OpenJDK 27 · com.sun.org.apache.xerces.internal.impl.dtd.models.MixedContentModel

MixedContentModel is a derivative of the abstract content model base class that handles the special case of mixed model elements. If an element is mixed model, it has PCDATA as its first possible content, followed by an alternation of the possible children. The children cannot have any numeration or order, so it must look like this:

  <!ELEMENT Foo ((#PCDATA|a|b|c|)*)>

So, all we have to do is to keep an array of the possible children and validate by just looking up each child being validated by looking it up in the list.

Field Summary

Modifier and Type	Field and Description
private QName[]	fChildren The list of possible children that we have to accept.
private int[]	fChildrenType The type of the children to support ANY.
private int	fCount The count of possible children that we have to deal with.
private boolean	fOrdered True if mixed content model is ordered.

Constructor Summary

Access	Constructor and Description
public	MixedContentModel(QName[] The list of allowed children. children, int[] The list of the types of the children. type, int The start offset position in the children. offset, int The child count. length, boolean True if content must be ordered. ordered) Constructs a mixed content model.

Method Summary

Modifier and Type Method and Description

Modifier and Type	Method and Description
public int	Returns: The value -1 if fully valid, else the 0 based index of the child that first failed. If the value returned is equal to the number of children, then the specified children are valid but additional content is required to reach a valid ending state. validate(QName[] The children of this element. Each integer is an index within the `StringPool` of the child element name. An index of -1 is used to indicate an occurrence of non-whitespace character data. children, int Offset into the array where the children starts. offset, int The number of entries in the `children` array. length) Implements com.sun.org.apache.xerces.internal.impl.dtd.models.ContentModelValidator.validate. Check that the specified content is valid according to this content model.

public int

Returns:

The value -1 if fully valid, else the 0 based index of the child that first failed. If the value returned is equal to the number of children, then the specified children are valid but additional content is required to reach a valid ending state.

validate(QName[]

The children of this element. Each integer is an index within the StringPool of the child element name. An index of -1 is used to indicate an occurrence of non-whitespace character data.

children, int

Offset into the array where the children starts.

offset, int

The number of entries in the children array.

length)

Implements com.sun.org.apache.xerces.internal.impl.dtd.models.ContentModelValidator.validate.

Check that the specified content is valid according to this content model.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

fChildren	back to summary
private QName[] fChildren The list of possible children that we have to accept.

fChildrenType	back to summary
private int[] fChildrenType The type of the children to support ANY.

fCount	back to summary
private int fCount The count of possible children that we have to deal with.

fOrdered	back to summary
private boolean fOrdered True if mixed content model is ordered. DTD mixed content models are always unordered.

Constructor Detail

MixedContentModel	back to summary
public MixedContentModel(QName[] children, int[] type, int offset, int length, boolean ordered) Constructs a mixed content model. Parameters children:QName[] The list of allowed children. type:int[] The list of the types of the children. offset:int The start offset position in the children. length:int The child count. ordered:boolean True if content must be ordered.

MixedContentModel

back to summary

public MixedContentModel(QName[] children, int[] type, int offset, int length, boolean ordered)

Constructs a mixed content model.

Parameters

children:QName[]: The list of allowed children.
type:int[]: The list of the types of the children.
offset:int: The start offset position in the children.
length:int: The child count.
ordered:boolean: True if content must be ordered.

Method Detail

validate back to summary

validate	back to summary
public int validate(QName[] children, int offset, int length) Implements com.sun.org.apache.xerces.internal.impl.dtd.models.ContentModelValidator.validate. Check that the specified content is valid according to this content model. This method can also be called to do 'what if' testing of content models just to see if they would be valid. A value of -1 in the children array indicates a PCDATA node. All other indexes will be positive and represent child elements. The count can be zero, since some elements have the EMPTY content model and that must be confirmed. Parameters children:QName[] The children of this element. Each integer is an index within the `StringPool` of the child element name. An index of -1 is used to indicate an occurrence of non-whitespace character data. offset:int Offset into the array where the children starts. length:int The number of entries in the `children` array. Returns:int The value -1 if fully valid, else the 0 based index of the child that first failed. If the value returned is equal to the number of children, then the specified children are valid but additional content is required to reach a valid ending state.

public int validate(QName[] children, int offset, int length)

Implements com.sun.org.apache.xerces.internal.impl.dtd.models.ContentModelValidator.validate.

Check that the specified content is valid according to this content model. This method can also be called to do 'what if' testing of content models just to see if they would be valid.

A value of -1 in the children array indicates a PCDATA node. All other indexes will be positive and represent child elements. The count can be zero, since some elements have the EMPTY content model and that must be confirmed.