Example usage for java.lang.reflect Array get

List of usage examples for java.lang.reflect Array get

  1. HOME
  2. Java
  3. java
  4. java.lang.reflect.*
  5. Array
  6. get

Introduction

In this page you can find the example usage for java.lang.reflect Array get.

Prototype

public static native Object get(Object array, int index)
        throws IllegalArgumentException, ArrayIndexOutOfBoundsException;

Source Link

Document

Returns the value of the indexed component in the specified array object.

Usage

From source file:com.gigaspaces.persistency.metadata.DefaultSpaceDocumentMapper.java

private BasicDBList toArray(Object property) {
    BasicDBList builder = new BasicDBList();

    int length = Array.getLength(property);

    builder.add(property.getClass().getName());

    for (int i = 0; i < length; i++) {
        Object obj = toObject(Array.get(property, i));
        setArray(builder, obj);//from  ww w  . j a v  a  2  s  .  c om
    }

    return builder;
}

From source file:javadz.beanutils.PropertyUtilsBean.java

/**
 * Return the value of the specified indexed property of the specified
 * bean, with no type conversions.  In addition to supporting the JavaBeans
 * specification, this method has been extended to support
 * <code>List</code> objects as well.
 *
 * @param bean Bean whose property is to be extracted
 * @param name Simple property name of the property value to be extracted
 * @param index Index of the property value to be extracted
 * @return the indexed property value/*from w  w w  . j  a v a  2  s. c  om*/
 *
 * @exception IndexOutOfBoundsException if the specified index
 *  is outside the valid range for the underlying property
 * @exception IllegalAccessException if the caller does not have
 *  access to the property accessor method
 * @exception IllegalArgumentException if <code>bean</code> or
 *  <code>name</code> is null
 * @exception InvocationTargetException if the property accessor method
 *  throws an exception
 * @exception NoSuchMethodException if an accessor method for this
 *  propety cannot be found
 */
public Object getIndexedProperty(Object bean, String name, int index)
        throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {

    if (bean == null) {
        throw new IllegalArgumentException("No bean specified");
    }
    if (name == null || name.length() == 0) {
        if (bean.getClass().isArray()) {
            return Array.get(bean, index);
        } else if (bean instanceof List) {
            return ((List) bean).get(index);
        }
    }
    if (name == null) {
        throw new IllegalArgumentException("No name specified for bean class '" + bean.getClass() + "'");
    }

    // Handle DynaBean instances specially
    if (bean instanceof DynaBean) {
        DynaProperty descriptor = ((DynaBean) bean).getDynaClass().getDynaProperty(name);
        if (descriptor == null) {
            throw new NoSuchMethodException(
                    "Unknown property '" + name + "' on bean class '" + bean.getClass() + "'");
        }
        return (((DynaBean) bean).get(name, index));
    }

    // Retrieve the property descriptor for the specified property
    PropertyDescriptor descriptor = getPropertyDescriptor(bean, name);
    if (descriptor == null) {
        throw new NoSuchMethodException(
                "Unknown property '" + name + "' on bean class '" + bean.getClass() + "'");
    }

    // Call the indexed getter method if there is one
    if (descriptor instanceof IndexedPropertyDescriptor) {
        Method readMethod = ((IndexedPropertyDescriptor) descriptor).getIndexedReadMethod();
        readMethod = MethodUtils.getAccessibleMethod(bean.getClass(), readMethod);
        if (readMethod != null) {
            Object[] subscript = new Object[1];
            subscript[0] = new Integer(index);
            try {
                return (invokeMethod(readMethod, bean, subscript));
            } catch (InvocationTargetException e) {
                if (e.getTargetException() instanceof IndexOutOfBoundsException) {
                    throw (IndexOutOfBoundsException) e.getTargetException();
                } else {
                    throw e;
                }
            }
        }
    }

    // Otherwise, the underlying property must be an array
    Method readMethod = getReadMethod(bean.getClass(), descriptor);
    if (readMethod == null) {
        throw new NoSuchMethodException(
                "Property '" + name + "' has no " + "getter method on bean class '" + bean.getClass() + "'");
    }

    // Call the property getter and return the value
    Object value = invokeMethod(readMethod, bean, EMPTY_OBJECT_ARRAY);
    if (!value.getClass().isArray()) {
        if (!(value instanceof java.util.List)) {
            throw new IllegalArgumentException(
                    "Property '" + name + "' is not indexed on bean class '" + bean.getClass() + "'");
        } else {
            //get the List's value
            return ((java.util.List) value).get(index);
        }
    } else {
        //get the array's value
        try {
            return (Array.get(value, index));
        } catch (ArrayIndexOutOfBoundsException e) {
            throw new ArrayIndexOutOfBoundsException(
                    "Index: " + index + ", Size: " + Array.getLength(value) + " for property '" + name + "'");
        }
    }

