Package org.drools.rule.builder.dialect.asm

Examples of org.drools.rule.builder.dialect.asm.ClassGenerator

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import static org.mvel2.asm.Opcodes.IASTORE;

public class ASMConditionEvaluatorJitter {

    public static ConditionEvaluator jitEvaluator(String expression, Condition condition, Declaration[] declarations, ClassLoader classLoader, LeftTuple leftTuple) {
        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)
                .addDefaultConstructor(new ClassGenerator.MethodBody() {
                    public void body(MethodVisitor mv) {
                        putFieldInThisFromRegistry("declarations", Declaration[].class, 1);
                        mv.visitInsn(RETURN);
                    }
                }, Declaration[].class);

        generator.addMethod(ACC_PUBLIC,
                            "evaluate",
                            generator.methodDescr(boolean.class, Object.class, InternalWorkingMemory.class, LeftTuple.class),
                            new EvaluateMethodGenerator(condition, declarations, leftTuple));

        return generator.newInstance(Declaration[].class, declarations);
    }
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import static org.mvel2.asm.Opcodes.IASTORE;

public class ASMConditionEvaluatorJitter {

    public static ConditionEvaluator jitEvaluator(String expression, Condition condition, Declaration[] declarations, ClassLoader classLoader, LeftTuple leftTuple) {
        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)
                .addDefaultConstructor(new ClassGenerator.MethodBody() {
                    public void body(MethodVisitor mv) {
                        putFieldInThisFromRegistry("declarations", Declaration[].class, 1);
                        mv.visitInsn(RETURN);
                    }
                }, Declaration[].class);

        generator.addMethod(ACC_PUBLIC,
                            "evaluate",
                            generator.methodDescr(boolean.class, Object.class, InternalWorkingMemory.class, LeftTuple.class),
                            new EvaluateMethodGenerator(condition, declarations, leftTuple));

        return generator.newInstance(Declaration[].class, declarations);
    }
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import static org.mvel2.asm.Opcodes.IASTORE;

public class ASMConditionEvaluatorJitter {

    public static ConditionEvaluator jitEvaluator(String expression, Condition condition, Declaration[] declarations, ClassLoader classLoader, LeftTuple leftTuple) {
        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)
                .addDefaultConstructor(new ClassGenerator.MethodBody() {
                    public void body(MethodVisitor mv) {
                        putFieldInThisFromRegistry("declarations", Declaration[].class, 1);
                        mv.visitInsn(RETURN);
                    }
                }, Declaration[].class);

        generator.addMethod(ACC_PUBLIC,
                            "evaluate",
                            generator.methodDescr(boolean.class, Object.class, InternalWorkingMemory.class, LeftTuple.class),
                            new EvaluateMethodGenerator(condition, declarations, leftTuple));

        return generator.newInstance(Declaration[].class, declarations);
    }
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import static org.mvel2.asm.Opcodes.IASTORE;

public class ASMConditionEvaluatorJitter {

    public static ConditionEvaluator jitEvaluator(String expression, Condition condition, Declaration[] declarations, ClassLoader classLoader, LeftTuple leftTuple) {
        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)
                .addDefaultConstructor(new ClassGenerator.MethodBody() {
                    public void body(MethodVisitor mv) {
                        putFieldInThisFromRegistry("declarations", Declaration[].class, 1);
                        mv.visitInsn(RETURN);
                    }
                }, Declaration[].class);

        generator.addMethod(ACC_PUBLIC,
                            "evaluate",
                            generator.methodDescr(boolean.class, Object.class, InternalWorkingMemory.class, LeftTuple.class),
                            new EvaluateMethodGenerator(condition, declarations, leftTuple));

        return generator.newInstance(Declaration[].class, declarations);
    }
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import static org.mvel2.asm.Opcodes.IASTORE;

