Java Code Examples for com.sun.org.apache.xerces.internal.impl.xs.XSParticleDecl#getMaxOccursUnbounded()
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com.sun.org.apache.xerces.internal.impl.xs.XSParticleDecl#getMaxOccursUnbounded() .
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Example 1
| Source File: CMBuilder.java From Bytecoder with Apache License 2.0 | 4 votes |
|
private CMNode buildSyntaxTree(XSParticleDecl particle, boolean forUPA, boolean optimize) {
int maxOccurs = particle.fMaxOccurs;
int minOccurs = particle.fMinOccurs;
boolean compactedForUPA = false;
if (forUPA) {
// When doing UPA, we reduce the size of the minOccurs/maxOccurs values to make
// processing the DFA faster. For UPA the exact values don't matter.
if (minOccurs > 1) {
if (maxOccurs > minOccurs || particle.getMaxOccursUnbounded()) {
minOccurs = 1;
compactedForUPA = true;
}
else { // maxOccurs == minOccurs
minOccurs = 2;
compactedForUPA = true;
}
}
if (maxOccurs > 1) {
maxOccurs = 2;
compactedForUPA = true;
}
}
short type = particle.fType;
CMNode nodeRet = null;
if ((type == XSParticleDecl.PARTICLE_WILDCARD) ||
(type == XSParticleDecl.PARTICLE_ELEMENT)) {
// (task 1) element and wildcard particles should be converted to
// leaf nodes
// REVISIT: Make a clone of the leaf particle, so that if there
// are two references to the same group, we have two different
// leaf particles for the same element or wildcard decl.
// This is useful for checking UPA.
nodeRet = fNodeFactory.getCMLeafNode(particle.fType, particle.fValue, fParticleCount++, fLeafCount++);
// (task 2) expand occurrence values
nodeRet = expandContentModel(nodeRet, minOccurs, maxOccurs, optimize);
if (nodeRet != null) {
nodeRet.setIsCompactUPAModel(compactedForUPA);
}
}
else if (type == XSParticleDecl.PARTICLE_MODELGROUP) {
// (task 1,3) convert model groups to binary trees
XSModelGroupImpl group = (XSModelGroupImpl)particle.fValue;
CMNode temp = null;
// when the model group is a choice of more than one particles, but
// only one of the particle is not empty, (for example
// <choice>
// <sequence/>
// <element name="e"/>
// </choice>
// ) we can't not return that one particle ("e"). instead, we should
// treat such particle as optional ("e?").
// the following boolean variable is true when there are at least
// 2 non-empty children.
boolean twoChildren = false;
for (int i = 0; i < group.fParticleCount; i++) {
// first convert each child to a CM tree
temp = buildSyntaxTree(group.fParticles[i],
forUPA,
optimize &&
minOccurs == 1 && maxOccurs == 1 &&
(group.fCompositor == XSModelGroupImpl.MODELGROUP_SEQUENCE ||
group.fParticleCount == 1));
// then combine them using binary operation
if (temp != null) {
compactedForUPA |= temp.isCompactedForUPA();
if (nodeRet == null) {
nodeRet = temp;
}
else {
nodeRet = fNodeFactory.getCMBinOpNode(group.fCompositor, nodeRet, temp);
// record the fact that there are at least 2 children
twoChildren = true;
}
}
}
// (task 2) expand occurrence values
if (nodeRet != null) {
// when the group is "choice", there is only one non-empty
// child, and the group had more than one children, we need
// to create a zero-or-one (optional) node for the non-empty
// particle.
