Java Doc for BooleanExpression.java in  » Development » JoSQL » org » josql » expressions » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Development » JoSQL » org.josql.expressions   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.josql.expressions.Expression       org.josql.expressions.ValueExpression          org.josql.expressions.BooleanExpression BooleanExpression public class BooleanExpression extends ValueExpression (Code) This class represents a "boolean" expression, either true or false. Constructor Summary public   BooleanExpression()      Method Summary public  Object evaluate(Object o, Query q)      Get the value of this boolean. Parameters:   o - The current object, not used in this method. Parameters:   q - The Query object, not used in this method. public  Class getExpectedReturnType(Query q)      Get the expected return type. Parameters:   q - The Query object. public  Object getValue(Object o, Query q)      Get the value of this boolean. Parameters:   o - The current object, not used in this method. Parameters:   q - The Query object, not used in this method. public  boolean hasFixedResult(Query q)      Always returns true since it represents a constant. Parameters:   q - The Query object. public  void init(Query q)      Init this expression. public  boolean isTrue(Object o, Query q)      Returns whether this expression is true or false. Parameters:   o - The current object, not used in this method. Parameters:   q - The Query object, not used in this method. public  void setValue(Boolean b)      public  String toString()      Returns a string version of this expression. Constructor Detail BooleanExpression public BooleanExpression()(Code) Method Detail evaluate public Object evaluate(Object o, Query q)(Code) Get the value of this boolean. Parameters:   o - The current object, not used in this method. Parameters:   q - The Query object, not used in this method. The value of this expression. getExpectedReturnType public Class getExpectedReturnType(Query q)(Code) Get the expected return type. Parameters:   q - The Query object. Always returns: java.lang.Boolean.TYPE. getValue public Object getValue(Object o, Query q)(Code) Get the value of this boolean. Parameters:   o - The current object, not used in this method. Parameters:   q - The Query object, not used in this method. The value of this expression. hasFixedResult public boolean hasFixedResult(Query q)(Code) Always returns true since it represents a constant. Parameters:   q - The Query object. true always. init public void init(Query q)(Code) Init this expression. Actually does nothing since it is a constant. Parameters:   q - The Query object. isTrue public boolean isTrue(Object o, Query q)(Code) Returns whether this expression is true or false. Parameters:   o - The current object, not used in this method. Parameters:   q - The Query object, not used in this method. The value of this expression. setValue public void setValue(Boolean b)(Code) toString public String toString()(Code) Returns a string version of this expression. Basically returns: true | false. A string version of this expression. Methods inherited from org.josql.expressions.ValueExpression abstract public Object evaluate(Object o, Query q) throws QueryExecutionException(Code)(Java Doc) public Object getValue(Object o, Query q) throws QueryExecutionException(Code)(Java Doc) Methods inherited from org.josql.expressions.Expression abstract public Class getExpectedReturnType(Query q) throws QueryParseException(Code)(Java Doc) abstract public Object getValue(Object o, Query q) throws QueryExecutionException(Code)(Java Doc) abstract public boolean hasFixedResult(Query q)(Code)(Java Doc) abstract public void init(Query q) throws QueryParseException(Code)(Java Doc) public boolean isBracketed()(Code)(Java Doc) abstract public boolean isTrue(Object o, Query q) throws QueryExecutionException(Code)(Java Doc) public void setBracketed(boolean v)(Code)(Java Doc) abstract public String toString()(Code)(Java Doc) 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)