1 files changed, 105 insertions, 0 deletions
diff --git a/project/JavaCommon/src/com/modulus/dataread/expressions/Statement.java b/project/JavaCommon/src/com/modulus/dataread/expressions/Statement.java
new file mode 100644
index 0000000..27df480
--- /dev/null
+++ b/project/JavaCommon/src/com/modulus/dataread/expressions/Statement.java
@@ -0,0 +1,105 @@
+package com.modulus.dataread.expressions;
+
+/**
+ * This interface is used to store interpreted
+ * information from a text file in a way that
+ * most represents a tree. for easy parsing
+ * for an interpreter or compiler.
+ * 
+ * @author jrahm
+ *
+ */
+public interface Statement {
+	
+	/**
+	 * Returns the child statements of this class
+	 * 
+	 * @return the child statements of this class
+	 */
+	Statement[] getChildren();
+	
+	/**
+	 * Adds a child statement to this Statement
+	 * 
+	 * @param child the child statement to add
+	 */
+	void addChild(Statement child);
+	
+	/**
+	 * Removes a child statement from this Statement object
+	 * 
+	 * @param child this child to remove from this statement
+	 */
+	void removeChild(Statement child);
+
+	/**
+	 * Sets the header for this statement object
+	 * 
+	 * @param header the header for this statement.
+	 */
+	void setHeader(String header);
+
+	/**
+	 * returns the header for this statement object
+	 * @return
+	 */
+	String getHeader();
+	
+	/**
+	 * side effect method to get nicely formatted printouts
+	 * of the statement class.
+	 * @param recur
+	 * @return
+	 */
+	String toString( int recur );
+	
+	/**
+	 * Returns the child of this Statement that has
+	 * the header <code>header</code>. If there is no
+	 * child with that header, then the method should
+	 * then return <code>null</code>. If there are multiple
+	 * children with the same header, then the first one should
+	 * be returned. If all children with that header should be
+	 * returned, then use the <code>getChildrenByHeader</code> method.
+	 * 
+	 * @param header the header of the child to return
+	 * @return a child with the header <code>header</code>
+	 */
+	Statement getChildByHeader(String header);
+	
+	/**
+	 * Returns an array of children of this Statement that have
+	 * the header <code>header</code>. If no children have that header,
+	 * then an empty array is returned.
+	 * 
+	 * @param header the header of the children to return.
+	 * @return an array of children that have the header <code>header</code>
+	 */
+	Statement[] getChildrenByHeader(String header);
+	
+	/**
+	 * Returns the line number that this statement starts on.
+	 * @return the line number that this statement starts on.
+	 */
+	int getLineNumber();
+	
+	/**
+	 * Sets the line number that this statement
+	 * starts on.
+	 * 
+	 * @param line the line this statement starts on.
+	 */
+	void setLineNumber(int line);
+	
+	/**
+	 * Returns true if this statement has children, false otherwise.
+	 * 
+	 * @return true if this statement has children.
+	 */
+	boolean hasChildren();
+	
+	/**
+	 * Deletes all children from this statement
+	 */
+	void clearChildren();
+}
+\ No newline at end of file