Java ReadablePartial.size方法代码示例

import org.joda.time.ReadablePartial; //导入方法依赖的package包/类
/**
 * Calculates the number of whole units between the two specified partial datetimes.
 * <p>
 * The two partials must contain the same fields, for example you can specify
 * two <code>LocalDate</code> objects.
 *
 * @param start  the start partial date, validated to not be null
 * @param end  the end partial date, validated to not be null
 * @param zeroInstance  the zero instance constant, must not be null
 * @return the period
 * @throws IllegalArgumentException if the partials are null or invalid
 */
protected static int between(ReadablePartial start, ReadablePartial end, ReadablePeriod zeroInstance) {
    if (start == null || end == null) {
        throw new IllegalArgumentException("ReadablePartial objects must not be null");
    }
    if (start.size() != end.size()) {
        throw new IllegalArgumentException("ReadablePartial objects must have the same set of fields");
    }
    for (int i = 0, isize = start.size(); i < isize; i++) {
        if (start.getFieldType(i) != end.getFieldType(i)) {
            throw new IllegalArgumentException("ReadablePartial objects must have the same set of fields");
        }
    }
    if (DateTimeUtils.isContiguous(start) == false) {
        throw new IllegalArgumentException("ReadablePartial objects must be contiguous");
    }
    Chronology chrono = DateTimeUtils.getChronology(start.getChronology()).withUTC();
    int[] values = chrono.get(zeroInstance, chrono.set(start, 0L), chrono.set(end, 0L));
    return values[0];
}
 

import org.joda.time.ReadablePartial; //导入方法依赖的package包/类
/**
 * Compares this ReadablePartial with another returning true if the chronology,
 * field types and values are equal.
 *
 * @param partial  an object to check against
 * @return true if fields and values are equal
 */
public boolean equals(Object partial) {
    if (this == partial) {
        return true;
    }
    if (partial instanceof ReadablePartial == false) {
        return false;
    }
    ReadablePartial other = (ReadablePartial) partial;
    if (size() != other.size()) {
        return false;
    }
    for (int i = 0, isize = size(); i < isize; i++) {
        if (getValue(i) != other.getValue(i) || getFieldType(i) != other.getFieldType(i)) {
            return false;
        }
    }
    return FieldUtils.equals(getChronology(), other.getChronology());
}
 

import org.joda.time.ReadablePartial; //导入方法依赖的package包/类
/**
 * Compares this partial with another returning an integer
 * indicating the order.
 * <p>
 * The fields are compared in order, from largest to smallest.
 * The first field that is non-equal is used to determine the result.
 * <p>
 * The specified object must be a partial instance whose field types
 * match those of this partial.
 * <p>
 * NOTE: Prior to v2.0, the {@code Comparable} interface was only implemented
 * in this class and not in the {@code ReadablePartial} interface.
 *
 * @param other  an object to check against
 * @return negative if this is less, zero if equal, positive if greater
 * @throws ClassCastException if the partial is the wrong class
 *  or if it has field types that don't match
 * @throws NullPointerException if the partial is null
 * @since 1.1
 */
public int compareTo(ReadablePartial other) {
    if (this == other) {
        return 0;
    }
    if (size() != other.size()) {
        throw new ClassCastException("ReadablePartial objects must have matching field types");
    }
    for (int i = 0, isize = size(); i < isize; i++) {
        if (getFieldType(i) != other.getFieldType(i)) {
            throw new ClassCastException("ReadablePartial objects must have matching field types");
        }
    }
    // fields are ordered largest first
    for (int i = 0, isize = size(); i < isize; i++) {
        if (getValue(i) > other.getValue(i)) {
            return 1;
        }
        if (getValue(i) < other.getValue(i)) {
            return -1;
        }
    }
    return 0;
}
 

import org.joda.time.ReadablePartial; //导入方法依赖的package包/类
public int[] add(ReadablePartial partial, int fieldIndex, int[] values, int valueToAdd) {
    // overridden as superclass algorithm can't handle
    // 2004-02-29 + 48 months -> 2008-02-29 type dates
    if (valueToAdd == 0) {
        return values;
    }
    if (DateTimeUtils.isContiguous(partial)) {
        long instant = 0L;
        for (int i = 0, isize = partial.size(); i < isize; i++) {
            instant = partial.getFieldType(i).getField(GJChronology.this).set(instant, values[i]);
        }
        instant = add(instant, valueToAdd);
        return GJChronology.this.get(partial, instant);
    } else {
        return super.add(partial, fieldIndex, values, valueToAdd);
    }
}
 

