. the number of expressions in this collection

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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