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## net.sf.saxon.value
Class SequenceType

    java.lang.Object
      net.sf.saxon.value.SequenceType

All Implemented Interfaces:
  java.io.Serializable

public final class SequenceType
extends java.lang.Object
implements java.io.Serializable

SequenceType: a sequence type consists of a primary type, which indicates the type of item, and a cardinality, which indicates the number of occurrences permitted. Where the primary type is element or attribute, there may also be a content type, indicating the required type annotation on the element or attribute content.

See Also:
  Serialized Form

Field Summary
`static SequenceType` | `ANY_SEQUENCE` A type that allows any sequence of items
`static SequenceType` | `ATOMIC_SEQUENCE` A type that allows zero or more atomic values
`static SequenceType` | `NODE_SEQUENCE` A type that allows a sequence of zero or more nodes
`static SequenceType` | `NUMERIC_SEQUENCE` A type that allows a sequence of zero or more numeric values
`static SequenceType` | `OPTIONAL_ATOMIC` A type that allows zero or one atomic values
`static SequenceType` | `OPTIONAL_INTEGER` A type that allows a single integer
`static SequenceType` | `OPTIONAL_NODE` A type that allows zero or one nodes
`static SequenceType` | `SINGLE_ATOMIC` A type that allows exactly one atomic value
`static SequenceType` | `SINGLE_INTEGER` A type that allows a single integer
`static SequenceType` | `SINGLE_ITEM` A type that allows exactly one item, of any kind
`static SequenceType` | `SINGLE_NODE` A type that allows a single node
`static SequenceType` | `SINGLE_STRING` A type that allows a single string

Method Summary
`boolean` | `equals(java.lang.Object obj)` Indicates whether some other object is "equal to" this one.
`int` | `getCardinality()` Get the cardinality component of this SequenceType.
`ItemType` | `getPrimaryType()` Get the "primary" part of this required type.
`int` | `hashCode()` Returns a hash code value for the object.
`static SequenceType` | `makeSequenceType(ItemType primaryType, int cardinality)` Construct an instance of SequenceType.
`java.lang.String` | `toString()` Return a string representation of this SequenceType

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

Field Detail

### ANY_SEQUENCE

    public static final SequenceType ANY_SEQUENCE

  A type that allows any sequence of items

### SINGLE_ITEM

    public static final SequenceType SINGLE_ITEM

  A type that allows exactly one item, of any kind

### SINGLE_ATOMIC

    public static final SequenceType SINGLE_ATOMIC

  A type that allows exactly one atomic value

### OPTIONAL_ATOMIC

    public static final SequenceType OPTIONAL_ATOMIC

  A type that allows zero or one atomic values

### ATOMIC_SEQUENCE

    public static final SequenceType ATOMIC_SEQUENCE

  A type that allows zero or more atomic values

### SINGLE_STRING

    public static final SequenceType SINGLE_STRING

  A type that allows a single string

### SINGLE_INTEGER

    public static final SequenceType SINGLE_INTEGER

  A type that allows a single integer

### OPTIONAL_INTEGER

    public static final SequenceType OPTIONAL_INTEGER

  A type that allows a single integer

### OPTIONAL_NODE

    public static final SequenceType OPTIONAL_NODE

  A type that allows zero or one nodes

### SINGLE_NODE

    public static final SequenceType SINGLE_NODE

  A type that allows a single node

### NODE_SEQUENCE

    public static final SequenceType NODE_SEQUENCE

  A type that allows a sequence of zero or more nodes

### NUMERIC_SEQUENCE

    public static final SequenceType NUMERIC_SEQUENCE

  A type that allows a sequence of zero or more numeric values

Method Detail

### makeSequenceType

    public static SequenceType makeSequenceType(ItemType primaryType,
                                                int cardinality)

  Construct an instance of SequenceType. This is a factory method: it maintains a pool of SequenceType objects to reduce the amount of object creation.

  Parameters:
    `primaryType` - The item type
    `cardinality` - The required cardinality

### getPrimaryType

    public ItemType getPrimaryType()

  Get the "primary" part of this required type. E.g. for type element(*, xs:date) the "primary type" is element()

  Returns:
    The item type code of the primary type

### getCardinality

    public int getCardinality()

  Get the cardinality component of this SequenceType. This is one of the constants Cardinality.EXACTLY_ONE, Cardinality.ONE_OR_MORE, etc

  Returns:
    the required cardinality
  See Also:
    `Cardinality`

### toString

    public java.lang.String toString()

  Return a string representation of this SequenceType

  Returns:
    the string representation as an instance of the XPath SequenceType construct

### hashCode

    public int hashCode()

  Returns a hash code value for the object.

### equals

    public boolean equals(java.lang.Object obj)

  Indicates whether some other object is "equal to" this one.

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