Examples with Declaration org.drools.core.rule.Declaration used on opensource projects

Example 36 with Declaration

use of org.drools.core.rule.Declaration in project drools by kiegroup.

the class RightTupleIndexHashTableTest method testTwoEqualEntries.

@Test
public void testTwoEqualEntries() throws Exception {
    final InternalReadAccessor extractor = store.getReader(Cheese.class, "type");
    final Pattern pattern = new Pattern(0, new ClassObjectType(Cheese.class));
    final Declaration declaration = new Declaration("typeOfCheese", extractor, pattern);
    final FieldIndex fieldIndex = new FieldIndex(extractor, declaration, MvelConstraint.INDEX_EVALUATOR);
    final TupleIndexHashTable map = new TupleIndexHashTable(new FieldIndex[] { fieldIndex }, false);
    assertEquals(0, map.size());
    final Cheese stilton1 = new Cheese("stilton", 35);
    final InternalFactHandle stiltonHandle1 = new DefaultFactHandle(1, stilton1);
    map.add(new RightTupleImpl(stiltonHandle1, null));
    final Cheese cheddar1 = new Cheese("cheddar", 35);
    final InternalFactHandle cheddarHandle1 = new DefaultFactHandle(2, cheddar1);
    map.add(new RightTupleImpl(cheddarHandle1, null));
    final Cheese stilton2 = new Cheese("stilton", 81);
    final InternalFactHandle stiltonHandle2 = new DefaultFactHandle(3, stilton2);
    map.add(new RightTupleImpl(stiltonHandle2, null));
    assertEquals(3, map.size());
    assertEquals(2, tablePopulationSize(map));
    // Check they are correctly chained to the same FieldIndexEntry
    final Cheese stilton3 = new Cheese("stilton", 89);
    final InternalFactHandle stiltonHandle3 = new DefaultFactHandle(4, stilton2);
    final Tuple tuple = map.getFirst(new LeftTupleImpl(stiltonHandle3, null, true));
    assertSame(stiltonHandle1, tuple.getFactHandle());
    assertSame(stiltonHandle2, ((RightTuple) tuple.getNext()).getFactHandle());
}

Example 37 with Declaration

use of org.drools.core.rule.Declaration in project drools by kiegroup.

the class RightTupleIndexHashTableTest method testTwoDifferentEntries.

@Test
public void testTwoDifferentEntries() throws Exception {
    final InternalReadAccessor extractor = store.getReader(Cheese.class, "type");
    final Pattern pattern = new Pattern(0, new ClassObjectType(Cheese.class));
    final Declaration declaration = new Declaration("typeOfCheese", extractor, pattern);
    final FieldIndex fieldIndex = new FieldIndex(extractor, declaration, MvelConstraint.INDEX_EVALUATOR);
    final TupleIndexHashTable map = new TupleIndexHashTable(new FieldIndex[] { fieldIndex }, false);
    assertEquals(0, map.size());
    final Cheese stilton1 = new Cheese("stilton", 35);
    final InternalFactHandle stiltonHandle1 = new DefaultFactHandle(1, stilton1);
    map.add(new RightTupleImpl(stiltonHandle1, null));
    final Cheese cheddar1 = new Cheese("cheddar", 35);
    final InternalFactHandle cheddarHandle1 = new DefaultFactHandle(2, cheddar1);
    map.add(new RightTupleImpl(cheddarHandle1, null));
    assertEquals(2, map.size());
    assertEquals(2, tablePopulationSize(map));
    final Cheese stilton2 = new Cheese("stilton", 77);
    final InternalFactHandle stiltonHandle2 = new DefaultFactHandle(2, stilton2);
    Tuple tuple = map.getFirst(new LeftTupleImpl(stiltonHandle2, null, true));
    assertSame(stiltonHandle1, tuple.getFactHandle());
    assertNull(tuple.getNext());
    final Cheese cheddar2 = new Cheese("cheddar", 5);
    final InternalFactHandle cheddarHandle2 = new DefaultFactHandle(2, cheddar2);
    tuple = map.getFirst(new LeftTupleImpl(cheddarHandle2, null, true));
    assertSame(cheddarHandle1, tuple.getFactHandle());
    assertNull(tuple.getNext());
}

Example 38 with Declaration

use of org.drools.core.rule.Declaration in project drools by kiegroup.

the class ASMConditionEvaluatorJitter method jitEvaluator.

public static ConditionEvaluator jitEvaluator(String expression, Condition condition, Declaration[] declarations, EvaluatorWrapper[] operators, ClassLoader classLoader, Tuple tuple) {
    ClassGenerator generator = new ClassGenerator(getUniqueClassName(), classLoader).setInterfaces(ConditionEvaluator.class).addStaticField(ACC_PRIVATE | ACC_FINAL, "EXPRESSION", String.class, expression).addField(ACC_PRIVATE | ACC_FINAL, "declarations", Declaration[].class);
    generator.addMethod(ACC_PUBLIC, "evaluate", generator.methodDescr(boolean.class, InternalFactHandle.class, InternalWorkingMemory.class, Tuple.class), new EvaluateMethodGenerator(condition, declarations, operators, tuple));
    if (operators.length == 0) {
        generator.addDefaultConstructor(new ClassGenerator.MethodBody() {

            public void body(MethodVisitor mv) {
                putFieldInThisFromRegistry("declarations", Declaration[].class, 1);
                mv.visitInsn(RETURN);
            }
        }, Declaration[].class);
        return generator.newInstance(Declaration[].class, declarations);
    }
    generator.addField(ACC_PRIVATE | ACC_FINAL, "operators", EvaluatorWrapper[].class);
    generator.addDefaultConstructor(new ClassGenerator.MethodBody() {

        public void body(MethodVisitor mv) {
            putFieldInThisFromRegistry("declarations", Declaration[].class, 1);
            putFieldInThisFromRegistry("operators", EvaluatorWrapper[].class, 2);
            mv.visitInsn(RETURN);
        }
    }, Declaration[].class, EvaluatorWrapper[].class);
    return generator.newInstance(Declaration[].class, declarations, EvaluatorWrapper[].class, operators);
}

Example 39 with Declaration

use of org.drools.core.rule.Declaration in project drools by kiegroup.

the class EvaluatorHelper method valuesAsMap.

public static Map<String, Object> valuesAsMap(Object object, InternalWorkingMemory workingMemory, Tuple tuple, Declaration[] declarations) {
    if (declarations.length == 0) {
        return null;
    }
    Map<String, Object> map = new HashMap<String, Object>();
    for (Declaration declaration : declarations) {
        if (tuple == null) {
            map.put(declaration.getBindingName(), declaration.getExtractor().getValue(workingMemory, object));
        } else {
            Object fact = tuple.getObject(declaration);
            map.put(declaration.getBindingName(), declaration.getExtractor().getValue(workingMemory, fact != null ? fact : object));
        }
    }
    return map;
}

Example 40 with Declaration

use of org.drools.core.rule.Declaration in project drools by kiegroup.

the class RowAdapter method get.

public Object get(String identifier) {
    if (factHandles == null) {
        this.factHandles = this.tuple.toFactHandles();
    }
    Declaration declr = this.rule.getDeclaration(identifier);
    if (declr == null) {
        throw new RuntimeException("The identifier '" + identifier + "' does not exist as a bound variable for this query");
    }
    InternalFactHandle factHandle = getFactHandle(declr);
    return declr.getValue(null, factHandle.getObject());
}