com.ibm.etools.iseries.rse.util.clprompter
Class ClExpression

java.lang.Object
  com.ibm.etools.iseries.rse.util.clprompter.ClExpression

public class ClExpression
extends Object

Parses expressions into queriable components.

Since:

6.0

Field Summary

static int	ARITHMATIC
static int	CHARACTER
static String	Copyright
static int	LOGICAL
static int	POINTER
static int	RELATIONAL
static String	VALUE

Constructor Summary

ClExpression(String expression, String kwd, boolean checkBrackets)
One of the constructor for this class.

ClExpression(String expression, String kwd, int nestingLevel, boolean checkBrackets)
One of the constructors for this class.

Method Summary

int	getNestingLevel() retrieves the nesting level of the expression
Object	getParsedObject() Returns a simplified object that represents the parsed expression, can be one of ClVariable ClBuiltInExpression ClExpression String Long
int	getType() Retrieves the typeof this expression
void	setNestingLevel(int level) Sets the nesting level for the expression
String	toString() returns the string representation of this expression.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

Copyright

public static final String Copyright

See Also:

Constant Field Values

ARITHMATIC

public static final int ARITHMATIC

See Also:

Constant Field Values

LOGICAL

public static final int LOGICAL

See Also:

Constant Field Values

CHARACTER

public static final int CHARACTER

See Also:

Constant Field Values

RELATIONAL

public static final int RELATIONAL

See Also:

Constant Field Values

POINTER

public static final int POINTER

See Also:

Constant Field Values

VALUE

public static final String VALUE

See Also:

Constant Field Values

Constructor Detail

ClExpression

public ClExpression(String expression,
                    String kwd,
                    boolean checkBrackets)
             throws ClParseException,
                    ClSyntaxException

One of the constructor for this class.

Parameters:

expression - the expression to parse.

kwd - The parameter keyword that this expression belongs to (used in error messages)

checkBrackets - Whether or not outer brackets should be enforced.

Throws:

ClParseException - This exception is thrown if the value specified isn't an expression

ClSyntaxException - This exception is thrown if the expression specified has a syntax error.

ClExpression

public ClExpression(String expression,
                    String kwd,
                    int nestingLevel,
                    boolean checkBrackets)
             throws ClParseException,
                    ClSyntaxException

One of the constructors for this class.

Parameters:

expression - the expression to parse.

kwd - The parameter keyword that this expression belongs to (used in error messages)

nestingLevel - The nesting level of the expression.

checkBrackets - Whether or not outer brackets should be enforced.

Throws:

ClParseException - This exception is thrown if the value specified isn't an expression

ClSyntaxException - This exception is thrown if the expression specified has a syntax error.

Method Detail

getParsedObject

public Object getParsedObject()

Returns a simplified object that represents the parsed expression, can be one of

• ClVariable
• ClBuiltInExpression
• ClExpression
• String
• Long

Returns:

the object represented by this expression.

toString

public String toString()

returns the string representation of this expression.

Overrides:

toString in class Object

getType

public int getType()

Retrieves the typeof this expression

Returns:

One of: ARITHMATIC,CHARACTER,RELATIONAL,LOGICAL

getNestingLevel

public int getNestingLevel()

retrieves the nesting level of the expression

Returns:

the nesting level (1-5)

setNestingLevel

public void setNestingLevel(int level)

Sets the nesting level for the expression