standup.joke
Class InstantiationConstraintLexemeSchema

java.lang.Object
  standup.joke.InstantiationConstraintLexeme
      standup.joke.InstantiationConstraintLexemeSchema

All Implemented Interfaces:

InstantiationConstraint, JokeConstraint

public class InstantiationConstraintLexemeSchema
extends InstantiationConstraintLexeme

An InstantiationConstraint that constrains a joke to make use of a specific Lexeme in its answer.

Author:

Ruli Manurung

Field Summary

Fields inherited from class standup.joke.InstantiationConstraintLexeme

lex

Constructor Summary

InstantiationConstraintLexemeSchema(Lexeme _lex)

Method Summary

String	getSQLConstraint(Clause s, List<SQLSelectElement> taqlsses) Returns an SQL code snippet that is to be appended to the WHERE clause of the SQL query when instantiating the given Clause.
String	toString()
boolean	validate(JokeStructure j) Returns true if the given JokeStructure satisfies this constraint, and false if not.

Methods inherited from class standup.joke.InstantiationConstraintLexeme

handleSchema

Methods inherited from class java.lang.Object

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

Constructor Detail

InstantiationConstraintLexemeSchema

public InstantiationConstraintLexemeSchema(Lexeme _lex)

Method Detail

getSQLConstraint

public String getSQLConstraint(Clause s,
                               List<SQLSelectElement> taqlsses)

Description copied from interface: InstantiationConstraint

Returns an SQL code snippet that is to be appended to the WHERE clause of the SQL query when instantiating the given Clause.

Specified by:

getSQLConstraint in interface InstantiationConstraint

Overrides:

getSQLConstraint in class InstantiationConstraintLexeme

Parameters:

s - the Clause being instantiated.

Returns:

-- the String to be appended to the WHERE clause. As a contract, we require that it appear between parentheses, e.g. "(...)" for readability purposes.

validate

public boolean validate(JokeStructure j)

Description copied from interface: JokeConstraint

Returns true if the given JokeStructure satisfies this constraint, and false if not.

Specified by:

validate in interface JokeConstraint

Overrides:

validate in class InstantiationConstraintLexeme

Parameters:

j - the JokeStructure being validated

Returns:

-- true if j satisfies this constraint, false otherwise.

toString

public String toString()

Overrides:

toString in class InstantiationConstraintLexeme