Java PropertyDescriptor.getValue方法代码示例

import java.beans.PropertyDescriptor; //导入方法依赖的package包/类
private static void test(Class<?> cls, boolean isBound, boolean isExpert,
                         boolean isHidden, boolean isPref, boolean isReq,
                         boolean isVS) {
    PropertyDescriptor pd = BeanUtils.getPropertyDescriptor(cls, "value");
    if (pd.isBound() != isBound) {
        throw new RuntimeException("isBound should be: " + isBound);
    }
    if (pd.isExpert() != isExpert || getValue(pd, "expert") != isExpert) {
        throw new RuntimeException("isExpert should be:" + isExpert);
    }
    if (pd.isHidden() != isHidden || getValue(pd, "hidden") != isHidden) {
        throw new RuntimeException("isHidden should be: " + isHidden);
    }
    if (pd.isPreferred() != isPref) {
        throw new RuntimeException("isPreferred should be: " + isPref);
    }
    if (getValue(pd, "required") != isReq) {
        throw new RuntimeException("required should be: " + isReq);
    }
    if (getValue(pd, "visualUpdate") != isVS) {
        throw new RuntimeException("required should be: " + isVS);
    }
    if (pd.getValue("enumerationValues") == null) {
        throw new RuntimeException("enumerationValues should be empty array");
    }
}
 

import java.beans.PropertyDescriptor; //导入方法依赖的package包/类
private static boolean checkDefault(BeanInfo i) {

        System.out.println("checking default info...");

        PropertyDescriptor descriptors[] = i.getPropertyDescriptors();
        int nd = descriptors.length;
        if (nd != 1) {
            System.out.println("invalid number of descriptors: " + nd);
            return false;
        }

        PropertyDescriptor d = descriptors[0];

        String descr = d.getShortDescription();
        boolean ok = descr.equals("x");
        if (!ok) { System.out.println("invalid description: " + descr +
                ", expected: x"); }

        ok &= check("isBound",  d.isBound(),  false);
        ok &= check("isExpert", d.isExpert(), false);
        ok &= check("isHidden", d.isHidden(), false);
        ok &= check("isPreferred", d.isPreferred(), false);
        ok &= check("required", (boolean) d.getValue("required"), false);
        ok &= check("visualUpdate",
            (boolean) d.getValue("visualUpdate"), false);

        Object vals[] = (Object[]) d.getValue("enumerationValues");
        if (vals != null && vals.length > 0) {
            System.out.println("non-empty enumerationValues");
            ok = false;
        }

        return ok;
    }
 

import java.beans.PropertyDescriptor; //导入方法依赖的package包/类
private static boolean checkAlternativeInfo(BeanInfo i) {

        System.out.println("checking alternative info...");

        PropertyDescriptor descriptors[] = i.getPropertyDescriptors();
        int nd = descriptors.length;
        if (nd != 1) {
            System.out.println("invalid number of descriptors: " + nd);
            return false;
        }

        PropertyDescriptor d = descriptors[0];

        String descr = d.getShortDescription();
        boolean ok = descr.equals(DESCRIPTION_2);
        if (!ok) { System.out.println("invalid alternative description: " +
            descr + ", expected: " + DESCRIPTION_2); }

        ok &= check("isBound",  d.isBound(),  !BOUND);
        ok &= check("isExpert", d.isExpert(), !EXPERT);
        ok &= check("isHidden", d.isHidden(), !HIDDEN);
        ok &= check("isPreferred", d.isPreferred(), !PREFERRED);
        ok &= check("required", (boolean) d.getValue("required"), !REQUIRED);
        ok &= check("visualUpdate",
            (boolean) d.getValue("visualUpdate"), !UPDATE);

        Object vals[] = (Object[]) d.getValue("enumerationValues");
        if (vals != null || vals.length > 0) {
            System.out.println("non-null enumerationValues");
            return false;
        }

        return ok;
    }
 

import java.beans.PropertyDescriptor; //导入方法依赖的package包/类
private static boolean checkAlternativeInfo(Class<?> c, String what) {

        BeanInfo i;
        try { i = Introspector.getBeanInfo(c, Object.class); }
        catch (IntrospectionException e) { throw new RuntimeException(e); }

        System.out.println("checking alternative info for " + what);

        PropertyDescriptor descriptors[] = i.getPropertyDescriptors();
        int nd = descriptors.length;
        if (nd != 1) {
            System.out.println("invalid number of descriptors: " + nd);
            return false;
        }

        PropertyDescriptor d = descriptors[0];