import org.joda.time.ReadablePartial; //导入方法依赖的package包/类
public int[] add(ReadablePartial partial, int fieldIndex, int[] values, int valueToAdd) {
    // overridden as superclass algorithm can't handle
    // 2004-02-29 + 48 months -> 2008-02-29 type dates
    if (valueToAdd == 0) {
        return values;
    }
    if (DateTimeUtils.isContiguous(partial)) {
        long instant = 0L;
        for (int i = 0, isize = partial.size(); i < isize; i++) {
            instant = partial.getFieldType(i).getField(iChronology).set(instant, values[i]);
        }
        instant = add(instant, valueToAdd);
        return iChronology.get(partial, instant);
    } else {
        return super.add(partial, fieldIndex, values, valueToAdd);
    }
}
 

import org.joda.time.ReadablePartial; //导入方法依赖的package包/类
@Override
public int getMaximumValue(ReadablePartial partial, int[] values) {
    int size = partial.size();
    for (int i = 0; i < size; i++) {
        if (partial.getFieldType(i) == DateTimeFieldType.monthOfYear()) {
            int month = values[i];
            return this.daysInMonth[month - 1];
        }
    }
    return this.getMaximumValue();
}
 

import org.joda.time.ReadablePartial; //导入方法依赖的package包/类
public int getMaximumValue(ReadablePartial partial, int[] values) {
    Chronology chrono = GJChronology.getInstanceUTC();
    long instant = 0L;
    for (int i = 0, isize = partial.size(); i < isize; i++) {
        DateTimeField field = partial.getFieldType(i).getField(chrono);
        if (values[i] <= field.getMaximumValue(instant)) {
            instant = field.set(instant, values[i]);
        }
    }
    return getMaximumValue(instant);
}
 

import org.joda.time.ReadablePartial; //导入方法依赖的package包/类
/**
 * Gets the values of a partial from an instant.
 *
 * @param partial  the partial instant to use
 * @param instant  the instant to query
 * @return the values of the partial extracted from the instant
 */
public int[] get(ReadablePartial partial, long instant) {
    int size = partial.size();
    int[] values = new int[size];
    for (int i = 0; i < size; i++) {
        values[i] = partial.getFieldType(i).getField(this).get(instant);
    }
    return values;
}
 

import org.joda.time.ReadablePartial; //导入方法依赖的package包/类
/**
 * Sets a value using the specified partial instant.
 * <p>
 * The value of this field (specified by the index) will be set.
 * If the value is invalid, an exception if thrown.
 * <p>
 * If setting this field would make other fields invalid, then those fields
 * may be changed. For example if the current date is the 31st January, and
 * the month is set to February, the day would be invalid. Instead, the day
 * would be changed to the closest value - the 28th/29th February as appropriate.
 * 
 * @param partial  the partial instant
 * @param fieldIndex  the index of this field in the instant
 * @param values  the values to update
 * @param newValue  the value to set, in the units of the field
 * @return the updated values
 * @throws IllegalArgumentException if the value is invalid
 */
public int[] set(ReadablePartial partial, int fieldIndex, int[] values, int newValue) {
    FieldUtils.verifyValueBounds(this, newValue, getMinimumValue(partial, values), getMaximumValue(partial, values));
    values[fieldIndex] = newValue;
    
    // may need to adjust smaller fields
    for (int i = fieldIndex + 1; i < partial.size(); i++) {
        DateTimeField field = partial.getField(i);
        if (values[i] > field.getMaximumValue(partial, values)) {
            values[i] = field.getMaximumValue(partial, values);
        }
        if (values[i] < field.getMinimumValue(partial, values)) {
            values[i] = field.getMinimumValue(partial, values);
        }
    }
    return values;
}
 

import org.joda.time.ReadablePartial; //导入方法依赖的package包/类
/**
 * Extracts the values of the partial from an object of this converter's type.
 * The chrono parameter is a hint to the converter, should it require a
 * chronology to aid in conversion.
 * 
 * @param fieldSource  a partial that provides access to the fields.
 *  This partial may be incomplete and only getFieldType(int) should be used
 * @param object  the object to convert
 * @param chrono  the chronology to use, which is the non-null result of getChronology()
 * @return the array of field values that match the fieldSource, must be non-null valid
 * @throws ClassCastException if the object is invalid
 */
public int[] getPartialValues(ReadablePartial fieldSource, Object object, Chronology chrono) {
    ReadablePartial input = (ReadablePartial) object;
    int size = fieldSource.size();
    int[] values = new int[size];
    for (int i = 0; i < size; i++) {
        values[i] = input.get(fieldSource.getFieldType(i));
    }
    chrono.validate(fieldSource, values);
    return values;
}
 

import org.joda.time.ReadablePartial; //导入方法依赖的package包/类
/**
 * Sets the partial into the instant.
 *
 * @param partial  the partial instant to use
 * @param instant  the instant to update
 * @return the updated instant
 */
public long set(ReadablePartial partial, long instant) {
    for (int i = 0, isize = partial.size(); i < isize; i++) {
        instant = partial.getFieldType(i).getField(this).set(instant, partial.getValue(i));
    }
    return instant;
}