public class ASMConditionEvaluatorJitter {

    public static ConditionEvaluator jitEvaluator(String expression, Condition condition, Declaration[] declarations, ClassLoader classLoader, LeftTuple leftTuple) {
        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)
                .addDefaultConstructor(new ClassGenerator.MethodBody() {
                    public void body(MethodVisitor mv) {
                        putFieldInThisFromRegistry("declarations", Declaration[].class, 1);
                        mv.visitInsn(RETURN);
                    }
                }, Declaration[].class);

        generator.addMethod(ACC_PUBLIC,
                            "evaluate",
                            generator.methodDescr(boolean.class, Object.class, InternalWorkingMemory.class, LeftTuple.class),
                            new EvaluateMethodGenerator(condition, declarations, leftTuple));

        return generator.newInstance(Declaration[].class, declarations);
    }
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import static org.mvel2.asm.Opcodes.IASTORE;

public class ASMConditionEvaluatorJitter {

    public static ConditionEvaluator jitEvaluator(String expression, Condition condition, Declaration[] declarations, ClassLoader classLoader, LeftTuple leftTuple) {
        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)
                .addDefaultConstructor(new ClassGenerator.MethodBody() {
                    public void body(MethodVisitor mv) {
                        putFieldInThisFromRegistry("declarations", Declaration[].class, 1);
                        mv.visitInsn(RETURN);
                    }
                }, Declaration[].class);

        generator.addMethod(ACC_PUBLIC,
                            "evaluate",
                            generator.methodDescr(boolean.class, Object.class, InternalWorkingMemory.class, LeftTuple.class),
                            new EvaluateMethodGenerator(condition, declarations, leftTuple));

        return generator.newInstance(Declaration[].class, declarations);
    }
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    public static ConditionEvaluator jit(ExecutableStatement executableStatement, ClassLoader classLoader) {
        return generateConditionEvaluator(new AnalyzedCondition(executableStatement), classLoader);
    }

    private static ConditionEvaluator generateConditionEvaluator(AnalyzedCondition analyzedCondition, ClassLoader classLoader) {
        ClassGenerator generator = new ClassGenerator(getUniqueClassName(), classLoader)
                .setInterfaces(ConditionEvaluator.class)
                .addDefaultConstructor();

        generator.addMethod(ACC_PUBLIC, "evaluate", generator.methodDescr(boolean.class, Object.class), new EvaluateMethodGenerator(analyzedCondition));

        return generator.newInstance();
    }
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import static org.mvel2.asm.Opcodes.*;

public class ASMConditionEvaluatorJitter {

    public static ConditionEvaluator jit(Condition condition, ClassLoader classLoader) {
        ClassGenerator generator = new ClassGenerator(getUniqueClassName(), classLoader)
                .setInterfaces(ConditionEvaluator.class)
                .addDefaultConstructor();

        generator.addMethod(ACC_PUBLIC, "evaluate", generator.methodDescr(boolean.class, Object.class, Map.class), new EvaluateMethodGenerator(condition));

        return generator.newInstance();
    }
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import static org.mvel2.asm.Opcodes.IASTORE;

public class ASMConditionEvaluatorJitter {

    public static ConditionEvaluator jitEvaluator(String expression, Condition condition, Declaration[] declarations, ClassLoader classLoader, LeftTuple leftTuple) {
        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)
                .addDefaultConstructor(new ClassGenerator.MethodBody() {
                    public void body(MethodVisitor mv) {
                        putFieldInThisFromRegistry("declarations", Declaration[].class, 1);
                        mv.visitInsn(RETURN);
                    }
                }, Declaration[].class);

        generator.addMethod(ACC_PUBLIC,
                            "evaluate",
                            generator.methodDescr(boolean.class, Object.class, InternalWorkingMemory.class, LeftTuple.class),
                            new EvaluateMethodGenerator(condition, declarations, leftTuple));

        return generator.newInstance(Declaration[].class, declarations);
    }
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Related Classes of org.drools.rule.builder.dialect.asm.ClassGenerator

  • org.drools.rule.constraint.ASMConditionEvaluatorJitter
  • org.mvel2.asm.ClassWriter
  • org.mvel2.asm.MethodVisitor
  • org.mvel2.asm.Type
  • java.io.FileOutputStream
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