}

From source file:com.sun.faces.renderkit.html_basic.MenuRenderer.java

boolean isSelected(Object itemValue, Object valueArray) {
    if (null != valueArray) {
        int len = Array.getLength(valueArray);
        for (int i = 0; i < len; i++) {
            Object value = Array.get(valueArray, i);
            if (value == null) {
                if (itemValue == null) {
                    return true;
                }/*from w ww  .  j a va2 s. co  m*/
            } else if (value.equals(itemValue)) {
                return true;
            }
        }
    }
    return false;
}

From source file:com.icesoft.faces.renderkit.dom_html_basic.MenuRenderer.java

boolean isSelected(Object sentinel, Object selectedValues, FacesContext facesContext, UIComponent uiComponent) {
    boolean isSelected = false;
    if (selectedValues == null || sentinel == null) {
        return isSelected;
    }/*  w ww  .  j  ava  2 s . c o  m*/
    String formattedSelectedValue;
    String formattedSentinel = formatComponentValue(facesContext, uiComponent, sentinel);
    int length = Array.getLength(selectedValues);
    for (int index = 0; index < length; index++) {
        Object nextSelectedValue = Array.get(selectedValues, index);
        formattedSelectedValue = formatComponentValue(facesContext, uiComponent, nextSelectedValue);
        if (nextSelectedValue == null && sentinel == null) {
            isSelected = true;
            break;
        } else if (nextSelectedValue != null && nextSelectedValue.equals(sentinel)) {
            isSelected = true;
            break;
        } else if (sentinel instanceof String) {
            if (isConversionMatched(sentinel.toString(), nextSelectedValue)) {
                isSelected = true;
                break;
            }
            if (formattedSelectedValue.equals(sentinel)) {
                isSelected = true;
                break;
            }
        } else if (formattedSelectedValue != null && formattedSelectedValue.equals(formattedSentinel)) {
            isSelected = true;
            break;
        }
    }
    return isSelected;
}

From source file:org.apache.myfaces.shared_impl.renderkit.RendererUtils.java

private static Set internalSubmittedOrSelectedValuesAsSet(FacesContext context, UIComponent component,
        Converter converter, UISelectMany uiSelectMany, Object values) {
    if (values == null || EMPTY_STRING.equals(values)) {
        return Collections.EMPTY_SET;
    } else if (values instanceof Object[]) {
        //Object array
        Object[] ar = (Object[]) values;
        if (ar.length == 0) {
            return Collections.EMPTY_SET;
        }//from  w  w  w .  ja  va  2 s  . c  om

        HashSet set = new HashSet(HashMapUtils.calcCapacity(ar.length));
        for (int i = 0; i < ar.length; i++) {
            set.add(getConvertedStringValue(context, component, converter, ar[i]));
        }
        return set;
    } else if (values.getClass().isArray()) {
        //primitive array
        int len = Array.getLength(values);
        HashSet set = new HashSet(org.apache.myfaces.shared_impl.util.HashMapUtils.calcCapacity(len));
        for (int i = 0; i < len; i++) {
            set.add(getConvertedStringValue(context, component, converter, Array.get(values, i)));
        }
        return set;
    } else if (values instanceof List) {
        List lst = (List) values;
        if (lst.size() == 0) {
            return Collections.EMPTY_SET;
        } else {
            HashSet set = new HashSet(HashMapUtils.calcCapacity(lst.size()));
            for (Iterator i = lst.iterator(); i.hasNext();)
                set.add(getConvertedStringValue(context, component, converter, i.next()));

            return set;
        }
    } else {
        throw new IllegalArgumentException("Value of UISelectMany component with path : "
                + getPathToComponent(uiSelectMany) + " is not of type Array or List");
    }
}

From source file:org.crank.javax.faces.component.MenuRenderer.java

boolean containsaValue(Object valueArray) {

    if (null != valueArray) {
        int len = Array.getLength(valueArray);
        for (int i = 0; i < len; i++) {
            Object value = Array.get(valueArray, i);
            if (value != null && !(value.equals(RIConstants.NO_VALUE))) {
                return true;
            }//from   w w w .j  a  v a  2  s.  c o m
        }
    }
    return false;

}

From source file:org.apache.openjpa.kernel.AttachStrategy.java

/**
 * Returns an attached version of the <code>frma</code>
 * array if it is different than <code>toa</code>. If the arrays
 * will be identical, returns <code>toa</code>.
 *///from  w w  w.j  av  a  2  s .c  o m
private Object replaceArray(AttachManager manager, Object frma, Object toa, OpenJPAStateManager sm,
        FieldMetaData fmd) {
    int len = Array.getLength(frma);
    boolean diff = toa == null || len != Array.getLength(toa);

    // populate an array copy on the initial assumption that the array
    // is dirty
    Object newa = Array.newInstance(fmd.getElement().getDeclaredType(), len);
    ValueMetaData vmd = fmd.getElement();
    boolean pc = vmd.isDeclaredTypePC();
    Object elem;
    for (int i = 0; i < len; i++) {
        elem = Array.get(frma, i);
        if (pc) {
            if (vmd.getCascadeAttach() == ValueMetaData.CASCADE_NONE)
                elem = getReference(manager, elem, sm, vmd);
            else
                elem = manager.attach(elem, null, sm, vmd, false);
        }
        diff = diff || !equals(elem, Array.get(toa, i), pc);
        Array.set(newa, i, elem);
    }
    return (diff) ? newa : toa;
}

