/**
 * generated by Xtext 2.21.0
 */
package org.eclipse.viatra.solver.language.solverLanguage;


/**
 * <!-- begin-user-doc -->
 * A representation of the model object '<em><b>Predicate Definition</b></em>'.
 * <!-- end-user-doc -->
 *
 * <p>
 * The following features are supported:
 * </p>
 * <ul>
 *   <li>{@link org.eclipse.viatra.solver.language.solverLanguage.PredicateDefinition#getHead <em>Head</em>}</li>
 *   <li>{@link org.eclipse.viatra.solver.language.solverLanguage.PredicateDefinition#getBody <em>Body</em>}</li>
 *   <li>{@link org.eclipse.viatra.solver.language.solverLanguage.PredicateDefinition#isFunctional <em>Functional</em>}</li>
 *   <li>{@link org.eclipse.viatra.solver.language.solverLanguage.PredicateDefinition#isError <em>Error</em>}</li>
 * </ul>
 *
 * @see org.eclipse.viatra.solver.language.solverLanguage.SolverLanguagePackage#getPredicateDefinition()
 * @model
 * @generated
 */
public interface PredicateDefinition extends Statement {
	/**
	 * Returns the value of the '<em><b>Head</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the value of the '<em>Head</em>' containment reference.
	 * @see #setHead(Expression)
	 * @see org.eclipse.viatra.solver.language.solverLanguage.SolverLanguagePackage#getPredicateDefinition_Head()
	 * @model containment="true"
	 * @generated
	 */
	Expression getHead();

	/**
	 * Sets the value of the '{@link org.eclipse.viatra.solver.language.solverLanguage.PredicateDefinition#getHead <em>Head</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Head</em>' containment reference.
	 * @see #getHead()
	 * @generated
	 */
	void setHead(Expression value);

	/**
	 * Returns the value of the '<em><b>Body</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the value of the '<em>Body</em>' containment reference.
	 * @see #setBody(Expression)
	 * @see org.eclipse.viatra.solver.language.solverLanguage.SolverLanguagePackage#getPredicateDefinition_Body()
	 * @model containment="true"
	 * @generated
	 */
	Expression getBody();

	/**
	 * Sets the value of the '{@link org.eclipse.viatra.solver.language.solverLanguage.PredicateDefinition#getBody <em>Body</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Body</em>' containment reference.
	 * @see #getBody()
	 * @generated
	 */
	void setBody(Expression value);

	/**
	 * Returns the value of the '<em><b>Functional</b></em>' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the value of the '<em>Functional</em>' attribute.
	 * @see #setFunctional(boolean)
	 * @see org.eclipse.viatra.solver.language.solverLanguage.SolverLanguagePackage#getPredicateDefinition_Functional()
	 * @model
	 * @generated
	 */
	boolean isFunctional();

	/**
	 * Sets the value of the '{@link org.eclipse.viatra.solver.language.solverLanguage.PredicateDefinition#isFunctional <em>Functional</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Functional</em>' attribute.
	 * @see #isFunctional()
	 * @generated
	 */
	void setFunctional(boolean value);

	/**
	 * Returns the value of the '<em><b>Error</b></em>' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the value of the '<em>Error</em>' attribute.
	 * @see #setError(boolean)
	 * @see org.eclipse.viatra.solver.language.solverLanguage.SolverLanguagePackage#getPredicateDefinition_Error()
	 * @model
	 * @generated
	 */
	boolean isError();

	/**
	 * Sets the value of the '{@link org.eclipse.viatra.solver.language.solverLanguage.PredicateDefinition#isError <em>Error</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Error</em>' attribute.
	 * @see #isError()
	 * @generated
	 */
	void setError(boolean value);

} // PredicateDefinition