        String descr = d.getShortDescription();
        boolean ok = descr.equals(DESCRIPTION_2);
        if (!ok) { System.out.println("invalid alternative description: " +
            descr + ", expected: " + DESCRIPTION_2); }

        ok &= check("isBound",  d.isBound(),  !BOUND);
        ok &= check("isExpert", d.isExpert(), !EXPERT);
        ok &= check("isHidden", d.isHidden(), !HIDDEN);
        ok &= check("isPreferred", d.isPreferred(), !PREFERRED);
        ok &= check("required", (boolean) d.getValue("required"), !REQUIRED);
        ok &= check("visualUpdate",
            (boolean) d.getValue("visualUpdate"), !UPDATE);

        Object vals[] = (Object[]) d.getValue("enumerationValues");
        if (vals != null && vals.length > 0) {
            System.out.println("non-empty enumerationValues:");
            for (Object v: vals) { System.out.print(v.toString()); }
            System.out.println();
            return false;
        }

        return ok;
    }
 

import java.beans.PropertyDescriptor; //导入方法依赖的package包/类
public static void main(String[] args) throws Exception {
    Class<?>[] types =
            {B.class, BL.class, BLF.class, E.class, H.class, P.class,
             VU.class, D.class, EVD.class, EVE.class, EV.class, EVL.class,
             EVX.class, R.class};
    for (Class<?> type : types) {
        PropertyDescriptor pd = BeanUtils.getPropertyDescriptor(type, "value");
        if (((B.class == type) || (BLF.class == type)) && pd.isBound()) {
            BeanUtils.reportPropertyDescriptor(pd);
            throw new Error("not bound");
        }
        if ((BL.class == type) == !pd.isBound()) {
            BeanUtils.reportPropertyDescriptor(pd);
            throw new Error("bound");
        }
        if ((E.class == type) == !pd.isExpert()) {
            BeanUtils.reportPropertyDescriptor(pd);
            throw new Error("expert");
        }
        if ((H.class == type) == !pd.isHidden()) {
            BeanUtils.reportPropertyDescriptor(pd);
            throw new Error("hidden");
        }
        if ((P.class == type) == !pd.isPreferred()) {
            BeanUtils.reportPropertyDescriptor(pd);
            throw new Error("preferred");
        }
        if ((R.class == type) == !Boolean.TRUE.equals(pd.getValue("required"))) {
            BeanUtils.reportPropertyDescriptor(pd);
            throw new Error("required");
        }
        if ((D.class == type) == !"getter".equals(pd.getShortDescription())) {
            BeanUtils.reportPropertyDescriptor(pd);
            throw new Error("shortDescription");
        }
        if ((VU.class == type) == !Boolean.TRUE.equals(pd.getValue("visualUpdate"))) {
            BeanUtils.reportPropertyDescriptor(pd);
            throw new Error("visualUpdate");
        }
        if ((EV.class == type) == !isEV(pd, "LEFT", 2, "javax.swing.SwingConstants.LEFT", "RIGHT", 4, "javax.swing.SwingConstants.RIGHT")) {
            BeanUtils.reportPropertyDescriptor(pd);
            throw new Error("enumerationValues from another package");
        }
        if ((EVL.class == type) == !isEV(pd, "ZERO", 0, "ZERO", "ONE", 1, "ONE")) {
            BeanUtils.reportPropertyDescriptor(pd);
            throw new Error("enumerationValues from another package");
        }
        if ((EVX.class == type) == !isEV(pd, "ZERO", 0, "X.ZERO", "ONE", 1, "X.ONE")) {
            BeanUtils.reportPropertyDescriptor(pd);
            throw new Error("enumerationValues from another package");
        }
        if (EVD.class == type && !isEV(pd)) {
            BeanUtils.reportPropertyDescriptor(pd);
            throw new Error("EV:"+ pd.getValue("enumerationValues"));
        }
        if (EVE.class == type && !isEV(pd)) {
            BeanUtils.reportPropertyDescriptor(pd);
            throw new Error("EV:"+ pd.getValue("enumerationValues"));
        }
    }
}
 

import java.beans.PropertyDescriptor; //导入方法依赖的package包/类
private static boolean isEV(PropertyDescriptor pd, Object... expected) {
    Object value = pd.getValue("enumerationValues");
    return value instanceof Object[] && Arrays.equals((Object[]) value, expected);
}
 

import java.beans.PropertyDescriptor; //导入方法依赖的package包/类
private static boolean checkInfo(BeanInfo i, boolean ignoreValsCheck) {

        System.out.println("checking info...");

        PropertyDescriptor descriptors[] = i.getPropertyDescriptors();
        int nd = descriptors.length;
        if (nd != 1) {
            System.out.println("invalid number of descriptors: " + nd);
            return false;
        }

        PropertyDescriptor d = descriptors[0];