From source file:org.eclipse.dataset.AbstractDataset.java

/**
 * Get dataset type from an object. The following are supported: Java Number objects, Apache common math Complex
 * objects, Java arrays and lists/* w  w w.ja v  a2  s.c  om*/
 * 
 * @param obj
 * @return dataset type
 */
public static int getDTypeFromObject(Object obj) {
    int dtype = -1;

    if (obj == null) {
        return dtype;
    }

    if (obj instanceof List<?>) {
        List<?> jl = (List<?>) obj;
        int l = jl.size();
        for (int i = 0; i < l; i++) {
            int ldtype = getDTypeFromObject(jl.get(i));
            if (ldtype > dtype) {
                dtype = ldtype;
            }
        }
    } else if (obj.getClass().isArray()) {
        Class<?> ca = obj.getClass().getComponentType();
        if (isComponentSupported(ca)) {
            return getDTypeFromClass(ca);
        }
        int l = Array.getLength(obj);
        for (int i = 0; i < l; i++) {
            Object lo = Array.get(obj, i);
            int ldtype = getDTypeFromObject(lo);
            if (ldtype > dtype) {
                dtype = ldtype;
            }
        }
    } else if (obj instanceof Dataset) {
        return ((Dataset) obj).getDtype();
    } else if (obj instanceof ILazyDataset) {
        dtype = getDTypeFromClass(((ILazyDataset) obj).elementClass(),
                ((ILazyDataset) obj).getElementsPerItem());
    } else {
        dtype = getDTypeFromClass(obj.getClass());
    }
    return dtype;
}

From source file:net.sf.jasperreports.engine.query.JRJdbcQueryExecuter.java

protected int setStatementMultiParameters(int parameterIndex, String parameterName, boolean ignoreNulls)
        throws SQLException {
    JRValueParameter parameter = getValueParameter(parameterName);
    Object paramValue = parameter.getValue();
    int count;//from ww w. j a  v a2 s  .c om
    int index = 0;
    if (paramValue.getClass().isArray()) {
        int arrayCount = Array.getLength(paramValue);
        for (count = 0; count < arrayCount; ++count) {
            Object value = Array.get(paramValue, count);
            if (!ignoreNulls || value != null) {
                setStatementMultiParameter(parameterIndex + index, parameterName, count, value, parameter);
                ++index;
            }
        }
    } else if (paramValue instanceof Collection<?>) {
        Collection<?> values = (Collection<?>) paramValue;
        count = 0;
        for (Iterator<?> it = values.iterator(); it.hasNext(); ++count) {
            Object value = it.next();

            if (!ignoreNulls || value != null) {
                setStatementMultiParameter(parameterIndex + index, parameterName, count, value, parameter);
                ++index;
            }
        }
    } else {
        throw new JRRuntimeException(EXCEPTION_MESSAGE_KEY_UNEXPECTED_MULTI_PARAMETER_TYPE, (Object[]) null);
    }
    return index;
}

From source file:org.apache.struts.action.DynaActionForm.java

/**
 * <p>Render a String representation of this object.</p>
 *
 * @return A string representation of this object.
 *//* www  .  j a  v  a 2s  .c  om*/
public String toString() {
    StringBuffer sb = new StringBuffer("DynaActionForm[dynaClass=");
    DynaClass dynaClass = getDynaClass();

    if (dynaClass == null) {
        return sb.append("null]").toString();
    }

    sb.append(dynaClass.getName());

    DynaProperty[] props = dynaClass.getDynaProperties();

    if (props == null) {
        props = new DynaProperty[0];
    }

    for (int i = 0; i < props.length; i++) {
        sb.append(',');
        sb.append(props[i].getName());
        sb.append('=');

        Object value = get(props[i].getName());

        if (value == null) {
            sb.append("<NULL>");
        } else if (value.getClass().isArray()) {
            int n = Array.getLength(value);

            sb.append("{");

            for (int j = 0; j < n; j++) {
                if (j > 0) {
                    sb.append(',');
                }

                sb.append(Array.get(value, j));
            }

            sb.append("}");
        } else if (value instanceof List) {
            int n = ((List) value).size();

            sb.append("{");

            for (int j = 0; j < n; j++) {
                if (j > 0) {
                    sb.append(',');
                }

                sb.append(((List) value).get(j));
            }

            sb.append("}");
        } else if (value instanceof Map) {
            int n = 0;
            Iterator keys = ((Map) value).keySet().iterator();

            sb.append("{");

            while (keys.hasNext()) {
                if (n > 0) {
                    sb.append(',');
                }

                n++;

                Object key = keys.next();

                sb.append(key);
                sb.append('=');
                sb.append(((Map) value).get(key));
            }

            sb.append("}");
        } else {
            sb.append(value);
        }
    }

    sb.append("]");

    return (sb.toString());
}