if (group.fCompositor == XSModelGroupImpl.MODELGROUP_CHOICE &&
!twoChildren && group.fParticleCount > 1) {
nodeRet = fNodeFactory.getCMUniOpNode(XSParticleDecl.PARTICLE_ZERO_OR_ONE, nodeRet);
}
nodeRet = expandContentModel(nodeRet, minOccurs, maxOccurs, false);
nodeRet.setIsCompactUPAModel(compactedForUPA);
}
}
return nodeRet;
}
Example 2
| Source File: CMBuilder.java From openjdk-jdk9 with GNU General Public License v2.0 | 4 votes |
|
private CMNode buildSyntaxTree(XSParticleDecl particle, boolean forUPA, boolean optimize) {
int maxOccurs = particle.fMaxOccurs;
int minOccurs = particle.fMinOccurs;
boolean compactedForUPA = false;
if (forUPA) {
// When doing UPA, we reduce the size of the minOccurs/maxOccurs values to make
// processing the DFA faster. For UPA the exact values don't matter.
if (minOccurs > 1) {
if (maxOccurs > minOccurs || particle.getMaxOccursUnbounded()) {
minOccurs = 1;
compactedForUPA = true;
}
else { // maxOccurs == minOccurs
minOccurs = 2;
compactedForUPA = true;
}
}
if (maxOccurs > 1) {
maxOccurs = 2;
compactedForUPA = true;
}
}
short type = particle.fType;
CMNode nodeRet = null;
if ((type == XSParticleDecl.PARTICLE_WILDCARD) ||
(type == XSParticleDecl.PARTICLE_ELEMENT)) {
// (task 1) element and wildcard particles should be converted to
// leaf nodes
// REVISIT: Make a clone of the leaf particle, so that if there
// are two references to the same group, we have two different
// leaf particles for the same element or wildcard decl.
// This is useful for checking UPA.
nodeRet = fNodeFactory.getCMLeafNode(particle.fType, particle.fValue, fParticleCount++, fLeafCount++);
// (task 2) expand occurrence values
nodeRet = expandContentModel(nodeRet, minOccurs, maxOccurs, optimize);
if (nodeRet != null) {
nodeRet.setIsCompactUPAModel(compactedForUPA);
}
}
else if (type == XSParticleDecl.PARTICLE_MODELGROUP) {
// (task 1,3) convert model groups to binary trees
XSModelGroupImpl group = (XSModelGroupImpl)particle.fValue;
CMNode temp = null;
// when the model group is a choice of more than one particles, but
// only one of the particle is not empty, (for example
// <choice>
// <sequence/>
// <element name="e"/>
// </choice>
// ) we can't not return that one particle ("e"). instead, we should
// treat such particle as optional ("e?").
// the following boolean variable is true when there are at least
// 2 non-empty children.
boolean twoChildren = false;
for (int i = 0; i < group.fParticleCount; i++) {
// first convert each child to a CM tree
temp = buildSyntaxTree(group.fParticles[i],
forUPA,
optimize &&
minOccurs == 1 && maxOccurs == 1 &&
(group.fCompositor == XSModelGroupImpl.MODELGROUP_SEQUENCE ||
group.fParticleCount == 1));
// then combine them using binary operation
if (temp != null) {
compactedForUPA |= temp.isCompactedForUPA();
if (nodeRet == null) {
nodeRet = temp;
}
else {
nodeRet = fNodeFactory.getCMBinOpNode(group.fCompositor, nodeRet, temp);
// record the fact that there are at least 2 children
twoChildren = true;
}
}
}
// (task 2) expand occurrence values
if (nodeRet != null) {
// when the group is "choice", there is only one non-empty
// child, and the group had more than one children, we need
// to create a zero-or-one (optional) node for the non-empty
// particle.
if (group.fCompositor == XSModelGroupImpl.MODELGROUP_CHOICE &&
!twoChildren && group.fParticleCount > 1) {
nodeRet = fNodeFactory.getCMUniOpNode(XSParticleDecl.PARTICLE_ZERO_OR_ONE, nodeRet);
}
nodeRet = expandContentModel(nodeRet, minOccurs, maxOccurs, false);
nodeRet.setIsCompactUPAModel(compactedForUPA);
}
}
return nodeRet;
}