        String descr = d.getShortDescription();
        boolean ok = descr.equals(DESCRIPTION);
        if (!ok) { System.out.println("invalid description: " + descr +
                ", expected: " + DESCRIPTION); }

        ok &= check("isBound",  d.isBound(),  BOUND);
        ok &= check("isExpert", d.isExpert(), EXPERT);
        ok &= check("isHidden", d.isHidden(), HIDDEN);
        ok &= check("isPreferred", d.isPreferred(), PREFERRED);
        ok &= check("required", (boolean) d.getValue("required"), REQUIRED);
        ok &= check("visualUpdate",
            (boolean) d.getValue("visualUpdate"), UPDATE);

        if (ignoreValsCheck) { return ok; }

        Object vals[] = (Object[]) d.getValue("enumerationValues");
        if (vals == null) {
            System.out.println("null enumerationValues");
            return false;
        }

        boolean okVals = (
            (vals.length == 3) &&
             vals[0].toString().equals(V_SHORT) &&
             vals[1].toString().equals(V)       &&
             vals[2].toString().equals(V_NAME));

        if (!okVals) { System.out.println("invalid enumerationValues"); }

        return (ok && okVals);
    }
 

import java.beans.PropertyDescriptor; //导入方法依赖的package包/类
private static boolean getValue(PropertyDescriptor pd, String value) {
    return (boolean) pd.getValue(value);
}
 

import java.beans.PropertyDescriptor; //导入方法依赖的package包/类
private static boolean checkInfo(BeanInfo i, boolean checkVals) {

        System.out.println("checking info...");

        PropertyDescriptor descriptors[] = i.getPropertyDescriptors();
        int nd = descriptors.length;
        if (nd != 1) {
            System.out.println("invalid number of descriptors: " + nd);
            return false;
        }

        PropertyDescriptor d = descriptors[0];

        String descr = d.getShortDescription();
        boolean ok = descr.equals(DESCRIPTION);
        if (!ok) { System.out.println("invalid description: " + descr +
                ", expected: " + DESCRIPTION); }

        ok &= check("isBound",  d.isBound(),  BOUND);
        ok &= check("isExpert", d.isExpert(), EXPERT);
        ok &= check("isHidden", d.isHidden(), HIDDEN);
        ok &= check("isPreferred", d.isPreferred(), PREFERRED);
        ok &= check("required", (boolean) d.getValue("required"), REQUIRED);
        ok &= check("visualUpdate",
            (boolean) d.getValue("visualUpdate"), UPDATE);

        if (!checkVals) { return ok; }

        Object vals[] = (Object[]) d.getValue("enumerationValues");
        if (vals == null) {
            System.out.println("null enumerationValues");
            return false;
        }

        boolean okVals = (
            (vals.length == 3) &&
             vals[0].toString().equals(V_SHORT) &&
             vals[1].toString().equals(V)       &&
             vals[2].toString().equals(V_NAME));

        if (!okVals) { System.out.println("invalid enumerationValues"); }

        return (ok && okVals);
    }
 

import java.beans.PropertyDescriptor; //导入方法依赖的package包/类
private static boolean checkInfo(Class<?> c, String what, boolean checkVals) {

        BeanInfo i;
        try { i = Introspector.getBeanInfo(c, Object.class); }
        catch (IntrospectionException e) { throw new RuntimeException(e); }

        System.out.println("\nchecking info for " + what);

        PropertyDescriptor descriptors[] = i.getPropertyDescriptors();
        int nd = descriptors.length;
        if (nd != 1) {
            System.out.println("invalid number of descriptors: " + nd);
            return false;
        }

        PropertyDescriptor d = descriptors[0];

        String descr = d.getShortDescription();
        boolean ok = descr.equals(DESCRIPTION);
        if (!ok) { System.out.println("invalid description: " + descr +
                ", expected: " + DESCRIPTION); }

        ok &= check("isBound",  d.isBound(),  BOUND);
        ok &= check("isExpert", d.isExpert(), EXPERT);
        ok &= check("isHidden", d.isHidden(), HIDDEN);
        ok &= check("isPreferred", d.isPreferred(), PREFERRED);
        ok &= check("required", (boolean) d.getValue("required"), REQUIRED);
        ok &= check("visualUpdate",
            (boolean) d.getValue("visualUpdate"), UPDATE);

        if (!checkVals) { return ok; }

        Object vals[] = (Object[]) d.getValue("enumerationValues");
        if (vals == null) {
            System.out.println("null enumerationValues");
            return false;
        }

        if (vals.length == 0) {
            System.out.println("empty enumerationValues");
            return false;
        }

        boolean okVals = (
            (vals.length == 3) &&
             vals[0].toString().equals(V_SHORT) &&
             vals[1].toString().equals(V)       &&
             vals[2].toString().equals(V_NAME));

        if (!okVals) {
            System.out.println("invalid enumerationValues:");
            for (Object v: vals) { System.out.println(v.toString()); }
        }

        return (ok && okVals);
    }