Application: gvSIG desktop

package org.gvsig.expressionevaluator;

import org.gvsig.tools.persistence.Persistent;

/**

 *

 * @author jjdelcerro

 */

public interface Expression extends Persistent, Cloneable {

    public void clear();

    /**

     * This symbol table don't persist with the expression.

     * 

     * @return the symbol table of the expression

     */

    public SymbolTable getSymbolTable();

    public String getPhrase();

    public Expression setPhrase(String phrase);

    public Object execute(SymbolTable symbolTable);

    public void link(SymbolTable symbolTable);    

    public Code getCode();

    public String toJSON();

    public void fromJSON(String json);

    public Expression clone() throws CloneNotSupportedException;

    public boolean isPhraseEmpty();

    public boolean isEmpty();

    public void setSQLCompatible(boolean sqlCompatible);

    public boolean isSQLCompatible();

    public void setUseBracketsForIdentifiers(boolean useBracketsForIdentifiers);

    public boolean getUseBracketsForIdentifiers();

}